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SDL_SetWindowShape

typedef enum { /'''' \brief The default mode, a binarized alpha cutoff of 1.

Syntax

int SDL_SetWindowShape(SDL_Window *window,SDL_Surface *shape,SDL_WindowShapeMode *shape_mode);

Function Parameters

window

The shaped window whose parameters should be set.

shape

A surface encoding the desired shape for the window.

shape_mode

The parameters to set for the shaped window.

Return Value

Return 0 on success, SDL_INVALID_SHAPE_ARGUMENT on an invalid shape argument, or SDL_NONSHAPEABLE_WINDOW if the SDL_Window given does not reference a valid shaped window.

Remarks

/ ShapeModeDefault, /' \brief A binarized alpha cutoff with a given integer value. / ShapeModeBinarizeAlpha, /' \brief A binarized alpha cutoff with a given integer value, but with the opposite comparison. / ShapeModeReverseBinarizeAlpha, /' \brief A color key is applied. ''/ ShapeModeColorKey } WindowShapeMode;

  1. define SDL_SHAPEMODEALPHA(mode) (mode == ShapeModeDefault || mode ==

ShapeModeBinarizeAlpha || mode == ShapeModeReverseBinarizeAlpha)

/' \brief A union containing parameters for shaped windows./ typedef union { /' \brief A cutoff alpha value for binarization of the window shape's alpha channel./ Uint8 binarizationCutoff; SDL_Color colorKey; } SDL_WindowShapeParams;

/' \brief A struct that tags the SDL_WindowShapeParams union with an enum describing the type of its contents./ typedef struct SDL_WindowShapeMode { /' \brief The mode of these window-shape parameters./ WindowShapeMode mode; /' \brief Window-shape parameters./ SDL_WindowShapeParams parameters; } SDL_WindowShapeMode;

/''*

SDL_WindowShapeMode
SDL_GetShapedWindowMode.

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