DrawMatte

DrawMatte -- paints on the image's opacity channel in order to set affected pixels to transparent

Description

void DrawMatte( DrawingWand drw_wnd, float x, float y, int paint_method )

Paints on the image's opacity channel in order to set affected pixels to transparent, starting at the position specified by (x, y), and using the specified paint method, paint_method. paint_method must be one of the available paint methods, (i.e.: A PaintMethod constant), one of the following: MW_PointMethod: Select the target pixel. MW_ReplaceMethod: Select any pixel that matches the target pixel. MW_FloodfillMethod: Select the target pixel and matching neighbors. MW_FillToBorderMethod: Select the target pixel and neighbors not matching border color. MW_ResetMethod: Select all pixels.

---

A description of each parameter follows:

drw_wnd	A DrawingWand resource
x	The x ordinate of the start position
y	The y ordinate of the start position
paint_method	A PaintMethod constant