Qt Mobility Reference Documentation

QSystemDisplayInfo Class Reference

The QSystemDisplayInfo class provides access to display information from the system. More...

 #include <QSystemDisplayInfo>

Public Types

enum DisplayOrientation { Unknown, Landscape, Portrait, InvertedLandscape, InvertedPortrait }

Public Functions

QSystemDisplayInfo ( QObject * parent = 0 )
~QSystemDisplayInfo ()
float contrast ( int screen )
int getDPIHeight ( int screen )
int getDPIWidth ( int screen )
QSystemDisplayInfo::DisplayOrientation getOrientation ( int screen )
int physicalHeight ( int screen )
int physicalWidth ( int screen )

Static Public Members

int colorDepth ( int screenNumber )
int displayBrightness ( int screenNumber )

Detailed Description

The QSystemDisplayInfo class provides access to display information from the system.


Member Type Documentation

enum QSystemDisplayInfo::DisplayOrientation

This enum describes the current orientation of the display.

ConstantValueDescription
QSystemDisplayInfo::Unknown0Orientation could not be determined.
QSystemDisplayInfo::Landscape1Orientation is in landscape.
QSystemDisplayInfo::Portrait2Orientation is in portrait.
QSystemDisplayInfo::InvertedLandscape3Orientation is landscape inverted.
QSystemDisplayInfo::InvertedPortrait4Orientation is portrait inverted.

Member Function Documentation

QSystemDisplayInfo::QSystemDisplayInfo ( QObject * parent = 0 )

Constructs a QSystemDisplayInfo object with the given parent.

QSystemDisplayInfo::~QSystemDisplayInfo ()

Destroys the QSystemDisplayInfo object.

int QSystemDisplayInfo::colorDepth ( int screenNumber ) [static]

Returns the color depth of the screen with the index screenNumber, in bits per pixel.

See also QDesktopWidget::screenCount().

float QSystemDisplayInfo::contrast ( int screen )

Returns the current contrast of the screen screen.

See also QDesktopWidget::screenCount().

int QSystemDisplayInfo::displayBrightness ( int screenNumber ) [static]

Returns the display brightness of the screen with index screenNumber in %, 1 - 100 scale.

Depending on platform, displayBrightness may not be available due to differing hardware, software or driver implementation. In which case this will return 0.

See also QDesktopWidget::screenCount().

int QSystemDisplayInfo::getDPIHeight ( int screen )

Returns the dpi (Dot Per Inch) of the height os screen.

See also QDesktopWidget::screenCount().

int QSystemDisplayInfo::getDPIWidth ( int screen )

Returns the current dots per inch (DPI) for the width of screen.

See also QDesktopWidget::screenCount().

QSystemDisplayInfo::DisplayOrientation QSystemDisplayInfo::getOrientation ( int screen )

Returns the orientation of the screen.

See also QDesktopWidget::screenCount().

int QSystemDisplayInfo::physicalHeight ( int screen )

Returns the physical height of the screen in millimeters.

See also QDesktopWidget::screenCount().

int QSystemDisplayInfo::physicalWidth ( int screen )

Returns the physical width of screen in millimeters.

See also QDesktopWidget::screenCount().


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Qt Mobility Project 1.1.0