Qlabel set text color. html>mf
The default colors and font are style specific. setColor(QPalette::BackgroundColor, bg_color); l. Mar 24, 2016 · #oldPM {color: #333333} #spec {color: blue} #newPM {color: #333333} But Qt doesn't seem to recognise the class selectors. The QLabel specifies a margin. palette = QPalette() palette. 7. Supports the href and name attributes. The code I tried is the following : nom_plan_label = QtGui. Jun 18, 2014 · blackColor = QColor(0, 0, 0) # First, set the text color to red. The :top, :left, :right, :bottom pseudo states depending on the area in which the tool bar is grouped. this is my code. QFont. I think you can use: QLabel::palette() To get the palette of this widget. to change the background or text color, then there is nothing to be found. What I am trying to accomplish is to be able to color each character in the label individually, so I can make them either red or green. You can make your search routine asynchronous or go the easy way and force QLabel to update itself: self. font = QtGui. See Supported HTML Subset for the definition of rich text. You don't need to set the text format to Qt::RichText for this to work. text ¶ Return type. – cmannett85 Commented Dec 8, 2011 at 10:24 May 10, 2018 · If after changing the !enabled to :disabled the problem is still present, I would suggest to try these workarounds: Two workarounds which may work are: Set the font family in the !enabled part too, although it seems redundant; Set a background (e. background-color: transparent; For more details about the possible Qt Style Sheet bugs you may May 10, 2012 · QLabel doesn't have a setIcon method, but it has setPixmap. from PyQt5. setColor (color_object) Here color_effect is the QGraphicsColorizeEffect object. from PyQt4 import QtCore. Note: The functionality implemented for tags listed below is a subset of the full HTML 4 specification. 9 and your code still does not work. " ); QObject::connect ( button, SIGNAL ( clicked () ), label, SLOT ( setText ( "Boo!" ) ) ); hmmm i believe the problem is when you connect the signal and the slot. Done by the parent The label will be displayed in parent without background or frame (by default). Dec 6, 2017 · 1. setText (QString ("Search Supported Tags. setTextColor(Qt::red); The output of the above code will be a QLabel with the text "Hello Jun 22, 2012 · myCheckbox->setStyleSheet("QCheckBox:unchecked{ color: red; }QCheckBox:checked{ color: red; }"); Setting both states changed the colors for me. Currently I am just setting the text of the label but have no idea how to set the font color. PyQt give color to a specific element. The following table lists the HTML tags supported by Qt's rich text engine. Notice that I want to set a different color for each axis label. Apart from some inconsistencies with your code example setting the background color and text color of a QPushButton works just fine with: setStyleSheet('QPushButton {background-color: #A3C1DA; color: red;}') Example (using PySide): from PySide import QtGui. Mar 22, 2012 · To align text in a QLabel by calling QLabel::setAlignment works like expected for me. l1 = QLineEdit() color_to_be_set= l1. 0. Feb 9, 2017 · I have gone through Qt forums and used different examples given for changing the color of Label text, unsuccessfully. textChanged. setFont(font) for label in self. QLabel. QProgressBar { border: 2px solid grey; border-radius: 5px; } QProgressBar::chunk { background-color: #05B8CC; width: 20px; } This leaves the text-align , which we customize by positioning the text in the center of the progress bar. How can I do that. setFont(QtGui. Changing the Label images in Qt. background-color: red; Jan 20, 2024 · The QColor object represents the color that you want to set the text of the QLabel to. QFont(). This property holds the label’s text. QLabel::setText overwrites the previously displayed text when the text is updated: QLabels above are added on a form in Qt designer and then added onto one tab of a QTabWidget at runtime. Sunken) label. Label { text:"Label" } You can use the properties of Text to change the appearance of the text as desired: Label { text:"Hello world" font. setBold(), because there is nothing to be set to bold. palette()); p. palette(). Maybe you miss to add your Label to a Layout (so your label would automatically resized if your widget is resized). text ¶ Return type: str. PySide6. m_text = text; m_titleText->setText(text); QFont font = m_titleText->font(); 20. The first thing we need to do, is add the Custom Font to the QFontDatabase. # create a window and add the label to it. 42. You can use stylesheet. setStyleSheet(. Panel) label. setColor(QPalette. I have put a label for display the entered number and answer so I want to change the color of this label. These methods set the corresponding attribute of the selected text. setTextColor(redColor) redText = "I want this text red". Jun 3, 2010 · 68. green. QApplication. app = QtGui. Apr 3, 2019 · 2. setStyleSheet method but it changes whole background. Jun 15, 2006 · Qt 4. Argument : It takes color object as argument example Qt. 2. myTextEdit. Feb 25, 2020 · 가장 권장되는 방법은 Qt 스타일 시트를 사용하는 것이다. May 3, 2021 · xxxxxxxxxx. setText (QString ("Searching")) self. I'm sure you could modify the code to change the text color of the current selection. setText(_translate("rep_stat", self. setStyleSheet('. The following code example shows how to use the setTextColor() method to set the text color of a QLabel to red: c++ QLabel label; label. 10 Mar 14, 2022 · QLabel是Qt框架中功能强大且灵活的控件，适用于显示文本和图片的多种场景。通过详细了解QLabel的基本用法、样式设置、交互功能和高级特性，开发者可以在实际项目中充分利用QLabel的优势，构建出丰富多样的用户界面。 Apr 13, 2014 · Hi, you can change the color palette of the QLabel and set the WindowText (that will change the text color). 716 3 3 silver badges 14 14 bronze badges. 1: What methods can I use for setting the text color on a QLabel item? I can easily change the font, font size, the text itself and the alignment of the label but not the text colour. 4. The QLabel class allows you to create a label widget that displays text, an image, or an animated image (GIF). answered Mar 31, 2012 at 5:02. QApplication([]) Mar 7, 2011 · So, I added a QLabel and wanted to set the text color and background color to look like a title bar would (say white over black (or blue)). QLabel {color:blue} QFrame:hover {color:red} This does not work when using the object-name, probably because of the conflict resolution of QSS. Jun 16, 2017 · label = QLabel(self) label. how to set the background color for draw text? 3. They may be synonyms, but that's irrelevant here. This delegate will check the foreground color role of the item. I can't change font-family on codrops dropdown menu. setPalette(p); Which should make label's background whatever color transparent. QPalette. See Qt::TextInteractionFlag. My Solution: from PyQt4 import QtGui. Tags: designer label pyqt5 whatever. Setting styles in Qt QLabels via style sheets and HTML classes. Hi. UPDATE. stat_lbl. qt. In the above example, the setStyleSheet function is called on the label object to set the color property of the CSS style to red, which changes the text color of the label to red. stat_value_color) self. QtWidgets. QtWidgets import Jun 27, 2021 · A comment is not a proper place to explain this, but consider the widget of the proposed solution: it doesn't consider its contents: you can resize it to a size smaller than the text, which is obviously not a good thing; and you cannot just set arbitrary minimum sizes, as you should consider the content, the alignment, possible word wrapping 2. . QTimeEdit: See QSpinBox. Set Qlabel width. The first parameter is the Text we want to display on the QLabel. Contributed on May 03 2021. 