BlitImageAlphaSubColour

BlitImageAlphaSubColour ThisImage, Xpos, Ypos, BlendColour

Parameters:     ThisImage = The Index of the image you wish to draw     Xpos = The X coordinate to draw this image     Ypos = The Y coordinate to draw this image     BlendColour = The RGB Colour to blend this surface after it's been drawn

Returns: NONE

BlitImageAlphaSubColour is similar to the DrawImage function, except it has post processing. What it does, is it draws your selected image, but it also performs a Alpha Colour Subtraction on the image with your selected colour. So it's the equivalent using DrawImage to first draw the image as is, then going back drawing a BOX with an AlphaSub InkMode over the image..       The combined processing is not just to save you a few lines of code, it's actually a more optimal way of performing this action. FACTS:      * BlitImageAlphaSubColour is only intend for drawing FX or AFX formatted surfaces.      * BlitImageAlphaSubColour doesn't support mask & alpha channel transparency.

Example Source: Download This Example ; Inlude the Blit Image functions   #Include "BlitImage"       ; Create an FX image the size of the screen   MyImage=NewFXImage(GetScreenWidth(),GetScreenHeight())          ; Set Fps of the program   SetFPS 30    ; enable Vsync to remove any tearing from the refresh   ScreenVsync on    ; Start of Demo loop   Do          ; redirect all drawing to this image      RenderToImage MyImage                ;Change the pen's ink mode to Alpha ADD      InkMode 1+64          ; draw a circle at the mouses current position      CircleC MouseX(),MouseY(),100, true,$803080          ; redirect all drawing to screen back buffer      RenderToScreen          ; To do combined Blit (copy) our Image, with combined CLS of image.    ; to the PB screen      BlitImageAlphaSubColour(MyImage,0,0,RGB(8,8,8))                      ; Display Message      Text 0,0,"Using BlitImageAlphaSubColour to fade image out"          ; flip the back buffer to the front, so the user can see it      Sync         Loop

Related Info:	BlitImageAlpha50Colour | BlitImageAlphaAddColour | BlitImageClear | Box | DrawAlphaImage | DrawImage | InkMode :

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