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ID2D1Bitmap1::Map method (d2d1_1.h)

  • Article

Maps the given bitmap into memory.

Syntax

HRESULT Map(
        D2D1_MAP_OPTIONS options,
  [out] D2D1_MAPPED_RECT *mappedRect
);

Parameters

options

Type: D2D1_MAP_OPTIONS

The options used in mapping the bitmap into memory.

[out] mappedRect

Type: D2D1_MAPPED_RECT*

When this method returns, contains a reference to the rectangle that is mapped into memory.

Return value

Type: HRESULT

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

HRESULT Description
S_OK No error occurred.
E_INVALIDARG One or more arguments are not valid
D3DERR_DEVICELOST The device has been lost but cannot be reset at this time.

Remarks

Note  You can't use bitmaps for some purposes while mapped. Particularly, the ID2D1Bitmap::CopyFromBitmap method doesn't work if either the source or destination bitmap is mapped.
 
The bitmap must have been created with the D2D1_BITMAP_OPTIONS_CPU_READ flag specified.

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]
Target Platform Windows
Header d2d1_1.h
DLL D2d1.dll

See also

ID2D1Bitmap1

ID2D1DeviceContext::CreateBitmap

ID2D1DeviceContext::CreateBitmapFromDxgiSurface

ID2D1RenderTarget::CreateSharedBitmap