Project

General

Profile

Previous Up Next

_CRmaskFromBitmap
Required : scol v4.5

Create a bitmap8 alpha mask, from the bitmap object, in converting the bitmap colors into black or white.
The palette of the bitmap8 object is reseted as a grayscale palette.

ObjBitmap8 _CRmaskFromBitmap (
Chn _channel_
ObjBitmap _bitmap_
I _white_color_
I _black_color_
)
Parameters

_channel_
object channel
_bitmap_
any 24bits bitmap
_white_color_
24bits color to be converted as white. can be nil.
_black_color_
24bits color to be converted as black. can be nil.
Return value

a 8bits paletted bitmap, to be used in alphabitmap