CHANNELTYPE

typedef enum _CHANNELTYPE
{
   ALPHA_CHANNEL = 0,
   RED_CHANNEL,
   GREEN_CHANNEL,
   BLUE_CHANNEL,
   CYAN_CHANNEL,
   MAGENTA_CHANNEL,
   YELLOW_CHANNEL,
   KEY_CHANNEL,
   GRAY_CHANNEL,
   BITMAP_CHANNEL,
   LIGHTNESS_CHANNEL,
   A_CHANNEL,
   B_CHANNEL
} CHANNELTYPE;

The CHANNELTYPE enumeration provides information about the type of the channel used to identify the alpha channels (extra channels) in the PSD files.

Member	Description
ALPHA_CHANNEL	Alpha channel.
RED_CHANNEL	Red channel.
GREEN_CHANNEL	Green channel.
BLUE_CHANNEL	Blue channel.
CYAN_CHANNEL	Cyan channel.
MAGENTA_CHANNEL	Magenta channel.
YELLOW_CHANNEL	Yellow channel.
KEY_CHANNEL	Key channel.
GRAY_CHANNEL	Gray channel.
BITMAP_CHANNEL	Bitmap channel.
LIGHTNESS_CHANNEL	Lightness channel.
A_CHANNEL	A channel.
B_CHANNEL	B channel.