The IDirect3DDevice::SetMatrix method applies a matrix to a matrix handle. This matrix handle must have been created by using the IDirect3DDevice::CreateMatrix method.
HRESULT SetMatrix(
D3DMATRIXHANDLE d3dMatHandle,
LPD3DMATRIX lpD3DMatrix
);
If the method succeeds, the return value is D3D_OK.
If the method fails, the return value is an error, such as DDERR_INVALIDPARAMS.
Transformations inside the execute buffer include a handle to a matrix. The IDirect3DDevice::SetMatrix method enables an application to change this matrix without having to lock and unlock the execute buffer.
Windows NT/2000: Requires Windows NT 4.0 SP3 or later.
Windows 95/98: Requires Windows 95 or later. Available as a redistributable for Windows 95.
Header: Declared in d3d.h.
Import Library: Use ddraw.lib.
IDirect3DDevice::CreateMatrix, IDirect3DDevice::GetMatrix, IDirect3DDevice::DeleteMatrix