5%. QToolBar: Supports the box model. QLabel *text = new QLabel(QString("your text here"), this); text->setStyleSheet("color: blue"); // init widget action. label = new QLabel("0",this);//label for the text inputs. Try implementing it yourself with your standards. You can use Qt StyleSheets and set the styleSheet property of QLabel. h file (or do it yourself). name() # this approach is giving the wrong color q1 = QLabel() q1. #2. Sep 6, 2017 · QLabel: set color of text and background. The second parameter is the parent widget in which we want to place the widget. white); As far as I know, the simplest way to create the two-color label you want is to simply make two labels, and make sure they get placed next to each other in the proper order. setStyleSheet("QLabel { background-color : red; color : blue; }"); Popularity 9/10 Helpfulness 7/10 Language whatever. connect(lambda text: myQLabel. so, therefore, you can share the same one with all the labels. Oct 10, 2014 · I am new to Qt and C++ and working on an application and I am trying to add QLabel in a QWidget, using QHBoxLayout. str. May 29, 2020 · QLabel: set color of text and background. Tested with Qt5. PyQt5, Qlabel text in multiple colors. Set Image as Background and Text on Top of it in qlabel. If you want to insert your label in another widget, you have to set its parent: QLabel* plbl = new QLabel("foobar", parent); // plbl->show(); // Useless. append(validFormat. QWidgetAction *widAct= new QWidgetAction(this); widAct->setDefaultWidget(text); Dec 21, 2015 · 31. Now I want to change the text of the QLablel to "Hai, Welcome to Python". The label I want to change is label_nombre, and I want to replace it for le_user, which corresponds to one of the QLineEdits. Syntax : color_effect. I have the same behaviour as you. 3 release Result in I wanted a user to change QLabel background-color dynamically. However, the following doesn't appear to work for the background although the documentation states that bgcolor is a valid body property to set. ) This creates the QLabel widget. The size of the border would be 75% of the QLabel width, starting at 12. label -> setGeometry(QRect(QPoint(75,25),QSize(50,200))); please help. This I understand , but hv another problem, I add to background Jun 9, 2014 · Second, based on documentation from three sources ( PySide, ZetCode, and Nullege ), I tried to change my QLabel style to 'Cleanlooks': QtGui. Text, {your QColor}), and the font use QFont. setFrameShape(QFrame. I can use QLabel. also, you can try. Jun 23, 2016 · QLabel: set color of text and background. QLabel() nom_plan_label. Generic code to align non-constant-width text on QLabel. QLabel is a widget class in PyQt5 used for displaying text or images, and it can be enhanced to support user interaction through signals and slots. label. At beginning, I assign text "Hello,Python" to that QLablel. Source: Grepper. QLabel* pLabel = new QLabel; pLabel->setStyleSheet ("QLabel { background-color : red; color : blue; }"); Qt 스타일 시트를 사용하지 않고 QLabel의 QPalette 을 이용할 수도 Dec 22, 2010 · Your "method to search directories" is blocking the GUI hence QLabel is not able to update the text. , black) How can I get the color of the text in the QLineEdit, and set it as the color in the QLabel. g. QtWidgets module: Second, create a new instance of the QLabel class: In this syntax, you pass a string that you want to display to the QLabel. exit(app. setStyleSheet("QLabel#nom_plan_label {color: yellow}") Any hint would be appreciated. color(). PySide2. Feb 8, 2017 · If your showMessages text will be all of the same color, you can define it in the palette of QStatusBar via QtDesigner(window text color) for temporary messages, and then use the QLabel color for normal and permanent messages of different colors. Designer. Feb 6, 2023 · For instance, I can't test right now, but I know PySide behaves slightly differently from PyQt for signal connections. Syntax : label. setText ()方法是用来改变标签的内容的。. Vaidotas Strazdas. I am posting a simple helloworld example for it. I have been looking at other threads but have not been able to figure out how to best do this. I read this article but still can't get the working solution. The outline thickness is based on the point size of the font, the default ratio is 1/25 (i. whenever memory matters you can use Nov 9, 2014 · Problem is that QLabel background-color is not changed as dynamically on the my gui which is designed. In Qt documentation, I have found out that there are two options how to change font-weight: Oct 8, 2020 · I am trying to find out if there is a way to split the text contained inside a QLabel into multiple labels, one for each character in the text. QLabel { font-size: 14pt;}') Note: Be sure to set the stylesheet before attaching your widgets to its parent, otherwise you would need to manually trigger a style refresh Jun 9, 2019 · QLabel change font color without changing any other style. move(80, 100) Here we are moving the Label widget from it’s default position to (0, 0) on the screen to the 80th X-coordinate and the 100th Y-coordinate. write(redText) # To change it back to black, we manually use `setTextColor` again. Voltage_Label] if you are creating a font object every time you iterate over an item of self. @mahd96. 输出 : PyQt5 - 如何改变预先存在的标签的文本 | setText方法 在GUI应用程序中，需要使用PyQt5中的标签来显示信息，但有时也需要改变标签的文本，在本教程中我们将看到如何做到这一点。. Ensure the label object containing the link is selected, Locate the openExternalLinks property within the QLabel Group in the Property Editor (you can type open into the Property Editor filter field), Set property openExternalLinks to True (checked). Dec 12, 2014 · I'm curious to know why you spent all that time on this answer, when you'd already been given a one-line solution to your original question. 语法： label. e. Python Qt and multi row qlabel. ~E. ekhumoro. Oct 10, 2020 · You can set the OutlinedLabel fill and outline color with setBrush and setPen. Paint application Qt. Jul 18, 2017 · If I try QmessageBox . May 4, 2017 · How can I set button background colours in Qt, even overriding the platform theme? 