src/lib/sdl2/sdlshape.inc

   1 //from "sdl_shape.h"
   2
   3 {**  SDL_shape.h
   4  *
   5  * Header file for the shaped window API.
   6  *}
   7 const
   8   SDL_NONSHAPEABLE_WINDOW = -1;
   9   SDL_INVALID_SHAPE_ARGUMENT = -2;
  10   SDL_WINDOW_LACKS_SHAPE = -3;
  11
  12 type
  13   PPSDL_Window = ^PSDL_Window;
  14   PSDL_Window = ^TSDL_Window;
  15
  16   {** An enum denoting the specific type of contents present in an SDL_WindowShapeParams union. *}
  17   TWindowShapeMode = ({** The default mode, a binarized alpha cutoff of 1. *}
  18                       ShapeModeDefault,
  19                       {** A binarized alpha cutoff with a given integer value. *}
  20                       ShapeModeBinarizeAlpha,
  21                       {** A binarized alpha cutoff with a given integer value, but with the opposite comparison. *}
  22                       ShapeModeReverseBinarizeAlpha,
  23                       {** A color key is applied. *}
  24                       ShapeModeColorKey);
  25
  26 //#define SDL_SHAPEMODEALPHA(mode) (mode == ShapeModeDefault || mode == ShapeModeBinarizeAlpha || mode == ShapeModeReverseBinarizeAlpha)
  27
  28   {** A union containing parameters for shaped windows. *}
  29   TSDL_WindowShapeParams = record
  30     case Integer of
  31       {** a cutoff alpha value for binarization of the window shape's alpha channel. *}
  32       0: (binarizationCutoff: UInt8;);
  33       1: (colorKey: TSDL_Color;);
  34   end;
  35
  36   {** A struct that tags the SDL_WindowShapeParams union with an enum describing the type of its contents. *}
  37   PSDL_WindowShapeMode = ^TSDL_WindowShapeMode;
  38   TSDL_WindowShapeMode = record
  39     {** The mode of these window-shape parameters. *}
  40     mode: TWindowShapeMode;
  41     {** Window-shape parameters. *}
  42     parameters: TSDL_WindowShapeParams;
  43   end;