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Reference for unit 'InterfaceBase' (#lcl)

TWidgetSet.GetDeviceCaps

Returns various device specific information.

Declaration

Source position: winapih.inc line 124

public function TWidgetSet.GetDeviceCaps(

DC: HDC;

Index: Integer

):Integer; virtual;

`DC`		The device context.
`Index`		The value type, e.g. HORZRES.

The requested value.

The following information can be retrieved:

HORZSIZE: Horizontal size in millimeters.
VERTSIZE: Vertical size in millimeters.
HORZRES: Horizontal width in pixels.
VERTRES: Vertical height in pixels.
BITSPIXEL: Number of bits per pixel.
PLANES: Number of color planes.
LOGPIXELSX: The number of pixels per logical inch, in X (horizontal) direction.
LOGPIXELSY: The number of pixels per logical inch, in Y (vertical) direction.
SIZEPALETTE: Number of entries in the color palette.
NUMRESERVED: Number of reserved entries in the color palette.