SDL_RenderCoordinatesFromWindow - Man Page

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)

Referenced By

SDL_ConvertEventToRenderCoordinates(3).

SDL 3.2.2 Simple Directmedia Layer SDL3 FUNCTIONS