NAME
SDL_RenderCoordinatesFromWindow - Get a point in render coordinates when given a point in window coordinates.
HEADER FILE
Defined in SDL3/SDL_render.h
SYNOPSIS
#include "SDL3/SDL.h"
bool SDL_RenderCoordinatesFromWindow(SDL_Renderer *renderer, float window_x, float window_y, float *x, float *y);
DESCRIPTION
This takes into account several states:
• The window dimensions.
• The logical presentation settings
( SDL_SetRenderLogicalPresentation )
• The scale ( SDL_SetRenderScale )
• The viewport ( SDL_SetRenderViewport )
FUNCTION PARAMETERS
- renderer
-
the rendering context.
- window_x
-
the x coordinate in window coordinates.
- window_y
-
the y coordinate in window coordinates.
- x
-
a pointer filled with the x coordinate in render coordinates.
- y
-
a pointer filled with the y coordinate in render coordinates.
RETURN VALUE
Returns true on success or false on failure; call
SDL_GetError () for more information.
THREAD SAFETY
This function should only be called on the main thread.
AVAILABILITY
This function is available since SDL 3.2.0.
SEE ALSO
•(3), SDL_SetRenderLogicalPresentation(3), •(3), SDL_SetRenderScale(3)