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The ImageLockMode enumeration specifies flags that are passed to the flags parameter of the Bitmap::LockBits method. The Bitmap::LockBits method locks a portion of an image so that you can read or write the pixel data.
Syntax
typedef enum ImageLockMode {
ImageLockModeRead = 0x0001,
ImageLockModeWrite = 0x0002,
ImageLockModeUserInputBuf = 0x0004
} ;
Constants
ImageLockModeReadValue: 0x0001 Specifies that a portion of the image is locked for reading. |
ImageLockModeWriteValue: 0x0002 Specifies that a portion of the image is locked for writing. |
ImageLockModeUserInputBufValue: 0x0004 Specifies that the buffer used for reading or writing pixel data is allocated by the user. If this flag is set, then the lockedBitmapData parameter of the Bitmap::LockBits method serves as an input parameter (and possibly as an output parameter). If this flag is cleared, then the lockedBitmapData parameter serves only as an output parameter. |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP, Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Header | gdiplusimaging.h (include Gdiplus.h) |