IDirect3DDevice9::BeginStateBlock Method

Signals Microsoft?Direct3D?to begin recording a device-state block.

Syntax

HRESULT BeginStateBlock(VOID);

Return Value

If the method succeeds, the return value is D3D_OK.

If the method fails, the return value can be one of the following values.

D3DERR_INVALIDCALL	The method call is invalid. For example, a method's parameter may have an invalid value.
E_OUTOFMEMORY	Direct3D could not allocate sufficient memory to complete the call.

Remarks

Applications can ensure that all recorded states are valid by calling the IDirect3DDevice9::ValidateDevice method prior to calling this method.

The following methods can be recorded in a state block, after calling IDirect3DDevice9::BeginStateBlock and before IDirect3DDevice9::EndStateBlock.

• IDirect3DDevice9::LightEnable
• IDirect3DDevice9::SetClipPlane
• IDirect3DDevice9::SetIndices
• IDirect3DDevice9::SetLight
• IDirect3DDevice9::SetMaterial
• IDirect3DDevice9::SetPixelShader
• IDirect3DDevice9::SetPixelShaderConstantB
• IDirect3DDevice9::SetPixelShaderConstantF
• IDirect3DDevice9::SetPixelShaderConstantI
• IDirect3DDevice9::SetRenderState
• IDirect3DDevice9::SetStreamSource
• IDirect3DDevice9::SetTexture
• IDirect3DDevice9::SetTextureStageState
• IDirect3DDevice9::SetTransform
• IDirect3DDevice9::SetViewport
• IDirect3DDevice9::SetVertexShader
• IDirect3DDevice9::SetVertexShaderConstantB
• IDirect3DDevice9::SetVertexShaderConstantF
• IDirect3DDevice9::SetVertexShaderConstantI

The ordering of state changes in a state block is not guaranteed. If the same state is specified multiple times in a state block, only the last value is used.

See Also

IDirect3DDevice9::EndStateBlock, IDirect3DDevice9::CreateStateBlock