DOKK / manpages / debian 13 / libsdl3-doc / SDL_RegisterApp.3.en
SDL_RegisterApp(3) SDL3 FUNCTIONS SDL_RegisterApp(3)

SDL_RegisterApp - Register a win32 window class for SDL's use.

Defined in SDL3/SDL_main.h

#include "SDL3/SDL.h"
bool SDL_RegisterApp(const char *name, Uint32 style, void *hInst);

This can be called to set the application window class at startup. It is safe to call this multiple times, as long as every call is eventually paired with a call to SDL_UnregisterApp , but a second registration attempt while a previous registration is still active will be ignored, other than to increment a counter.

Most applications do not need to, and should not, call this directly; SDL will call it when initializing the video subsystem.

the window class name, in UTF-8 encoding. If NULL, SDL currently uses " SDL_app " but this isn't guaranteed.
the value to use in WNDCLASSEX::style. If name is NULL, SDL currently uses (CS_BYTEALIGNCLIENT|CS_OWNDC) regardless of what is specified here.
the HINSTANCE to use in WNDCLASSEX::hInstance. If zero, SDL will use GetModuleHandle(NULL) instead.

Returns true on success or false on failure; call

SDL_GetError () for more information.

This function is available since SDL 3.2.0.

SDL 3.2.10 Simple Directmedia Layer