Screen Library ReferenceGeneral (screen.h)

Parent topic: General (screen.h)

Screen transparency types

Types of window transparencies.

Synopsis:

#include <screen/screen.h>

 enum {
      SCREEN_TRANSPARENCY_SOURCE = 0   
      SCREEN_TRANSPARENCY_TEST = 1   
      SCREEN_TRANSPARENCY_SOURCE_COLOR = 2   
      SCREEN_TRANSPARENCY_SOURCE_OVER = 3   
      SCREEN_TRANSPARENCY_NONE = 4   
      SCREEN_TRANSPARENCY_DISCARD = 5   
      SCREEN_TRANSPARENCY_REVERSED_TEST = 6   
};

Data:

SCREEN_TRANSPARENCY_SOURCE: Destination pixels are replaced by source pixels, including the alpha channel.

SCREEN_TRANSPARENCY_TEST: Destination pixels are replaced by source pixels when the source pixel value is greater than the reference value.; See SCREEN_PROPERTY_REFERENCE_COLOR.

SCREEN_TRANSPARENCY_SOURCE_COLOR: Destination pixels are replaced by source pixels when the source color does not match the reference color value.; See SCREEN_PROPERTY_REFERENCE_COLOR.

SCREEN_TRANSPARENCY_SOURCE_OVER: Typical alpha blending; the source pixels are blended over the destination pixels.

SCREEN_TRANSPARENCY_NONE: Destination pixels are replaced by fully-visible source pixels.

SCREEN_TRANSPARENCY_DISCARD: Source is considered completely transparent; the destination is not modified.

SCREEN_TRANSPARENCY_REVERSED_TEST: Destination pixels are replaced by source pixels when the source pixel value is less than the reference value.; See SCREEN_PROPERTY_REFERENCE_COLOR.

Library:

libscreen

Description:

Parent topic: General (screen.h)