IDCompositionTexture::SetAlphaMode method (dcomp.h)
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Informs the Desktop Window Manager (DWM) whether alpha pixels in the texture should be honored or ignored.
Syntax
HRESULT SetAlphaMode(
DXGI_ALPHA_MODE alphaMode
);
Parameters
alphaMode
Type: _In_ DXGI_ALPHA_MODE
Indicates whether alpha pixels in the texture should be honored or ignored.
| Value | Meaning |
|---|---|
| DXGI_ALPHA_MODE_UNSPECIFIED | The alpha channel isn't specified. This value has the same effect as DXGI_ALPHA_MODE_IGNORE. |
| DXGI_ALPHA_MODE_PREMULTIPLIED | The color channels contain values that are premultiplied with the alpha channel. |
| DXGI_ALPHA_MODE_IGNORE | The alpha channel should be ignored, and the bitmap should be rendered opaquely. |
Return value
Type: HRESULT
If the function succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
Requirements
| Requirement | Value |
|---|---|
| Header | dcomp.h |