//  Convert grayscale image (8 bits/pixel) into RGB (24 bits/pixel)
//    #20 = buffer that contains image data
//  On return:
//    #10 = buffer for the new RGB image

:GRAYSCALE_TO_RGB:
File_Open("|(VEDIT_TEMP)\RGB.data", OVERWRITE+NOEVENT+NOMSG)
#10 = Buf_Num
BOF
Del_Char(ALL)
Buf_Switch(#20)			// input image (grayscale)
BOF
Repeat(File_Size) {
    #9 =  Cur_Char()
    Char
    Buf_Switch(#10)		// output image (RGB)
    Ins_Char(#9, COUNT, 3)
    Buf_Switch(#20)
}
Return