mirror of https://github.com/encounter/SDL.git
cleanup SDL_RegisterApp
- fix memory leak when RegisterClassEx fails - set style according to the documentation - eliminate duplicated SDL_Instance setter
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0af391cbe9
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@ -1579,6 +1579,14 @@ LPTSTR SDL_Appname = NULL;
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Uint32 SDL_Appstyle = 0;
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HINSTANCE SDL_Instance = NULL;
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static void WIN_CleanRegisterApp(WNDCLASSEX wcex)
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{
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if (wcex.hIcon) DestroyIcon(wcex.hIcon);
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if (wcex.hIconSm) DestroyIcon(wcex.hIconSm);
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SDL_free(SDL_Appname);
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SDL_Appname = NULL;
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}
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/* Register the class for this application */
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int
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SDL_RegisterApp(const char *name, Uint32 style, void *hInst)
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@ -1592,19 +1600,16 @@ SDL_RegisterApp(const char *name, Uint32 style, void *hInst)
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++app_registered;
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return (0);
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}
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if (!name && !SDL_Appname) {
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SDL_assert(SDL_Appname == NULL);
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if (!name) {
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name = "SDL_app";
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#if defined(CS_BYTEALIGNCLIENT) || defined(CS_OWNDC)
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SDL_Appstyle = (CS_BYTEALIGNCLIENT | CS_OWNDC);
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style = (CS_BYTEALIGNCLIENT | CS_OWNDC);
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#endif
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SDL_Instance = hInst ? hInst : GetModuleHandle(NULL);
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}
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if (name) {
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SDL_Appname = WIN_UTF8ToString(name);
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SDL_Appstyle = style;
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SDL_Instance = hInst ? hInst : GetModuleHandle(NULL);
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}
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SDL_Appname = WIN_UTF8ToString(name);
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SDL_Appstyle = style;
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SDL_Instance = hInst ? hInst : GetModuleHandle(NULL);
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/* Register the application class */
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wcex.cbSize = sizeof(WNDCLASSEX);
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@ -1635,6 +1640,7 @@ SDL_RegisterApp(const char *name, Uint32 style, void *hInst)
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}
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if (!RegisterClassEx(&wcex)) {
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WIN_CleanRegisterApp(wcex);
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return SDL_SetError("Couldn't register application class");
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}
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@ -1654,14 +1660,14 @@ SDL_UnregisterApp()
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}
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--app_registered;
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if (app_registered == 0) {
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/* Ensure the icons are initialized. */
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wcex.hIcon = NULL;
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wcex.hIconSm = NULL;
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/* Check for any registered window classes. */
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if (GetClassInfoEx(SDL_Instance, SDL_Appname, &wcex)) {
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UnregisterClass(SDL_Appname, SDL_Instance);
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if (wcex.hIcon) DestroyIcon(wcex.hIcon);
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if (wcex.hIconSm) DestroyIcon(wcex.hIconSm);
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}
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SDL_free(SDL_Appname);
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SDL_Appname = NULL;
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WIN_CleanRegisterApp(wcex);
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}
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}
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