1 Change background colour of PyQt5 QPushButton without losing the default button style Feb 10, 2016 · The text of a QLabel can be made selectable by mouse like so: label->setTextInteractionFlags(Qt::TextSelectableByMouse); This is found in the QLabel documentation. I made all the changes you told me to do, the project is looking pretty much organized, but now i am getting this output: Jun 2, 2020 · In my code, use one QLabel with fixed dimension/size. But if you use that to set a QPixmap it overrides your text. This CSS will only apply to QLabel objects which are children or grand children of a YourContainerClassWidget object. Your button is emiting a clicked signal but nothing else and your qlabel slot settext (QString) is expecting a Qstring from Apr 29, 2015 · But keep in mind that you have to tweak the width and height of your QLabel, in order for it to look the same as QAction does. in side of programming I use together with QPalette on the QT 5. Label extends Text with styling and font inheritance. The text will be interpreted either as plain text or as rich text, depending on the text format setting; see setTextFormat() . show() sys. setText("the text") # then set the new color "Trial#1 (Not Aug 29, 2012 · How to set a image in QLabel, QT? 1. 0 margin's behavior had to be preserved in Qt 4. setColor(QtGui. QFont("Times", 8, QtGui. Mar 26, 2020 · In this article, we will see how to change the font and size of the text in Label, we can do this by using setFont() method. setLabelsBrush(QBrush(Qt::red)); But this sets the same color for all the labels. end how add background if I use global setting for all. See setFontWeight for bold, setFontItalic for italic and setFontUnderline for underline. I am trying to use setStyleSheet function but it doesn't work. Tried using axisY. format('This is a valid text')) textEdit. exec_()) Additionally, if you want to color code the text for each new lines, QTextEdit has a textChanged signal, you can connect it to a method where you read the new line from QTextEdit and check for the validity of the text, and set the color accordingly. Next, add the font file you downloaded to our QFontDatabase using the addApplicationFont() function. It seems there are some oddities like this in the stylesheet and palette system so keep your eyes out for them and try a few different things (i. Feb 24, 2016 · 4. Jan 8, 2022 · 0. setFrameShadow(QFrame. both must have the same parameter. Also if the text changes, the 'border' should stay the same: Furthermore it should still be possible to set the background color of the QLabel via a QStylesheet or some other API. setBold is a method of QFont: it needs an instance of QFont. Feb 21, 2022 · second, QLabel that has a default text color (e. The default setting is Qt::AutoText; i. 20. The text overwrite is not visible when the the tab / form is first displayed, but when navigating back from another tab or just updating the label values. Label can also have a visual background item. Is there any way to use QColor somehow to achieve desired? Thanks Setting the text clears any previous content. QLabel의 텍스트 색과 배경색을 변경하려면 다음과 같이한다. QLabel it's change font for all form/windows. QLabel will try to auto-detect the format of the text set. Oct 12, 2013 · Setting colour of text in QT QLabel Is there a simple means for setting the colour of text in a QLabel widget? There doesn't seem to be a property for this and the documentation only mentions text colour in the context of displaying small rich text documents. Below is the implementation. Simply pass in the file path, or file name of the Font File into this function, and it will be ready Mar 31, 2012 · If you define a QColor with alpha of 0 you will get background with transparent color, so for example: QColor bg_color(255, 0, 0, 0); QPalette p(l. First, get the color selected using QColorDialog, and then set the style sheet of the label as it is shown below: QColor clr = QColorDialog::getColor(Qt::white, this); Dec 29, 2016 · 7. Related. The 4. Qt CSS syntax allows you to select children for the CSS rules ( Qt doc ), but it is based on the parentship of QObjects not in which class contains pointers to the QLabel. setText (Info) 参数： 它 Dec 8, 2011 · When openExternalLinks() is true and the text interaction flags are set apprpriately, QDesktopServices::openUrl() is triggered carrying the URL of the label. The default is white text with a black outline. In fact, nothing I enter has changed a single pixel in my Hello World widget. That is mostly due to the fact that strings are immutable types (so, styleSheet can never be affected by any change in color), but also because there's no dynamic relation between color and styleSheet. But the moment I set custom content like this: myQEdit->setDocument(new QTextDocument(str)); Nov 15, 2013 · I want to change the labels once the user logs in to the program. Subclassing QLabel to show native 'Mouse Hover Button indicator' 0. setForeground(Color. Apr 26, 2016 · How can I make my buttons - of a background color and text color that I don't know, but the button does - have that "disabled look" ? (Note - the color update works on disabled items too - that is not really complicated though - whatever style sheet I apply on setting widget disabled can be applied in the colorUpdate function). Use setOutlineThickness to change it. The docs are helpful) QLabel *label = new QLabel(this); label->setFrameStyle(QFrame::Panel | QFrame::Sunken); label->setText("first line\nsecond line"); label->setAlignment(Qt::AlignBottom | Qt::AlignRight); //Here is how to change position: label May 12, 2017 · 1 Answer. For example: Text to be written in QLabel: 00-01-02-03-04-05 Feb 27, 2019 · replied to mahd96 on 27 Feb 2019, 04:34. For example, we change the border to grey and the chunk to cerulean. setText(nom_plan_vignette) nom_plan_label. Feb 19, 2021 · I trying to set gradient color for QLabel text. Sep 6, 2016 · You need to create an instance of QLabel, like this: (Here is the example from the docs. Edit: Ok, I managed to change the colour of the label by creating a new palette for it, but I want to change the colour of the text only, not whole labels. This might be an easy question, but I'm trying to give a color to a specific QLabel in my application and it doesn't work. Mar 21, 2014 · I'm trying to change the style of my QLabel using a dynamic property since we can target this property in QSS like this: QLabel[foo = "warning"]{ color: red; } QLabel[foo = "success"]{ color: green; } the stye of my label does update when I use the QApplication::setStyleSheet() but does not seems to work when I change the value of the property. Note that self. void MyClass::setTitle(const QString& text) {. You can use that same function to make links selectable by keyboard, highlight URL links, and make the text editable. self. repaint () # method to search directories goes here self. They are still different concepts within the setting of QLabel. setTextColor(blackColor) blackText = "And this text black". Using Qt 5. 19. May 7, 2024 · PyQt5 Interactive QLabel Widgets. edited May 12, 2017 at 4:48. python Mar 26, 2012 · label->setText ( "Ready. I am trying to set a font color on a QLabel to a hex value received from the server. 