Channel
Flag that indicates the channel for which to get the information. This value is ignored if the bitmap is 12 or 16-bit grayscale. Possible values are:
|
Value |
Meaning |
|
CHANNEL_MASTER |
[0] All channels. |
|
CHANNEL_RED |
[1] Red channel only. |
|
CHANNEL_GREEN |
[2] Green channel only. |
|
CHANNEL_BLUE |
[3] Blue channel only. |