MaskImage

MaskImage

Command Index · BlitzBasic · Images

MaskImage:Void image:Int32, red:Int32, green:Int32, blue:Int32

Parameter	Mode	Type	Default	Description
image	In	Int32	required	The image.
red	In	Int32	required	Red part of the mask color, 0 to 255.
green	In	Int32	required	Green part of the mask color, 0 to 255.
blue	In	Int32	required	Blue part of the mask color, 0 to 255.

Description

Chooses the color that DrawImage leaves out when it draws the image. The default is black. Setting a color that the picture does not contain makes every pixel visible, which is how to show black pixels. DrawBlock ignores the mask.

Examples

Graphics 320, 240, 0, 2
SetBuffer BackBuffer()
Local img = CreateImage(80, 80)
SetBuffer ImageBuffer(img)
Color 255, 0, 255
Rect 0, 0, 80, 80, 1
Color 255, 220, 0
Oval 10, 10, 60, 60, 1
SetBuffer BackBuffer()
Cls
Color 30, 60, 120
Rect 0, 0, 320, 240, 1
DrawImage img, 30, 80
MaskImage img, 255, 0, 255
DrawImage img, 190, 80
Color 255, 255, 255
Text 70, 190, "mask black", 1, 1
Text 230, 190, "mask magenta", 1, 1
Flip
WaitKey

Media

Related Commands

CopyImage, CreateImage, DrawImage, FreeImage, GrabImage, HandleImage, LoadAnimImage, LoadImage

Command Index · BlitzBasic · Images