0. . setFont (QFont (font_name, size)) Argument : It take two argument : 1. Jan 30, 2019 · 2. See also Layout Management. setStyle(QtGui. Sample code: // label. Apr 28, 2017 · I want to set background-color of a part of text in QLabel differently. label. ("QLabel {background-color: blue; color: red Oct 7, 2014 · Instead it should have a padding of something like 10px to the displayed text. Mar 28, 2014 · Assuming the signal from the Worker class has been connected to a slot in an object on the main thread, such as QMainWindow, you'd receive the text in the slot and update the label: - void QMainWindow::UpdateLabel(const QString text) { ui->label->setText(text); } Jan 4, 2016 · QLabels allow writing and displaying HTML codes so one way of setting a QLabel’s color would be by setting the color as it is done in HTML but in Qt there is another way. Foreground, self. but there are a few possibilities to achieve what you want: use the html-capabilities of the QLabel to display text+image; use two labels, one with the text and one with the image; paint the component yourself Sep 2, 2021 · textEdit. If this foreground color is not the default WindowText color of the palette, that means a specific color is set and this specific color is used for the highlighted text color. Note that the "border: 1px" specifier must be removed from the style sheet otherwise it will be used in preference to the specified line width. setLineWidth(3) Where I've just hardwired the line width. Qt: showing text under the mouse cursor when over a Feb 2, 2007 · Hi, I want to change (1) background color for a QPushbutton (2) color of text for QPushbutton (3) background color of Qlabel (4) color of text for QLabel. create('Cleanlooks')) Unfortunately, this changed nothing. ] answered Mar 4, 2021 at 19:52. How to decrease the font size of the QLabel, and display full text with that particular area/size (without any cut off / hidde /hidden) ? May 3, 2018 · I want to change the color of the markers (text of the categories) themselves, not the ticks. label = QLabel( "Hello, World!" # set the style sheet to change the text color to red. Bold) [label. You can't call directly QtGui. Change QLabel color using python code not html? 1. QtGUI. highlight(). Mar 22, 2016 · 48. In this section we want to focus on creating QLabel widgets with interactive features such as hyperlinks and tooltips in PyQt5. # run the QT application. setText("Hello World!"); label. See QAbsractScrollArea to style scrollable backgrounds. QStyleFactory. Once you have the palette I guess you could retrieve the color via: ColorRole r = QPalette::Text; const QBrush & QPalette::brush(r); Once you have the QBrush you can simply use: const QColor & QBrush::color() const. To create a label widget, you follow these steps: First, import the QLabel widget from PyQt6. 67. Sep 15, 2014 · It's quite well documented how to make line edit widget read only, but if I want to make it even more obvious, i. in the UI editor click on "Change Palette" and play around with that, if you need to do that in c++ you can change the color in the UI file and copy the generated c++ code from the *_ui. 1. answered Mar 22, 2016 at 15:38. CENTER); title. The QLabel accepts rich text so you can process the text in the QLineEdit and replace key words with the HTML needed to display the text in the way you want it. answered Jun 13, 2010 at 8:00. Voltage_Label it will cost you some memory. While i didnt change the content programmatically, the desired color was used. Is this a fundamental limitation of the Qt styling, or am I doing something wrong? I can get it to change the style of the whole QLabel, using QLabel as a selector, but I want different parts of it to be styled differently. Nov 26, 2009 · Answering myself, here is what I ended up doing : a delegate. Not all attributes are supported, see comments for each tag. "QLabel { color: %s}" % ('green' if text else 'red'))) answered Oct 28, 2016 at 23:02. Here is the piece of the code: The color and background of selected text is styled using selection-color and selection-background-color respectively. a 25pt font will have a 1px thick outline). setStylesheet(" color: red;"); If debugging is the process of removing software bugs, then programming must be the process of putting them in. But I suspect that your continuing difficulties on this subject stem from a failure to understand what the various color roles do - in particular, Background and Foreground (which are both obsolete) aren't used in the way that you think they are (you Nov 23, 2017 · I would like to have my text in QLabel somewhere between bold and normal style and I believe that setting font-weight should be the answer to my problem. setBold(True)) wouldn't work either, because Jan 19, 2023 · If you consider the above, both the print statements will return the same value: changing color doesn't change styleSheet. You have to first create the QFont object, then set it to bold, then set it as the label's font. First import the QFont and QFontDatabase Classes from PyQt6. But, with this simple QSS code I get the label's text to be blue, and red when hovered. pixelSize:22 font. I only want to change background of particular text. QDialog { border-image: url(':/images/image') 0 0 0 0 stretch stretch; } it's set , but how set only for this QMessageBoxes. stat_name, None)) Jun 25, 2014 · The stylesheet specifies the padding. May 10, 2020 · Color effect is not like background color it is more like of colored filters we use on pictures. If you want to manage the text color of QLabel you could wrap it with customized class. The text will be interpreted either as plain text or as rich text, depending on the text format setting; see setTextFormat(). Return : It returns None. Aug 16, 2020 · So in your case, to apply to all widgets in your application you can do the following to set the font size of all QLabel instances: app = QApplication([]) app. A minimal example: May 27, 2019 · The label will appear as just a text on the screen. Aug 18, 2020 · When the textEdited signal is emitted, use it to update the text of the QLabel. Firstly I have added 3 slider (for RGB in range (0-255)) to gui and then QLabel. Setting the text clears any previous content. Apr 22, 2011 · So I decided to set the color of my QTextEdit from the designer itself - by specifying my custom color in the option to set the raw html content of the QTextEdit. The code you wrote above will never work properly there, as the checked arg is considered positional. The visual outcome is due to both. PyQt - Create QLabels at Dec 14, 2013 · 4. Jul 23, 2015 · I am developing calculator using qt framework. Jan 28, 2017 · QLabel: set color of text and background. [This property is set to False by default. You can set the color of a JLabel by altering the foreground category: JLabel title = new JLabel("I love stackoverflow!", JLabel. Sorted by: Reset to default. warning->setStyleSheet("font-weight: bold; color: red"); Qt supports most CSS styles on its QWidget -derived classes. Font name it can be ‘Arial’, ‘Times’ etc. For the Color use QPallete, then use {your palette}. italic:true } See also Customizing Label. For example: ColorLabel(const QString &text, QWidget *parent = nullptr) : QLabel(text, parent) setAutoFillBackground(true); void setTextColor(const QColor &color) QPalette palette = this->palette(); The textChanged signal sends the text as a parameter, so you can use that to switch between colours: myQLineEdit. 2, so as not to break existing code. I am setting the text of label to something but it is not visible in the Label. selectors, pseudo-states, etc. If no text has been set this will return an empty string. tg ld cc mu gj hn mf jt gd gx
