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PyQt - QSlider Widget & Signal - QSlider class object presents the user with a groove over which a handle can be moved. It is a classic widget to control a bounded value. Position of the handle.
QSlider class object presents the user with a groove over which a handle can be moved. It is a classic widget to control a bounded value. Position of the handle on the groove is equivalent to an integer between the lower and the upper bounds of the control.
A slider control can be displayed in horizontal or vertical manner by mentioning the orientation in the constructor.
The following table lists some of the frequently used methods of QSlider class −
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Sr.No. | Methods & Description | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | setMinimum() Sets the lower bound of the slider | ||||||||||||
2 | setMaximum() Sets the upper bound of the slider | ||||||||||||
3 | setSingleStep() Sets the increment/decrement step | ||||||||||||
4 | Muscogee creek nation casino holdenville. setValue() Sets the value of the control programmatically | ||||||||||||
5 | value() Returns the current value | ||||||||||||
6 | setTickInterval() Puts the number of ticks on the groove Previous to the vote, Arkansas law meant that Southland could only have electronic versions of those popular games.Located across the Mississippi River in West Memphis, Arkansas, Southland is currently undergoing a 1/4 billion dollar expansion. The greyhound racetrack is one of the largest, and oldest in the nation. Southland’s New GamesHowever thanks to a new initiative passed by Arkansas voters in 2018, Southland now has more traditional casino games, such as live blackjack and craps with dice. ![]() | ||||||||||||
7 | setTickPosition() ![]() Places the ticks on the groove. Values are −
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QSlider Signals
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Sr.No. | Methods & Description |
---|---|
1 | valueChanged() When the slider's value has changed |
2 | sliderPressed() When the user starts to drag the slider |
3 | sliderMoved() When the user drags the slider |
4 | sliderReleased() When the user releases the slider |
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valueChanged() signal is the one which is most frequently used.
Example
The following example demonstrates the above functionality. A Label and a horizontal slider is placed in a vertical layout. Slider’s valueChanged() signal is connected to valuechange() method.
The slot function valuechange() reads current value of the slider and uses it as the size of font for label’s caption.
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The complete code is as follows −
The above code produces the following output −
The font size of the label changes as handle of the slider is moved across the handle.