Create a window on Windows

FossilOrigin-Name: bf625526315ec71308288cbf7e91dc425ca1dd9e4e762a4c264cf2235c06558e

src/O3DWinAPIWindow.m

@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2022 Jonathan Schleifer <js@nil.im>
+ *
+ * All rights reserved.
+ *
+ * This file is part of Obj3DEngine. It may be distributed under the terms of
+ * the Q Public License 1.0, which can be found in the file LICENSE.QPL
+ * included in the packaging of this file.
+ *
+ * Alternatively, it may be distributed under the terms of the GNU General
+ * Public License, either version 2 or 3, which can be found in the file
+ * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of
+ * this file.
+ */
+
+#import "O3DWinAPIWindow.h"
+
+#ifdef OF_WINDOWS
+# include <winuser.h>
+
+@implementation O3DWinAPIWindow
+@synthesize hWnd = _hWnd;
+
+- (instancetype)initWithSize: (OFSize)size
+{
+	self = [super init];
+
+	@try {
+		_wndClass = (WNDCLASS){
+			.lpfnWndProc = (WNDPROC)DefWindowProc,
+			.hInstance = GetModuleHandle(NULL),
+			.lpszClassName = "O3DMainWindowClass"
+		};
+
+		if (!RegisterClass(&_wndClass))
+			@throw [OFInitializationFailedException
+			    exceptionWithClass: self.class];
+
+		if ((_hWnd = CreateWindowEx(WS_EX_APPWINDOW,
+		    _wndClass.lpszClassName, "O3DMainWindow", WS_OVERLAPPED,
+		    CW_USEDEFAULT, CW_USEDEFAULT, size.width, size.height,
+		    NULL, NULL, _wndClass.hInstance, NULL)) == NULL)
+			@throw [OFInitializationFailedException
+			    exceptionWithClass: self.class];
+
+		ShowWindow(_hWnd, SW_NORMAL);
+		UpdateWindow(_hWnd);
+	} @catch (id e) {
+		[self release];
+		@throw e;
+	}
+
+	return self;
+}
+
+- (instancetype)init
+{
+	OF_INVALID_INIT_METHOD
+}
+
+- (void)dealloc
+{
+	if (_hWnd != NULL)
+		OFEnsure(DestroyWindow(_hWnd));
+
+	if (_wndClass.lpszClassName != NULL)
+		OFEnsure(UnregisterClass(
+		    _wndClass.lpszClassName, _wndClass.hInstance));
+
+	[super dealloc];
+}
+@end
+#endif