The default colors and font are style specific. setColor(QPalette::BackgroundColor, bg_color); l. Mar 24, 2016 · #oldPM {color: #333333} #spec {color: blue} #newPM {color: #333333} But Qt doesn't seem to recognise the class selectors. The QLabel specifies a margin. palette = QPalette() palette. 7. Supports the href and name attributes. The code I tried is the following : nom_plan_label = QtGui. Jun 18, 2014 · blackColor = QColor(0, 0, 0) # First, set the text color to red. The :top, :left, :right, :bottom pseudo states depending on the area in which the tool bar is grouped. this is my code. QFont. I think you can use: QLabel::palette() To get the palette of this widget. to change the background or text color, then there is nothing to be found. What I am trying to accomplish is to be able to color each character in the label individually, so I can make them either red or green. You can make your search routine asynchronous or go the easy way and force QLabel to update itself: self. font = QtGui. See Supported HTML Subset for the definition of rich text. You don't need to set the text format to Qt::RichText for this to work. text ¶ Return type. – cmannett85 Commented Dec 8, 2011 at 10:24 May 10, 2018 · If after changing the !enabled to :disabled the problem is still present, I would suggest to try these workarounds: Two workarounds which may work are: Set the font family in the !enabled part too, although it seems redundant; Set a background (e. background-color: transparent; For more details about the possible Qt Style Sheet bugs you may May 10, 2012 · QLabel doesn't have a setIcon method, but it has setPixmap. from PyQt5. setColor (color_object) Here color_effect is the QGraphicsColorizeEffect object. from PyQt4 import QtCore. Note: The functionality implemented for tags listed below is a subset of the full HTML 4 specification. 9 and your code still does not work. " ); QObject::connect ( button, SIGNAL ( clicked () ), label, SLOT ( setText ( "Boo!" ) ) ); hmmm i believe the problem is when you connect the signal and the slot. Done by the parent The label will be displayed in parent without background or frame (by default). Dec 6, 2017 · 1. setText (QString ("Search Supported Tags. setTextColor(Qt::red); The output of the above code will be a QLabel with the text "Hello Jun 22, 2012 · myCheckbox->setStyleSheet("QCheckBox:unchecked{ color: red; }QCheckBox:checked{ color: red; }"); Setting both states changed the colors for me. Currently I am just setting the text of the label but have no idea how to set the font color. PyQt give color to a specific element. The following table lists the HTML tags supported by Qt's rich text engine. Notice that I want to set a different color for each axis label. Apart from some inconsistencies with your code example setting the background color and text color of a QPushButton works just fine with: setStyleSheet('QPushButton {background-color: #A3C1DA; color: red;}') Example (using PySide): from PySide import QtGui. Mar 22, 2012 · To align text in a QLabel by calling QLabel::setAlignment works like expected for me. l1 = QLineEdit() color_to_be_set= l1. 0. Feb 9, 2017 · I have gone through Qt forums and used different examples given for changing the color of Label text, unsuccessfully. textChanged. setFont(font) for label in self. QLabel. QProgressBar { border: 2px solid grey; border-radius: 5px; } QProgressBar::chunk { background-color: #05B8CC; width: 20px; } This leaves the text-align , which we customize by positioning the text in the center of the progress bar. How can I do that. setFont(QtGui. Changing the Label images in Qt. background-color: red; Jan 20, 2024 · The QColor object represents the color that you want to set the text of the QLabel to. QFont(). This property holds the label’s text. QLabel::setText overwrites the previously displayed text when the text is updated: QLabels above are added on a form in Qt designer and then added onto one tab of a QTabWidget at runtime. Sunken) label. Label { text:"Label" } You can use the properties of Text to change the appearance of the text as desired: Label { text:"Hello world" font. setBold(), because there is nothing to be set to bold. palette()); p. palette(). Maybe you miss to add your Label to a Layout (so your label would automatically resized if your widget is resized). text ¶ Return type: str. PySide6. m_text = text; m_titleText->setText(text); QFont font = m_titleText->font(); 20. The first thing we need to do, is add the Custom Font to the QFontDatabase. # create a window and add the label to it. 42. You can use stylesheet. setStyleSheet(. Panel) label. setColor(QPalette. I have put a label for display the entered number and answer so I want to change the color of this label. These methods set the corresponding attribute of the selected text. setTextColor(redColor) redText = "I want this text red". Jun 3, 2010 · 68. green. QApplication. app = QtGui. Apr 3, 2019 · 2. setStyleSheet method but it changes whole background. Jun 15, 2006 · Qt 4. Argument : It takes color object as argument example Qt. 2. myTextEdit. Feb 25, 2020 · 가장 권장되는 방법은 Qt 스타일 시트를 사용하는 것이다. May 3, 2021 · xxxxxxxxxx. setText (QString ("Searching")) self. I'm sure you could modify the code to change the text color of the current selection. setText(_translate("rep_stat", self. setStyleSheet('. The following code example shows how to use the setTextColor() method to set the text color of a QLabel to red: c++ QLabel label; label. 10 Mar 14, 2022 · QLabel是Qt框架中功能强大且灵活的控件，适用于显示文本和图片的多种场景。通过详细了解QLabel的基本用法、样式设置、交互功能和高级特性，开发者可以在实际项目中充分利用QLabel的优势，构建出丰富多样的用户界面。 Apr 13, 2014 · Hi, you can change the color palette of the QLabel and set the WindowText (that will change the text color). 716 3 3 silver badges 14 14 bronze badges. 1: What methods can I use for setting the text color on a QLabel item? I can easily change the font, font size, the text itself and the alignment of the label but not the text colour. 4. The QLabel class allows you to create a label widget that displays text, an image, or an animated image (GIF). answered Mar 31, 2012 at 5:02. QApplication([]) Mar 7, 2011 · So, I added a QLabel and wanted to set the text color and background color to look like a title bar would (say white over black (or blue)). QLabel {color:blue} QFrame:hover {color:red} This does not work when using the object-name, probably because of the conflict resolution of QSS. Jun 16, 2017 · label = QLabel(self) label. how to set the background color for draw text? 3. They may be synonyms, but that's irrelevant here. This delegate will check the foreground color role of the item. I can't change font-family on codrops dropdown menu. setPalette(p); Which should make label's background whatever color transparent. QPalette. See Qt::TextInteractionFlag. My Solution: from PyQt4 import QtGui. Tags: designer label pyqt5 whatever. Setting styles in Qt QLabels via style sheets and HTML classes. Hi. UPDATE. stat_lbl. qt. In the above example, the setStyleSheet function is called on the label object to set the color property of the CSS style to red, which changes the text color of the label to red. stat_value_color) self. QtWidgets. QtWidgets import Jun 27, 2021 · A comment is not a proper place to explain this, but consider the widget of the proposed solution: it doesn't consider its contents: you can resize it to a size smaller than the text, which is obviously not a good thing; and you cannot just set arbitrary minimum sizes, as you should consider the content, the alignment, possible word wrapping 2. . QTimeEdit: See QSpinBox. Set Qlabel width. The first parameter is the Text we want to display on the QLabel. Contributed on May 03 2021. 