Win32: Fix Mouse.setCursorLocation()

src/native/win32/context.c

@@ -110,18 +110,8 @@ void closeWindow(HWND *hwnd, HDC *hdc)
 	}
 }
 
-/*
- * Create a window with the specified title, position, size, and
- * fullscreen attribute. The window will have DirectInput associated
- * with it.
- * 
- * Returns true for success, or false for failure
- */
-HWND createWindow(LPCTSTR window_class_name, int x, int y, int width, int height, bool fullscreen, bool undecorated)
-{
-	RECT clientSize;
-	int exstyle, windowflags;
-	HWND new_hwnd;
+void getWindowFlags(DWORD *windowflags_return, DWORD *exstyle_return, bool fullscreen, bool undecorated) {
+	DWORD exstyle, windowflags;
 	if (fullscreen) {
 		exstyle = WS_EX_APPWINDOW | WS_EX_TOPMOST;
 		windowflags = WS_POPUP;
@@ -133,6 +123,24 @@ HWND createWindow(LPCTSTR window_class_name, int x, int y, int width, int height
 		windowflags = WS_OVERLAPPED | WS_BORDER | WS_CAPTION | WS_MINIMIZEBOX | WS_SYSMENU;
 	}
 	windowflags = windowflags | WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
+	*windowflags_return = windowflags;
+	*exstyle_return = exstyle;
+}
+
+/*
+ * Create a window with the specified title, position, size, and
+ * fullscreen attribute. The window will have DirectInput associated
+ * with it.
+ * 
+ * Returns true for success, or false for failure
+ */
+HWND createWindow(LPCTSTR window_class_name, int x, int y, int width, int height, bool fullscreen, bool undecorated)
+{
+	RECT clientSize;
+	DWORD exstyle, windowflags;
+	HWND new_hwnd;
+	
+	getWindowFlags(&windowflags, &exstyle, fullscreen, indecorated);
 
 	// If we're not a fullscreen window, adjust the height to account for the
 	// height of the title bar (unless undecorated)

src/native/win32/context.h

@@ -79,6 +79,11 @@ extern void closeWindow(HWND *hwnd, HDC *hdc);
  */
 extern HWND createDummyWindow(int x, int y);
 
+/**
+ * Return appropriate window and extended style flags from the given fullscreen and undecorated property
+ */
+extern void getWindowFlags(DWORD *windowflags_return, DWORD *exstyle_return, bool fullscreen, bool undecorated);
+
 /*
  * Create a window with the specified position, size, and
  * fullscreen attribute. The window will have DirectInput associated

src/native/win32/org_lwjgl_input_Mouse.c

@@ -354,14 +354,36 @@ JNIEXPORT void JNICALL Java_org_lwjgl_opengl_Win32Display_pollMouse(JNIEnv * env
 
 JNIEXPORT void JNICALL Java_org_lwjgl_opengl_Win32Display_setCursorPosition
 (JNIEnv * env, jobject self, jint x, jint y) {
+	DWORD windowflags, exstyle;
 	int transformed_x, transformed_y;
 	RECT window_rect;
+	RECT client_rect;
+	RECT adjusted_client_rect;
+
+	int left_border_width;
+	int bottom_border_width;
+
+	getWindowFlags(&windowflags, &extyle, isFullscreen, getBooleanProperty(env, "org.lwjgl.opengl.Window.undecorated"));
+	if (!GetClientRect(getCurrentHWND(), &client_rect)) {
+		printfDebugJava(env, "GetClientRect failed");
+		return;
+	}
+
+	adjusted_client_rect = client_rect;
+	if (!AdjustWindowRectEx(&adjusted_client_rect, windowflags, FALSE, exstyle)) {
+		printfDebugJava(env, "AdjustWindowRectEx failed");
+		return;
+	}
+	
 	if (!GetWindowRect(getCurrentHWND(), &window_rect)) {
 		printfDebugJava(env, "GetWindowRect failed");
 		return;
 	}
-	transformed_x = window_rect.left + x;
-	transformed_y = window_rect.bottom - y;
+	left_border_width = -adjusted_client_rect.left;
+	bottom_border_width = adjusted_client_rect.bottom - client_rect.bottom;
+	
+	transformed_x = window_rect.left + left_border_width + x;
+	transformed_y = window_rect.bottom - bottom_border_width - y;
 	if (!SetCursorPos(transformed_x, transformed_y))
 		printfDebugJava(env, "SetCursorPos failed");
 }

src/native/win32/org_lwjgl_opengl_Display.c

@@ -371,24 +371,14 @@ JNIEXPORT jobject JNICALL Java_org_lwjgl_opengl_Win32Display_init(JNIEnv *env, j
 }
 
 JNIEXPORT void JNICALL Java_org_lwjgl_opengl_Win32Display_reshape(JNIEnv *env, jobject self, jint x, jint y, jint width, jint height) {
-	int exstyle, windowflags;
+	DWORD exstyle, windowflags;
 	RECT clientSize;
 
 	if (isFullScreen) {
 		return;
 	}
 
-	if (isFullScreen) {
-		exstyle = WS_EX_APPWINDOW | WS_EX_TOPMOST;
-		windowflags = WS_POPUP;
-	} else if (getBooleanProperty(env, "org.lwjgl.opengl.Window.undecorated")) {
-		exstyle = WS_EX_APPWINDOW;
-		windowflags = WS_POPUP;
-	} else {
-		exstyle = WS_EX_APPWINDOW;
-		windowflags = WS_OVERLAPPED | WS_BORDER | WS_CAPTION | WS_MINIMIZEBOX | WS_SYSMENU;
-	}
-	windowflags = windowflags | WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
+	getWindowFlags(&windowflags, &exstyle, isFullscreen, getBooleanProperty(env, "org.lwjgl.opengl.Window.undecorated"));
 	
 	// If we're not a fullscreen window, adjust the height to account for the
 	// height of the title bar: