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¶

You may only call this function from the main thread.

AVAILABILITY¶

This function is available since SDL 3.1.3.

SEE ALSO¶

•(3), SDL_SetRenderLogicalPresentation(3), •(3), SDL_SetRenderScale(3)