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D2D1_BITMAP_OPTIONS enumeration (d2d1_1.h)

Specifies how a bitmap can be used.

Syntax

typedef enum D2D1_BITMAP_OPTIONS {
  D2D1_BITMAP_OPTIONS_NONE = 0x00000000,
  D2D1_BITMAP_OPTIONS_TARGET = 0x00000001,
  D2D1_BITMAP_OPTIONS_CANNOT_DRAW = 0x00000002,
  D2D1_BITMAP_OPTIONS_CPU_READ = 0x00000004,
  D2D1_BITMAP_OPTIONS_GDI_COMPATIBLE = 0x00000008,
  D2D1_BITMAP_OPTIONS_FORCE_DWORD = 0xffffffff
} ;

Constants

 
D2D1_BITMAP_OPTIONS_NONE
Value: 0x00000000
The bitmap is created with default properties.
D2D1_BITMAP_OPTIONS_TARGET
Value: 0x00000001
The bitmap can be used as a device context target.
D2D1_BITMAP_OPTIONS_CANNOT_DRAW
Value: 0x00000002
The bitmap cannot be used as an input.
D2D1_BITMAP_OPTIONS_CPU_READ
Value: 0x00000004
The bitmap can be read from the CPU.
D2D1_BITMAP_OPTIONS_GDI_COMPATIBLE
Value: 0x00000008
The bitmap works with ID2D1GdiInteropRenderTarget::GetDC.

Note  This flag is not available in Windows Store apps.

 
D2D1_BITMAP_OPTIONS_FORCE_DWORD
Value: 0xffffffff

Remarks

D2D1_BITMAP_OPTIONS_NONE implies that none of the flags are set. This means that the bitmap can be used for drawing from, cannot be set as a target and cannot be read from by the CPU.

D2D1_BITMAP_OPTIONS_TARGET means that the bitmap can be specified as a target in ID2D1DeviceContext::SetTarget. If you also specify the D2D1_BITMAP_OPTIONS_CANNOT_DRAW flag the bitmap can be used a target but, it cannot be drawn from. Attempting to draw with a bitmap that has both flags set will result in the device context being put into an error state with D2DERR_BITMAP_CANNOT_DRAW.

D2D1_BITMAP_OPTIONS_CPU_READ means that the bitmap can be mapped by using ID2D1Bitmap1::Map. This flag requires D2D1_BITMAP_OPTIONS_CANNOT_DRAW and cannot be combined with any other flags. The bitmap must be updated with the CopyFromBitmap or CopyFromRenderTarget methods.

Note  You should only use D2D1_BITMAP_OPTIONS_CANNOT_DRAW is when the purpose of the bitmap is to be a target only or when the bitmap will be mapped .
 
D2D1_BITMAP_OPTIONS_GDI_COMPATIBLE means that it is possible to get a DC associated with this bitmap. This must be used in conjunction with D2D1_BITMAP_OPTIONS_TARGET. The DXGI_FORMAT must be either DXGI_FORMAT_B8G8R8A8_UNORM or DXGI_FORMAT_B8G8R8A8_UNORM_SRGB.

Requirements

Requirement Value
Minimum supported client Windows 8 and Platform Update for Windows 7 [desktop apps | UWP apps]
Minimum supported server Windows Server 2012 and Platform Update for Windows Server 2008 R2 [desktop apps | UWP apps]
Header d2d1_1.h

See also

ID2D1DeviceContext::CreateBitmap