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qt'QPaintDeviceMetrics (./qt-2.1.0/src/kernel/qpaintdevicemetrics.h:35)

class Q_EXPORT QPaintDeviceMetrics			// paint device metrics
{
public:
    QPaintDeviceMetrics( const QPaintDevice * );

    enum {
	PdmWidth = 1,
	PdmHeight,
	PdmWidthMM,
	PdmHeightMM,
	PdmNumColors,
	PdmDepth,
	PdmDpiX,
	PdmDpiY
    };

    int	  width()	const	{ return (int)pdev->metric(PdmWidth); }
    int	  height()	const	{ return (int)pdev->metric(PdmHeight); }
    int	  widthMM()	const	{ return (int)pdev->metric(PdmWidthMM); }
    int	  heightMM()	const	{ return (int)pdev->metric(PdmHeightMM); }
    int	  logicalDpiX()	const	{ return (int)pdev->metric(PdmDpiX); }
    int	  logicalDpiY()	const	{ return (int)pdev->metric(PdmDpiY); }
    int	  numColors()	const	{ return (int)pdev->metric(PdmNumColors); }
    int	  depth()	const	{ return (int)pdev->metric(PdmDepth); }

private:
    QPaintDevice *pdev;
};

qt'QPaintDeviceMetrics::QPaintDeviceMetrics() (./qt-2.1.0/src/kernel/qpaintdevicemetrics.cpp:62)

QPaintDeviceMetrics::QPaintDeviceMetrics( const QPaintDevice *pd )
{
    pdev = (QPaintDevice *)pd;
}


/*!
  \fn int QPaintDeviceMetrics::width() const

  Returns the width of the paint device, in default coordinate system
  units (e.g. pixels for QPixmap and QWidget).
*/

/*!
  \fn int QPaintDeviceMetrics::height() const

  Returns the height of the paint device, in default coordinate system
  units (e.g. pixels for QPixmap and QWidget).
*/

/*!
  \fn int QPaintDeviceMetrics::widthMM() const
  Returns the width of the paint device, measured in millimeters.
*/

/*!
  \fn int QPaintDeviceMetrics::heightMM() const
  Returns the height of the paint device, measured in millimeters.
*/

/*!
  \fn int QPaintDeviceMetrics::numColors() const
  Returns the number of different colors available for the paint device.
*/

/*!
  \fn int QPaintDeviceMetrics::depth() const
  Returns the bit depth (number of bit planes) of the paint device.
*/

/*!
  \fn int QPaintDeviceMetrics::logicalDpiX() const

  Returns the horizontal resolution of the device, in dots per inch, that is
  used when computing font sizes.
  For X this is usually the same as could be computed
  from widthMM(), but on Windows this varies.
*/

/*!
  \fn int QPaintDeviceMetrics::logicalDpiY() const

  Returns the vertical resolution of the device, in dots per inch, that is
  used when computing font sizes.
  For X this is usually the same as could be computed
  from heightMM(), but on Windows this varies.
*/