IDirect3DDevice2::DrawPrimitive
The IDirect3DDevice2::DrawPrimitive method renders the specified array of vertices as a sequence of geometric primitives of the specified type.
HRESULT DrawPrimitive(
D3DPRIMITIVETYPE dptPrimitiveType,
D3DVERTEXTYPE dvtVertexType,
LPVOID lpvVertices,
DWORD dwVertexCount,
DWORD dwFlags
);
Parameters
dptPrimitiveType
Type of primitive to be rendered by this command. This must be one of the members of the D3DPRIMITIVETYPE enumerated type.
dvtVertexType
Indicates the types of the vertices used. This must be one of the members of the D3DVERTEXTYPE enumerated type.
lpvVertices
Pointer to the array of vertices to be used in the primitive sequence.
dwVertexCount
Defines the number of vertices in the array.
dwFlags
One or more of the following flags defining how the primitive is drawn:
| D3DDP_DONOTCLIP | The application has already done the required clipping, so the system should not necessarily clip the primitives. (This flag is a hint; the system may clip the primitive even when this flag is specified, under some circumstances.) |
| D3DDP_DONOTUPDATEEXTENTS | Disables the updating of the screen rectangle affected by this rendering call. Using this flag can potentially help performance, but the extents returned by IDirect3DDevice2::GetClipStatus will not have been updated to account for the data rendered by this call. |
| D3DDP_OUTOFORDER | A hint to the system that the primitives can be rendered out of order. Note that back-to-back calls to DrawPrimitive methods using this flag may cause triangles from the primitives to be interleaved. The DrawPrimitive methods that use this flag are Begin, BeginIndexed, DrawIndexedPrimitive, and DrawPrimitive. |
| D3DDP_WAIT | Causes the method to wait until the polygons have been rendered before it returns, instead of returning as soon as the polygons have been sent to the card. (On scene-capture cards, the method returns as soon as the card responds.)
This flag is typically used for debugging. Applications should not attempt to use this flag to ensure that a scene is up-to-date before continuing. |
Return Values
If the method succeeds, the return value is DD_OK.
If the method fails, the return value may be one of the following values:
| D3DERR_INVALIDRAMPTEXTURE | Ramp mode is being used and the texture handle in the current material does not match the current texture handle that is set as a render state. |
| DDERR_INVALIDPARAMS | One of the arguments is invalid. |
Remarks
This method was introduced with the IDirect3DDevice2 interface.
QuickInfo
Windows NT: Use version 5.0 or later.
Windows: Use Windows 95 or later. Available as a redistributable for Windows 95.
Windows CE: Unsupported.
Header: Declared in d3d.h.
Import Library: Use ddraw.lib.
See Also