SDL_RenderCoordinatesFromWindow3
Get a point in render coordinates when given a point in window coordinates.
Usage
#include "SDL3/SDL.h"
bool SDL_RenderCoordinatesFromWindow(SDL_Renderer *renderer, float window_x, float window_y, float *x, float *y);
Header file
Defined in SDL3/SDL_render.h
Overview
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.