Qt for HarmonyOS/qtohosextras doc/Keep Screen On Example: Difference between revisions
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The main window contains a checkbox. Toggling it calls QtOhosExtras::setWindowKeepScreenOn() with the window and the checkbox state, so the screen stays awake while the box is checked and the request is released when it is unchecked. The setting is tied to the given window. | The main window contains a checkbox. Toggling it calls QtOhosExtras::setWindowKeepScreenOn() with the window and the checkbox state, so the screen stays awake while the box is checked and the request is released when it is unchecked. The setting is tied to the given window. | ||
<syntaxhighlight lang="cpp"> | |||
QCheckBox keepScreenOnCheckBox("Keep on", &window); | |||
QObject::connect( | |||
&keepScreenOnCheckBox, &QCheckBox::stateChanged, &window, | |||
[window = &window](int state) { | |||
QtOhosExtras::setWindowKeepScreenOn(window, state == Qt::Checked); | |||
}); | |||
</syntaxhighlight> | |||
* [[Qt_for_HarmonyOS/qtohosextras_doc/Keep_Screen_On_Example|keepscreenon/main.cpp]] | * [[Qt_for_HarmonyOS/qtohosextras_doc/Keep_Screen_On_Example|keepscreenon/main.cpp]] | ||
[[Category:Qt for HarmonyOS]] | [[Category:Qt for HarmonyOS]] | ||
Revision as of 10:13, 16 September 2026
< Qt for HarmonyOS / qtohosextras doc
Keep Screen On Example
Demonstrates keeping the screen on while a window is displayed.
The main window contains a checkbox. Toggling it calls QtOhosExtras::setWindowKeepScreenOn() with the window and the checkbox state, so the screen stays awake while the box is checked and the request is released when it is unchecked. The setting is tied to the given window.
QCheckBox keepScreenOnCheckBox("Keep on", &window);
QObject::connect(
&keepScreenOnCheckBox, &QCheckBox::stateChanged, &window,
[window = &window](int state) {
QtOhosExtras::setWindowKeepScreenOn(window, state == Qt::Checked);
});