DDRAW_CAPS structure (d3dumddi.h)
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) |