IG_extra_channel_info_opacity_set
This function sets new opacity for the extra channel.
Declaration:
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Copy Code
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AT_ERRCOUNT ACCUAPI IG_extra_channel_info_opacity_set(
HIGEXTRACHANNELINFO hInfo,
AT_WORD Opacity
);
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Arguments:
| Name |
Type |
Description |
| hInfo |
HIGEXTRACHANNELINFO |
Extra channel object. |
| Opacity |
AT_WORD |
New opacity value for this extra channel (should be in range 0-100). |
Return Value:
Error Count.
Supported Raster Image Formats:
This function does not process image pixels.
Remarks:
This function is applicable to any type of extra channels except IG_EXTRA_CHANNEL_TYPE_Unknown.
- Valid values are 0 through 255.
- An opacity value equal to 0 is transparent.
- Any opacity value from 1 to 254 is translucent.
- An opacity value equal to 255 is opaque.
