Merge pull request #572 from lordhoto/sdl2-support

SDL: Add experimental support for SDL2

1 files changed, 59 insertions, 0 deletions

diff --git a/backends/platform/sdl/win32/win32-window.cpp b/backends/platform/sdl/win32/win32-window.cpp
new file mode 100644
index 0000000000..de10be6b57
--- /dev/null
+++ b/backends/platform/sdl/win32/win32-window.cpp
@@ -0,0 +1,59 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+// Disable symbol overrides so that we can use system headers.
+#define FORBIDDEN_SYMBOL_ALLOW_ALL
+
+#ifdef WIN32
+
+#include "backends/platform/sdl/win32/win32-window.h"
+
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#undef ARRAYSIZE // winnt.h defines ARRAYSIZE, but we want our own one...
+
+void SdlWindow_Win32::setupIcon() {
+	HMODULE handle = GetModuleHandle(NULL);
+	HICON   ico    = LoadIcon(handle, MAKEINTRESOURCE(1001 /* IDI_ICON */));
+	if (ico) {
+		SDL_SysWMinfo wminfo;
+		if (getSDLWMInformation(&wminfo)) {
+			// Replace the handle to the icon associated with the window class by our custom icon
+#if SDL_VERSION_ATLEAST(2, 0, 0)
+			SetClassLongPtr(wminfo.info.win.window, GCLP_HICON, (ULONG_PTR)ico);
+#else
+			SetClassLongPtr(wminfo.window, GCLP_HICON, (ULONG_PTR)ico);
+#endif
+
+			// Since there wasn't any default icon, we can't use the return value from SetClassLong
+			// to check for errors (it would be 0 in both cases: error or no previous value for the
+			// icon handle). Instead we check for the last-error code value.
+			if (GetLastError() == ERROR_SUCCESS)
+				return;
+		}
+	}
+
+	// If no icon has been set, fallback to default path
+	SdlWindow::setupIcon();
+}
+
+#endif