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Access functions: See also set Text Format(), set Buddy(), and alignment. Specifies how the label should interact with user input if it displays text. Sets the label contents to plain text containing the textual representation of double num. Does nothing if the double's string representation is the same as the current contents of the label. See also set Text(), QString::set Num(), and set Buddy(). Selects text from position start and for length characters.
This property holds the label's text format See the Qt:: Text Format enum for an explanation of the possible options. If the flags contain Qt:: Links Accessible By Keyboard the focus policy is also automatically set to Qt:: Strong Focus. Sets the label contents to plain text containing the textual representation of integer num. Does nothing if the integer's string representation is the same as the current contents of the label. See also set Text(), QString::set Num(), and set Buddy(). Note: The text Interaction Flags set on the label need to include either Text Selectable By Mouse or Text Selectable By Keyboard.
A QLabel is often used as a label for an interactive widget.
For this use QLabel provides a useful mechanism for adding an mnemonic (see QKey Sequence) that will set the keyboard focus to the other widget (called the QLabel's "buddy").
See also set Alignment(), set Frame Style(), and set Indent(). This signal is emitted when the user clicks a link. This signal is emitted when the user hovers over a link.
The URL referred to by the anchor is passed in link. The URL referred to by the anchor is passed in link.
QText Edit can also provide a scroll bar when necessary. To unset a previously set buddy, call this function with buddy set to nullptr.
By default, labels display left-aligned, vertically-centered text and images, where any tabs in the text to be displayed are automatically expanded.
A QLabel can contain any of the following content types: Warning: When passing a QString to the constructor or calling set Text(), make sure to sanitize your input, as QLabel tries to guess whether it displays the text as plain text or as rich text, a subset of HTML 4 markup.
The visual appearance of the label can be configured in various ways, and it can be used for specifying a focus mnemonic key for another widget.
For example: In this example, keyboard focus is transferred to the label's buddy (the QLine Edit) when the user presses Alt P.
If the buddy was a button (inheriting from QAbstract Button), triggering the mnemonic would emulate a button click. This property holds the label's text indent in pixels If a label displays text, the indent applies to the left edge if alignment() is Qt:: Align Left, to the right edge if alignment() is Qt:: Align Right, to the top edge if alignment() is Qt:: Align Top, and to the bottom edge if alignment() is Qt:: Align Bottom.
This property holds the width of the margin The margin is the distance between the innermost pixel of the frame and the outermost pixel of contents. Note: The text Interaction Flags set on the label need to include either Links Accessible By Mouse or Links Accessible By Keyboard. This property holds the label's pixmap If no pixmap has been set this will return nullptr. When enabled and the label shows a pixmap, it will scale the pixmap to fill the available space. Access functions: This property holds the selected text If there is no selected text this property's value is an empty string.