D3DDEVICEDESC_V1 structure (d3dhal.h)
D3DDeviceDesc_V1 is obsolete in DirectX 8.0 and later versions; see Remarks. This structure describes the 3D capabilities of a device.
Syntax
typedef struct _D3DDeviceDesc_V1 {
DWORD dwSize;
DWORD dwFlags;
D3DCOLORMODEL dcmColorModel;
DWORD dwDevCaps;
D3DTRANSFORMCAPS dtcTransformCaps;
BOOL bClipping;
D3DLIGHTINGCAPS dlcLightingCaps;
D3DPRIMCAPS dpcLineCaps;
D3DPRIMCAPS dpcTriCaps;
DWORD dwDeviceRenderBitDepth;
DWORD dwDeviceZBufferBitDepth;
DWORD dwMaxBufferSize;
DWORD dwMaxVertexCount;
} D3DDEVICEDESC_V1, *LPD3DDEVICEDESC_V1;
Members
dwSize
Specifies the size in bytes of this D3DDEVICEDESC_V1 structure.
dwFlags
Identifies the members of this structure that contain valid data. This member can be a bitwise OR of any of the following values:
| Value | Meaning |
|---|---|
| D3DDD_BCLIPPING | The bClipping member contains valid data. |
| D3DDD_COLORMODEL | The dcmColorModel member contains valid data. |
| D3DDD_DEVCAPS | The dwDevCaps member contains valid data. |
| D3DDD_DEVICERENDERBITDEPTH | The dwDeviceRenderBitDepthmember contains valid data. |
| D3DDD_DEVICEZBUFFERBITDEPTH | The dwDeviceZBufferBitDepthmember contains valid data. |
| D3DDD_LIGHTINGCAPS | The dlcLightingCaps member contains valid data. |
| D3DDD_LINECAPS | The dpcLineCaps member contains valid data. |
| D3DDD_MAXBUFFERSIZE | The dwMaxBufferSize member contains valid data. |
| D3DDD_MAXVERTEXCOUNT | The dwMaxVertexCount member contains valid data. |
| D3DDD_TRANSFORMCAPS | The dtcTransformCaps member contains valid data. |
| D3DDD_TRICAPS | The dpcTriCaps member contains valid data. |
dcmColorModel
Specifies the device's color model.
dwDevCaps
Identifies the capabilities of the device. This member can be a bitwise OR of any of the following values:
| Value | Meaning |
|---|---|
| D3DDEVCAPS_CANBLTSYSTONONLOCAL | The device supports a TexBlt from system memory to sublocal video memory. |
| D3DDEVCAPS_CANRENDERAFTERFLIP | The device can queue rendering commands after a page flip. Devices must support this capability on Windows 2000 and later, meaning that the driver would always set this flag. |
| D3DDEVCAPS_DRAWPRIMITIVES2 | The device can support D3dDrawPrimitives2 . |
| D3DDEVCAPS_DRAWPRIMITIVES2EX | The device can support Extended D3dDrawPrimitives2 ; i.e. a DX7-compliant driver. |
| D3DDEVCAPS_DRAWPRIMTLVERTEX | The device can draw TLVERTEX primitives. This flag is obsolete but must be set by the driver. |
| D3DDEVCAPS_EXECUTESYSTEMMEMORY | The device can use execute buffers from system memory. The driver must always set this bit. |
| D3DDEVCAPS_EXECUTEVIDEOMEMORY | The device can use execute buffers from display memory. The driver must never set this bit. |
| D3DDEVCAPS_FLOATTLVERTEX | The device accepts floating-point for posttransform vertex data. This flag is obsolete but must be set by the driver. |
| D3DDEVCAPS_HWRASTERIZATION | The device has hardware acceleration for rasterization. |
| D3DDEVCAPS_HWTRANSFORMANDLIGHT | The device can support transformation and lighting in hardware. D3DDEVCAPS_DRAWPRIMITIVES2EX must also be set. |
| D3DDEVCAPS_SEPARATETEXTUREMEMORIES | The device is texturing from separate memory pools. Setting this capability bit indicates to DirectX 8.0 and later versions of applications that they are disabled from simultaneously using multiple textures. |
| D3DDEVCAPS_SORTDECREASINGZ | The device needs data sorted for decreasing depth. |
| D3DDEVCAPS_SORTEXACT | The device needs data sorted exactly. |
| D3DDEVCAPS_SORTINCREASINGZ | The device needs data sorted for increasing depth. |
| D3DDEVCAPS_TEXTURENONLOCALVIDEOMEMORY | The device can texture from nonlocal video memory. |
| D3DDEVCAPS_TLVERTEXSYSTEMMEMORY | The device can use buffers from system memory for transformed and lit vertices. This flag is obsolete but must be set by the driver. |
| D3DDEVCAPS_TLVERTEXVIDEOMEMORY | The device can use buffers from display memory for transformed and lit vertices. This flag is obsolete and must not be set by the driver. |
| D3DDEVCAPS_TEXTURESYSTEMMEMORY | The device can retrieve textures from system memory. |
| D3DDEVCAPS_TEXTUREVIDEOMEMORY | The device can retrieve textures from device memory. |
dtcTransformCaps
Specifies a D3DTRANSFORMCAPS structure that specifies the transformation capabilities of the device. The driver must set the dwCaps member of that structure to zero.
bClipping
Set to TRUE by the driver if the device can perform 3D clipping.
dlcLightingCaps
Specifies the lighting capabilities of the device. This is a D3DLIGHTINGCAPS structure. The driver must set the dwCaps, dwLightingModel, and dwNumLights members of that structure to zero.
dpcLineCaps
Specifies a D3DPRIMCAPS structure that defines the drawing capabilities of the device for line primitives.
dpcTriCaps
Specifies a D3DPRIMCAPS structure that defines the drawing capabilities of the device for triangle primitives.
dwDeviceRenderBitDepth
Specifies the device's rendering bit-depth. This member can be a bitwise OR of the following DirectDraw bit-depth constants: DDBD_8, DDBD_16, DDBD_24, or DDBD_32.
dwDeviceZBufferBitDepth
Specifies the device's z-buffer bit-depth. This member can be a bitwise OR of the following DirectDraw bit-depth constants: DDBD_8, DDBD_16, DDBD_24, or DDBD_32.
dwMaxBufferSize
Must be set to zero.
dwMaxVertexCount
DirectX 7 and later versions
DirectX 6
Remarks
This structure has been replaced by D3DCAPS8 (see the DirectX 8.0 SDK documentation) for DirectX 8.0 and later runtimes, but is required for legacy runtime (DirectX 7.0 and earlier) compatibility. See Reporting DirectX 8.0 Style Direct3D Capabilities for details.
The driver's DrvGetDirectDrawInfo function returns this information in the D3DHAL_GLOBALDRIVERDATA structure that the lpD3DGlobalDriverData member of the DD_HALINFO structure points to.
The Direct3D runtime constructs the application-level D3DDEVICEDESC7 structure (documented in the Microsoft Windows SDK documentation) from the information returned in the D3DDEVICEDESC_V1 structure and the extended capabilities queried through the driver's DdGetDriverInfo function. While some of the dwDevCaps flags are obsolete at the driver level, the driver must set them appropriately in order for applications to work correctly.
Requirements
| Requirement | Value |
|---|---|
| Header | d3dhal.h (include D3dhal.h) |
See also
Feedback
Coming soon: Throughout 2024 we will be phasing out GitHub Issues as the feedback mechanism for content and replacing it with a new feedback system. For more information see: https://aka.ms/ContentUserFeedback.
Submit and view feedback for