5%. QToolBar: Supports the box model. QLabel *text = new QLabel(QString("your text here"), this); text->setStyleSheet("color: blue"); // init widget action. label = new QLabel("0",this);//label for the text inputs. Try implementing it yourself with your standards. You can use Qt StyleSheets and set the styleSheet property of QLabel. h file (or do it yourself). name() # this approach is giving the wrong color q1 = QLabel() q1. #2. Sep 6, 2017 · QLabel: set color of text and background. The second parameter is the parent widget in which we want to place the widget. white); As far as I know, the simplest way to create the two-color label you want is to simply make two labels, and make sure they get placed next to each other in the proper order. setStyleSheet("QLabel { background-color : red; color : blue; }"); Popularity 9/10 Helpfulness 7/10 Language whatever. connect(lambda text: myQLabel. so, therefore, you can share the same one with all the labels. Oct 10, 2014 · I am new to Qt and C++ and working on an application and I am trying to add QLabel in a QWidget, using QHBoxLayout. str. May 29, 2020 · QLabel: set color of text and background. Tested with Qt5. PyQt5, Qlabel text in multiple colors. Set Image as Background and Text on Top of it in qlabel. If you want to insert your label in another widget, you have to set its parent: QLabel* plbl = new QLabel("foobar", parent); // plbl->show(); // Useless. append(validFormat. QWidgetAction *widAct= new QWidgetAction(this); widAct->setDefaultWidget(text); Dec 21, 2015 · 31. Now I want to change the text of the QLablel to "Hai, Welcome to Python". The label I want to change is label_nombre, and I want to replace it for le_user, which corresponds to one of the QLineEdits. Syntax : color_effect. I have the same behaviour as you. 3 release Result in I wanted a user to change QLabel background-color dynamically. However, the following doesn't appear to work for the background although the documentation states that bgcolor is a valid body property to set. ) This creates the QLabel widget. The size of the border would be 75% of the QLabel width, starting at 12. label -> setGeometry(QRect(QPoint(75,25),QSize(50,200))); please help. This I understand , but hv another problem, I add to background Jun 9, 2014 · Second, based on documentation from three sources ( PySide, ZetCode, and Nullege ), I tried to change my QLabel style to 'Cleanlooks': QtGui. Text, {your QColor}), and the font use QFont. setFrameShape(QFrame. I can use QLabel. also, you can try. Jun 23, 2016 · QLabel: set color of text and background. QLabel() nom_plan_label. Generic code to align non-constant-width text on QLabel. QLabel is a widget class in PyQt5 used for displaying text or images, and it can be enhanced to support user interaction through signals and slots. label. At beginning, I assign text "Hello,Python" to that QLablel. Source: Grepper. QLabel* pLabel = new QLabel; pLabel->setStyleSheet ("QLabel { background-color : red; color : blue; }"); Qt 스타일 시트를 사용하지 않고 QLabel의 QPalette 을 이용할 수도 Dec 22, 2010 · Your "method to search directories" is blocking the GUI hence QLabel is not able to update the text. , black) How can I get the color of the text in the QLineEdit, and set it as the color in the QLabel. g. QtWidgets module: Second, create a new instance of the QLabel class: In this syntax, you pass a string that you want to display to the QLabel. exit(app. setStyleSheet("QLabel#nom_plan_label {color: yellow}") Any hint would be appreciated. color(). PySide2. Feb 8, 2017 · If your showMessages text will be all of the same color, you can define it in the palette of QStatusBar via QtDesigner(window text color) for temporary messages, and then use the QLabel color for normal and permanent messages of different colors. Designer. Feb 6, 2023 · For instance, I can't test right now, but I know PySide behaves slightly differently from PyQt for signal connections. Syntax : label. setText ()方法是用来改变标签的内容的。. Vaidotas Strazdas. I am posting a simple helloworld example for it. I have been looking at other threads but have not been able to figure out how to best do this. I read this article but still can't get the working solution. The outline thickness is based on the point size of the font, the default ratio is 1/25 (i. whenever memory matters you can use Nov 9, 2014 · Problem is that QLabel background-color is not changed as dynamically on the my gui which is designed. In Qt documentation, I have found out that there are two options how to change font-weight: Oct 8, 2020 · I am trying to find out if there is a way to split the text contained inside a QLabel into multiple labels, one for each character in the text. QLabel { font-size: 14pt;}') Note: Be sure to set the stylesheet before attaching your widgets to its parent, otherwise you would need to manually trigger a style refresh Jun 9, 2019 · QLabel change font color without changing any other style. move(80, 100) Here we are moving the Label widget from it’s default position to (0, 0) on the screen to the 80th X-coordinate and the 100th Y-coordinate. write(redText) # To change it back to black, we manually use `setTextColor` again. Voltage_Label] if you are creating a font object every time you iterate over an item of self. @mahd96. 输出 : PyQt5 - 如何改变预先存在的标签的文本 | setText方法 在GUI应用程序中，需要使用PyQt5中的标签来显示信息，但有时也需要改变标签的文本，在本教程中我们将看到如何做到这一点。. Ensure the label object containing the link is selected, Locate the openExternalLinks property within the QLabel Group in the Property Editor (you can type open into the Property Editor filter field), Set property openExternalLinks to True (checked). Dec 12, 2014 · I'm curious to know why you spent all that time on this answer, when you'd already been given a one-line solution to your original question. 语法： label. e. Python Qt and multi row qlabel. ~E. ekhumoro. Oct 10, 2020 · You can set the OutlinedLabel fill and outline color with setBrush and setPen. Paint application Qt. Jul 18, 2017 · If I try QmessageBox . May 4, 2017 · How can I set button background colours in Qt, even overriding the platform theme? 