The CHANNELTYPE enumeration provides information about the type of the channel used to identify the alpha channels (extra channels) in the PSD files.
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;
Alpha channel.
Red channel.
Green channel.
Blue channel.
Cyan channel.
Magenta channel.
Yellow channel.
Key channel.
Gray channel.
Bitmap channel.
Lightness channel.
A channel.
B channel.
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