Man page - sdl_renderviewportset(3)

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Manual

SDL_RenderViewportSet

NAME
HEADER FILE
SYNOPSIS
DESCRIPTION
FUNCTION PARAMETERS
RETURN VALUE
THREAD SAFETY
AVAILABILITY
SEE ALSO

NAME

SDL_RenderViewportSet - Return whether an explicit rectangle was set as the viewport.

HEADER FILE

Defined in SDL3/SDL_render.h

SYNOPSIS

#include "SDL3/SDL.h"

bool SDL_RenderViewportSet(SDL_Renderer *renderer);

DESCRIPTION

This is useful if you’re saving and restoring the viewport and want to know whether you should restore a specific rectangle or NULL. Note that the viewport is always reset when changing rendering targets.

Each render target has its own viewport. This function checks the viewport for the current render target.

FUNCTION PARAMETERS

renderer

the rendering context.

RETURN VALUE

Returns true if the viewport was set to a specific rectangle, or false if it was set to NULL (the entire target).

THREAD SAFETY

This function should only be called on the main thread.

AVAILABILITY

This function is available since SDL 3.2.0.