1 Change background colour of PyQt5 QPushButton without losing the default button style Feb 10, 2016 · The text of a QLabel can be made selectable by mouse like so: label->setTextInteractionFlags(Qt::TextSelectableByMouse); This is found in the QLabel documentation. I made all the changes you told me to do, the project is looking pretty much organized, but now i am getting this output: Jun 2, 2020 · In my code, use one QLabel with fixed dimension/size. But if you use that to set a QPixmap it overrides your text. This CSS will only apply to QLabel objects which are children or grand children of a YourContainerClassWidget object. Your button is emiting a clicked signal but nothing else and your qlabel slot settext (QString) is expecting a Qstring from Apr 29, 2015 · But keep in mind that you have to tweak the width and height of your QLabel, in order for it to look the same as QAction does. in side of programming I use together with QPalette on the QT 5. Label extends Text with styling and font inheritance. The text will be interpreted either as plain text or as rich text, depending on the text format setting; see setTextFormat() . show() sys. setText("the text") # then set the new color "Trial#1 (Not Aug 29, 2012 · How to set a image in QLabel, QT? 1. 0 margin's behavior had to be preserved in Qt 4. setColor(QtGui. QFont("Times", 8, QtGui. Mar 26, 2020 · In this article, we will see how to change the font and size of the text in Label, we can do this by using setFont() method. setLabelsBrush(QBrush(Qt::red)); But this sets the same color for all the labels. end how add background if I use global setting for all. See setFontWeight for bold, setFontItalic for italic and setFontUnderline for underline. I am trying to use setStyleSheet function but it doesn't work. Tried using axisY. format('This is a valid text')) textEdit. exec_()) Additionally, if you want to color code the text for each new lines, QTextEdit has a textChanged signal, you can connect it to a method where you read the new line from QTextEdit and check for the validity of the text, and set the color accordingly. Next, add the font file you downloaded to our QFontDatabase using the addApplicationFont() function. It seems there are some oddities like this in the stylesheet and palette system so keep your eyes out for them and try a few different things (i. Feb 24, 2016 · 4. Jan 8, 2022 · 0. setFrameShadow(QFrame. both must have the same parameter. Also if the text changes, the 'border' should stay the same: Furthermore it should still be possible to set the background color of the QLabel via a QStylesheet or some other API. setBold is a method of QFont: it needs an instance of QFont. Feb 21, 2022 · second, QLabel that has a default text color (e. The default setting is Qt::AutoText; i. 20. The text overwrite is not visible when the the tab / form is first displayed, but when navigating back from another tab or just updating the label values. Label can also have a visual background item. Is there any way to use QColor somehow to achieve desired? Thanks Setting the text clears any previous content. QLabel의 텍스트 색과 배경색을 변경하려면 다음과 같이한다. QLabel it's change font for all form/windows. QLabel will try to auto-detect the format of the text set. Oct 12, 2013 · Setting colour of text in QT QLabel Is there a simple means for setting the colour of text in a QLabel widget? There doesn't seem to be a property for this and the documentation only mentions text colour in the context of displaying small rich text documents. Below is the implementation. Simply pass in the file path, or file name of the Font File into this function, and it will be ready Mar 31, 2012 · If you define a QColor with alpha of 0 you will get background with transparent color, so for example: QColor bg_color(255, 0, 0, 0); QPalette p(l. First, get the color selected using QColorDialog, and then set the style sheet of the label as it is shown below: QColor clr = QColorDialog::getColor(Qt::white, this); Dec 29, 2016 · 7. Related. The 4. Qt CSS syntax allows you to select children for the CSS rules ( Qt doc ), but it is based on the parentship of QObjects not in which class contains pointers to the QLabel. setText (Info) 参数： 它 Dec 8, 2011 · When openExternalLinks() is true and the text interaction flags are set apprpriately, QDesktopServices::openUrl() is triggered carrying the URL of the label. The default is white text with a black outline. In fact, nothing I enter has changed a single pixel in my Hello World widget. That is mostly due to the fact that strings are immutable types (so, styleSheet can never be affected by any change in color), but also because there's no dynamic relation between color and styleSheet. But the moment I set custom content like this: myQEdit->setDocument(new QTextDocument(str)); Nov 15, 2013 · I want to change the labels once the user logs in to the program. Subclassing QLabel to show native 'Mouse Hover Button indicator' 0. setForeground(Color. Apr 26, 2016 · How can I make my buttons - of a background color and text color that I don't know, but the button does - have that "disabled look" ? (Note - the color update works on disabled items too - that is not really complicated though - whatever style sheet I apply on setting widget disabled can be applied in the colorUpdate function). Use setOutlineThickness to change it. The docs are helpful) QLabel *label = new QLabel(this); label->setFrameStyle(QFrame::Panel | QFrame::Sunken); label->setText("first line\nsecond line"); label->setAlignment(Qt::AlignBottom | Qt::AlignRight); //Here is how to change position: label May 12, 2017 · 1 Answer. For example: Text to be written in QLabel: 00-01-02-03-04-05 Feb 27, 2019 · replied to mahd96 on 27 Feb 2019, 04:34. For example, we change the border to grey and the chunk to cerulean. setText(nom_plan_vignette) nom_plan_label. Feb 19, 2021 · I trying to set gradient color for QLabel text. Sep 6, 2016 · You need to create an instance of QLabel, like this: (Here is the example from the docs. Edit: Ok, I managed to change the colour of the label by creating a new palette for it, but I want to change the colour of the text only, not whole labels. This might be an easy question, but I'm trying to give a color to a specific QLabel in my application and it doesn't work. Mar 21, 2014 · I'm trying to change the style of my QLabel using a dynamic property since we can target this property in QSS like this: QLabel[foo = "warning"]{ color: red; } QLabel[foo = "success"]{ color: green; } the stye of my label does update when I use the QApplication::setStyleSheet() but does not seems to work when I change the value of the property. Note that self. void MyClass::setTitle(const QString& text) {. You can use that same function to make links selectable by keyboard, highlight URL links, and make the text editable. self. repaint () # method to search directories goes here self. They are still different concepts within the setting of QLabel. setTextColor(blackColor) blackText = "And this text black". Using Qt 5. 19. May 7, 2024 · PyQt5 Interactive QLabel Widgets. edited May 12, 2017 at 4:48. python Mar 26, 2012 · label->setText ( "Ready. I am trying to set a font color on a QLabel to a hex value received from the server. 