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DDRAW_CAPS structure (d3dumddi.h)

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The DDRAW_CAPS structure describes general Microsoft DirectDraw capabilities that the user-mode display driver supports.

Syntax

typedef struct _DDRAW_CAPS {
  [out] UINT Caps;
  [out] UINT Caps2;
  [out] UINT CKeyCaps;
  [out] UINT FxCaps;
  [out] UINT MaxVideoPorts;
} DDRAW_CAPS;

Members

[out] Caps

A valid bitwise OR of the following general capability bits that the driver supports.

Capability bit Meaning
DDRAW_CAPS_ZBLTS Z-buffers can be used in bit-block transfer (bitblt) operations.
DDRAW_CAPS_COLORKEY Some form of color key can be used in either overlay or bitblt operations. For more specific color key capability information, see the CKeyCaps member.
DDRAW_CAPS_BLTDEPTHFILL Z-buffers can be depth-filled in bitblt operations.

[out] Caps2

A valid bitwise OR of more of the following general capability bits that the driver supports.

Capability bit Meaning
DDRAW_CAPS2_VIDEOPORT A hardware video port can be used.
DDRAW_CAPS2_CANDROPZ16BIT Sixteen-bit RGBZ values can be converted into 16-bit RGB values. (The system does not support 8-bit conversions.)
DDRAW_CAPS2_FLIPINTERVAL The driver responds to the Flip bit-field flag.
DDRAW_CAPS2_FLIPNOVSYNC The driver responds to the FlipWithNoWait bit-field flag.
DDRAW_CAPS2_DYNAMICTEXTURES The driver supports dynamic textures.

[out] CKeyCaps

A valid bitwise OR of the following color key capability bits that the driver supports.

Capability bit Meaning
DDRAW_CKEYCAPS_SRCBLT Transparent bit-block transfers can be performed with a color key that identifies bits of the source surface that are copied to the destination surface.
DDRAW_CKEYCAPS_DESTBLT Transparent bit-block transfers (bitblts) can be performed with a color key that identifies the replaceable bits of the destination surface.

[out] FxCaps

A valid bitwise OR of the following stretching and effects capability bits that the driver supports.

Capability bit Meaning
DDRAW_FXCAPS_BLTMIRRORLEFTRIGHT Bit-block transfers (bitblts) that flip the contents of the source surface to the destination surface horizontally along the center axis can be performed.
DDRAW_FXCAPS_BLTMIRRORUPDOWN Bit-block transfers (bitblts) that flip the contents of the source surface to the destination surface vertically along the center axis can be performed.

[out] MaxVideoPorts

The maximum number of video ports that the device supports.

Requirements

Requirement Value
Minimum supported client Available in Windows Vista and later versions of the Windows operating systems.
Header d3dumddi.h (include D3dumddi.h)

See also

D3DDDIARG_GETCAPS

D3DDDICAPS_TYPE

GetCaps