Archived:Lock application orientation in Qt

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Archived: This article is archived because it is not considered relevant for third-party developers creating commercial solutions today. If you think this article is still relevant, let us know by adding the template {{ReviewForRemovalFromArchive|user=~~~~|write your reason here}}.

Qt Quick should be used for all UI development on mobile devices. The approach described in this article (based on QWidget) is deprecated.

This article shows how to lock the screen orientation of Qt apps in Qt 4.7.2 and later. Note that until Qt 4.7.1, on Symbian developers needed to use native code to lock screen orientation, as shown in Archived:Lock application orientation in Qt.

Article Metadata

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Tested with

SDK: Qt SDK 1.1.3

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Compatibility

Platform(s): Qt 4.7.2 and later

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Article

Created: olympio (03 Jun 2011)

Last edited: hamishwillee (11 Oct 2012)

Code

	void MainWindow::setOrientation()
	{	
 
        Qt::WidgetAttribute attribute;
 
        // for portrait
        attribute = Qt::WA_LockPortraitOrientation;
 
        // for landscape
        attribute = Qt::WA_LockLandscapeOrientation;
 
 
	setAttribute(attribute, true);
 
	}

Where MainWindow inherits from QMainWindow. The function setAttribute belongs to QWidget.