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QDisplayInfo ClassThe QDisplayInfo class provides various information about the display. More... #include <QDisplayInfo>Inherits: QObject. QDisplayInfo is instantiated by QML element DisplayInfo Public Types
Public Functions
Signals
Additional Inherited Members
Detailed DescriptionThe QDisplayInfo class provides various information about the display. Member Type Documentation
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| Constant | Value | Description |
|---|---|---|
| QDisplayInfo::BacklightUnknown | 0 | The state of the backlight is unknown. |
| QDisplayInfo::BacklightOff | 1 | Backlight is turned off. |
| QDisplayInfo::BacklightDimmed | 2 | Backlight has been dimmed. |
| QDisplayInfo::BacklightOn | 3 | Backlight is on. |
Member Function Documentation
QDisplayInfo::QDisplayInfo(QObject * parent = 0)
Constructs a QDisplayInfo object with the given parent.
QDisplayInfo::~QDisplayInfo() [virtual]
Destroys the object
BacklightState QDisplayInfo::backlightState(int screen) const
Returns the backlight state of the given screen.
void QDisplayInfo::backlightStateChanged(int screen, QDisplayInfo::BacklightState state) [signal]
This signal is emitted when the backlight state for screen has changed to state.
int QDisplayInfo::brightness(int screen) const
Returns the display brightness of the given screen, in 0 - 100 scale. In case of error or the information is not available, -1 is returned.
int QDisplayInfo::colorDepth(int screen) const
Returns the color depth of the given screen, in bits per pixel. -1 is returned if not available or on error.
Please use QScreen::depth() instead.
int QDisplayInfo::contrast(int screen) const
Returns the contrast of the given screen, in 0 - 100 scale. -1 is returned if not available or on error.
int QDisplayInfo::dpiX(int screen) const
Returns the horizontal resolution of the given screen in terms of the number of dots per inch. -1 is returned if not available or on error.
Please use QScreen::logicalDotsPerInchX() instead.
int QDisplayInfo::dpiY(int screen) const
Returns the vertical resolution of the given screen in terms of the number of dots per inch. -1 is returned if not available or on error.
Please use QScreen::logicalDotsPerInchY() instead.
int QDisplayInfo::physicalHeight(int screen) const
Returns the physical height of the screen in millimeters. -1 is returned if not available or on error.
Please use QScreen::physicalSize().height() instead.
int QDisplayInfo::physicalWidth(int screen) const
Returns the physical width of screen in millimeters. -1 is returned if not available or on error.
Please use QScreen::physicalSize().width() instead.