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D2D1_LAYER_OPTIONS1 enumeration (d2d1_1.h)

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Specifies how the layer contents should be prepared.

Syntax

typedef enum D2D1_LAYER_OPTIONS1 {
  D2D1_LAYER_OPTIONS1_NONE = 0,
  D2D1_LAYER_OPTIONS1_INITIALIZE_FROM_BACKGROUND = 1,
  D2D1_LAYER_OPTIONS1_IGNORE_ALPHA = 2,
  D2D1_LAYER_OPTIONS1_FORCE_DWORD = 0xffffffff
} ;

Constants

 
D2D1_LAYER_OPTIONS1_NONE
Value: 0
Default layer behavior. A premultiplied layer target is pushed and its contents are cleared to transparent black.
D2D1_LAYER_OPTIONS1_INITIALIZE_FROM_BACKGROUND
Value: 1
The layer is not cleared to transparent black.
D2D1_LAYER_OPTIONS1_IGNORE_ALPHA
Value: 2
The layer is always created as ignore alpha. All content rendered into the layer will be treated as opaque.
D2D1_LAYER_OPTIONS1_FORCE_DWORD
Value: 0xffffffff

Requirements

Requirement Value
Header d2d1_1.h