NAME

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

SYNOPSIS

#include <SDL3/SDL_main.h>

bool SDL_RegisterApp(const char *name, Uint32 style, void *hInst);

DESCRIPTION

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.

If name is NULL, SDL currently uses (CS_BYTEALIGNCLIENT | CS_OWNDC) for the style, regardless of what is specified here.

FUNCTION PARAMETERS

name

the window class name, in UTF-8 encoding. If NULL, SDL currently uses "SDL_app" but this isn't guaranteed.

style

the value to use in WNDCLASSEX::style.

hInst

the HINSTANCE to use in WNDCLASSEX::hInstance. If zero, SDL will use GetModuleHandle(NULL) instead.

RETURN VALUE

Returns true on success or false on failure; call SDL_GetError() for more information.

THREAD SAFETY

This function is not thread safe.

AVAILABILITY

This function is available since SDL 3.2.0.