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This effect adjusts the opacity of an image by multiplying the alpha channel of the input by the specified opacity value. It has a single input.
The CLSID for this effect is CLSID_D2D1Opacity.
Effect properties
| Display name and index enumeration | Type and default value | Description |
|---|---|---|
| Opacity D2D1_OPACITY_PROP_OPACITY |
FLOAT1.0f |
The multiplier to the input image's alpha channel. The minimum value is 0.0f and the maximum value is 1.0f. |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 10 [desktop apps | Windows Store apps] |
| Minimum supported server | Windows 10 [desktop apps | Windows Store apps] |
| Header | d2d1effects_2.h |
| Library | d2d1.lib, dxguid.lib |