Man page - sdl_rendercoordinatesfromwindow(3)

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Package: libsdl3-doc
apt-get install libsdl3-doc

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SDL_RenderCoordinatesFromWindow - Get a point in render coordinates when given a point in window coordinates.

Defined in SDL3/SDL_render.h

#include "SDL3/SDL.h"

bool SDL_RenderCoordinatesFromWindow(SDL_Renderer *renderer, float window_x, float window_y, float *x, float *y);

This takes into account several states:

• The window dimensions.

• The logical presentation settings
( SDL_SetRenderLogicalPresentation )

• The scale ( SDL_SetRenderScale )

• The viewport ( SDL_SetRenderViewport )

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.

Returns true on success or false on failure; call

SDL_GetError () for more information.

This function should only be called on the main thread.

This function is available since SDL 3.2.0.