Provided by: libsdl3-doc_3.2.8+ds-1_all 

NAME
SDL_GetDisplayUsableBounds - Get the usable desktop area represented by a display, in screen coordinates.
HEADER FILE
Defined in SDL3/SDL_video.h
SYNOPSIS
#include "SDL3/SDL.h" bool SDL_GetDisplayUsableBounds(SDL_DisplayID displayID, SDL_Rect *rect);
DESCRIPTION
This is the same area as SDL_GetDisplayBounds () reports, but with portions reserved by the system removed. For example, on Apple's macOS, this subtracts the area occupied by the menu bar and dock. Setting a window to be fullscreen generally bypasses these unusable areas, so these are good guidelines for the maximum space available to a non-fullscreen window.
FUNCTION PARAMETERS
displayID the instance ID of the display to query. rect the SDL_Rect structure filled in with the display bounds.
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_GetDisplayBounds(3), •(3), SDL_GetDisplays(3) Simple Directmedia Layer SDL 3.2.8 SDL_GetDisplayUsableBounds(3)