This enumeration specifies the type of pixel data that a Source is capable of acquiring (for example, black and white, gray, RGB, etc.).

Values:

IG_TW_PT_BW	Black and white
IG_TW_PT_CIEXYZ	CIEXYZ
IG_TW_PT_CMY	CMY
IG_TW_PT_CMYK	CMYK
IG_TW_PT_GRAY	GRAY
IG_TW_PT_PALETTE	PALETTE
IG_TW_PT_RGB	RGB
IG_TW_PT_YUV	YUV
IG_TW_PT_YUVK	YUVK