0. . setFont (QFont (font_name, size)) Argument : It take two argument : 1. Jan 30, 2019 · 2. See also Layout Management. setStyle(QtGui. Sample code: // label. Apr 28, 2017 · I want to set background-color of a part of text in QLabel differently. label. ("QLabel {background-color: blue; color: red Oct 7, 2014 · Instead it should have a padding of something like 10px to the displayed text. Mar 28, 2014 · Assuming the signal from the Worker class has been connected to a slot in an object on the main thread, such as QMainWindow, you'd receive the text in the slot and update the label: - void QMainWindow::UpdateLabel(const QString text) { ui->label->setText(text); } Jan 4, 2016 · QLabels allow writing and displaying HTML codes so one way of setting a QLabel’s color would be by setting the color as it is done in HTML but in Qt there is another way. Foreground, self. but there are a few possibilities to achieve what you want: use the html-capabilities of the QLabel to display text+image; use two labels, one with the text and one with the image; paint the component yourself Sep 2, 2021 · textEdit. If this foreground color is not the default WindowText color of the palette, that means a specific color is set and this specific color is used for the highlighted text color. Note that the "border: 1px" specifier must be removed from the style sheet otherwise it will be used in preference to the specified line width. setLineWidth(3) Where I've just hardwired the line width. Qt: showing text under the mouse cursor when over a Feb 2, 2007 · Hi, I want to change (1) background color for a QPushbutton (2) color of text for QPushbutton (3) background color of Qlabel (4) color of text for QLabel. create('Cleanlooks')) Unfortunately, this changed nothing. ] answered Mar 4, 2021 at 19:52. How to decrease the font size of the QLabel, and display full text with that particular area/size (without any cut off / hidde /hidden) ? May 3, 2018 · I want to change the color of the markers (text of the categories) themselves, not the ticks. label = QLabel( "Hello, World!" # set the style sheet to change the text color to red. Bold) [label. You can't call directly QtGui. Change QLabel color using python code not html? 1. QtGUI. highlight(). Mar 22, 2016 · 48. In this section we want to focus on creating QLabel widgets with interactive features such as hyperlinks and tooltips in PyQt5. # run the QT application. setText("Hello World!"); label. See QAbsractScrollArea to style scrollable backgrounds. QStyleFactory. Once you have the palette I guess you could retrieve the color via: ColorRole r = QPalette::Text; const QBrush & QPalette::brush(r); Once you have the QBrush you can simply use: const QColor & QBrush::color() const. To create a label widget, you follow these steps: First, import the QLabel widget from PyQt6. 67. Sep 15, 2014 · It's quite well documented how to make line edit widget read only, but if I want to make it even more obvious, i. in the UI editor click on "Change Palette" and play around with that, if you need to do that in c++ you can change the color in the UI file and copy the generated c++ code from the *_ui. 1. answered Mar 22, 2016 at 15:38. CENTER); title. The QLabel accepts rich text so you can process the text in the QLineEdit and replace key words with the HTML needed to display the text in the way you want it. answered Jun 13, 2010 at 8:00. Voltage_Label it will cost you some memory. While i didnt change the content programmatically, the desired color was used. Is this a fundamental limitation of the Qt styling, or am I doing something wrong? I can get it to change the style of the whole QLabel, using QLabel as a selector, but I want different parts of it to be styled differently. Nov 26, 2009 · Answering myself, here is what I ended up doing : a delegate. Not all attributes are supported, see comments for each tag. "QLabel { color: %s}" % ('green' if text else 'red'))) answered Oct 28, 2016 at 23:02. Here is the piece of the code: The color and background of selected text is styled using selection-color and selection-background-color respectively. a 25pt font will have a 1px thick outline). setStylesheet(" color: red;"); If debugging is the process of removing software bugs, then programming must be the process of putting them in. But I suspect that your continuing difficulties on this subject stem from a failure to understand what the various color roles do - in particular, Background and Foreground (which are both obsolete) aren't used in the way that you think they are (you Nov 23, 2017 · I would like to have my text in QLabel somewhere between bold and normal style and I believe that setting font-weight should be the answer to my problem. setBold(True)) wouldn't work either, because Jan 19, 2023 · If you consider the above, both the print statements will return the same value: changing color doesn't change styleSheet. You have to first create the QFont object, then set it to bold, then set it as the label's font. First import the QFont and QFontDatabase Classes from PyQt6. But, with this simple QSS code I get the label's text to be blue, and red when hovered. pixelSize:22 font. I only want to change background of particular text. QDialog { border-image: url(':/images/image') 0 0 0 0 stretch stretch; } it's set , but how set only for this QMessageBoxes. stat_name, None)) Jun 25, 2014 · The stylesheet specifies the padding. May 10, 2020 · Color effect is not like background color it is more like of colored filters we use on pictures. If you want to manage the text color of QLabel you could wrap it with customized class. The text will be interpreted either as plain text or as rich text, depending on the text format setting; see setTextFormat(). Return : It returns None. Aug 16, 2020 · So in your case, to apply to all widgets in your application you can do the following to set the font size of all QLabel instances: app = QApplication([]) app. A minimal example: May 27, 2019 · The label will appear as just a text on the screen. Aug 18, 2020 · When the textEdited signal is emitted, use it to update the text of the QLabel. Firstly I have added 3 slider (for RGB in range (0-255)) to gui and then QLabel. Setting the text clears any previous content. Apr 22, 2011 · So I decided to set the color of my QTextEdit from the designer itself - by specifying my custom color in the option to set the raw html content of the QTextEdit. The code you wrote above will never work properly there, as the checked arg is considered positional. The visual outcome is due to both. PyQt - Create QLabels at Dec 14, 2013 · 4. Jul 23, 2015 · I am developing calculator using qt framework. Jan 28, 2017 · QLabel: set color of text and background. [This property is set to False by default. You can set the color of a JLabel by altering the foreground category: JLabel title = new JLabel("I love stackoverflow!", JLabel. Sorted by: Reset to default. warning->setStyleSheet("font-weight: bold; color: red"); Qt supports most CSS styles on its QWidget -derived classes. Font name it can be ‘Arial’, ‘Times’ etc. For the Color use QPallete, then use {your palette}. italic:true } See also Customizing Label. For example: ColorLabel(const QString &text, QWidget *parent = nullptr) : QLabel(text, parent) setAutoFillBackground(true); void setTextColor(const QColor &color) QPalette palette = this->palette(); The textChanged signal sends the text as a parameter, so you can use that to switch between colours: myQLineEdit. 2, so as not to break existing code. I am setting the text of label to something but it is not visible in the Label. selectors, pseudo-states, etc. If no text has been set this will return an empty string. tg ld cc mu gj hn mf jt gd gx