[This is preliminary documentation and subject to change.]
The values of the BMFORMAT enumerated type are used by several ICM functions to indicate the format that particular bitmaps are in. The enumeration defines the following values:
| Value | Meaning |
|---|---|
| BM_1GRAY | 1 bit per pixel. |
| BM_x555RGB | 16 bits per pixel. RGB color space. 5 bits per channel. The most significant bit is ignored. |
| BM_x555XYZ | 16 bits per pixel. CIE device-independent XYZ color space. 5 bits per channel. The most significant bit is ignored. |
| BM_x555Yxy | 16 bits per pixel. Yxy color space. 5 bits per channel. The most significant bit is ignored. |
| BM_x555Lab | 16 bits per pixel. L*a*b color space. 5 bits per channel. The most significant bit is ignored. |
| BM_x555G3CH | 16 bits per pixel. G2CH color space. 5 bits per channel. The most significant bit is ignored. |
| BM_RGBTRIPLETS | 32 bits per pixel. 8 bits are for grayscale, and 8 bits apiece are used for the red, green, and blue values. |
| BM_BGRTRIPLETS | 32 bits per pixel. 8 bits are for grayscale, and 8 bits apiece are used for the blue, green, and red values. |
| BM_XYZTRIPLETS | 32 bits per pixel. 8 bits are for grayscale, and 8 bits apiece are used for the X, Y, and Z values. |
| BM_YxyTRIPLETS | 32 bits per pixel. 8 bits are for grayscale, and 8 bits apiece are used for the Y, x, and y values. |
| BM_LabTRIPLETS | 32 bits per pixel. 8 bits are for grayscale, and 8 bits apiece are used for the L, a, and b values. |
| BM_G3CHTRIPLETS | 32 bits per pixel. 8 bits are for grayscale, and 8 bits apiece are used for the color channel values. |
| BM_8GRAY | 32 bits per pixel. Only the 8 bit grayscale value is used. |
| BM_xRGBQUADS | 32 bits per pixel. 8 bits are used for each color channel. The most significant byte is ignored. |
| BM_xBGRQUADS | 32 bits per pixel. 8 bits are used for each color channel. The most significant byte is ignored. |
| BM_xG3CHQUADS | 32 bits per pixel. 8 bits are used for each color channel. The most significant byte is ignored. |
| BM_CMYKQUADS | 32 bits per pixel. 8 bits are used for each color channel. |
| BM_10b_RGB | 32 bits per pixel. 10 bits are used for each color channel. The 2 most significant bits are ignored. |
| BM_10b_XYZ | 32 bits per pixel. 10 bits are used for each color channel. The 2 most significant bits are ignored. |
| BM_10b_Yxy | 32 bits per pixel. 10 bits are used for each color channel. The 2 most significant bits are ignored. |
| BM_10b_Lab | 32 bits per pixel. 10 bits are used for each color channel. The 2 most significant bits are ignored. |
| BM_10b_G3CH | 32 bits per pixel. 10 bits are used for each color channel. The 2 most significant bits are ignored. |
| BM_16b_RGB | 64 bits per pixel. 16 bits are used for the grayscale value. Each of the 3 color channels uses 16 bits. |
| BM_16b_XYZ | 64 bits per pixel. 16 bits are used for the grayscale value. Each of the 3 color channels uses 16 bits. |
| BM_16b_Yxy | 64 bits per pixel. 16 bits are used for the grayscale value. Each of the 3 color channels uses 16 bits. |
| BM_16b_Lab | 64 bits per pixel. 16 bits are used for the grayscale value. Each of the 3 color channels uses 16 bits. |
| BM_16b_G3CH | 64 bits per pixel. 16 bits are used for the grayscale value. Each of the 3 color channels uses 16 bits. |
| BM_16b_GRAY | 64 bits per pixel. 16 bits are used for the grayscale value. All other bits are ignored. |
| BM_565RGB | 16 bits per pixel. 5 bits are used for red, 6 for green, and 5 for blue. |
Windows NT: Requires version 5.0 or later.
Windows: Requires Windows 98.
Windows CE: Unsupported.
Header: Declared in icm.h.