add API for getting/setting window size

bahahahaaa

src/libui_sdl/libui/ui.h

@@ -108,6 +108,8 @@ typedef struct uiWindow uiWindow;
 #define uiWindow(this) ((uiWindow *) (this))
 _UI_EXTERN char *uiWindowTitle(uiWindow *w);
 _UI_EXTERN void uiWindowSetTitle(uiWindow *w, const char *title);
+_UI_EXTERN void uiWindowPosition(uiWindow *w, int *x, int *y);
+_UI_EXTERN void uiWindowSetPosition(uiWindow *w, int x, int y);
 _UI_EXTERN void uiWindowContentSize(uiWindow *w, int *width, int *height);
 _UI_EXTERN void uiWindowSetContentSize(uiWindow *w, int width, int height);
 _UI_EXTERN int uiWindowMinimized(uiWindow *w);

src/libui_sdl/libui/windows/window.cpp

@@ -363,6 +363,21 @@ static void windowMonitorRect(HWND hwnd, RECT *r)
 	*r = mi.rcMonitor;
 }
 
+void uiWindowPosition(uiWindow *w, int *x, int *y)
+{
+    RECT rect;
+    if (GetWindowRect(w->hwnd, &rect) == 0)
+        logLastError(L"error getting window position");
+    *x = rect.left;
+    *y = rect.top;
+}
+
+void uiWindowSetPosition(uiWindow *w, int x, int y)
+{
+    if (SetWindowPos(w->hwnd, NULL, x, y, 0, 0, SWP_NOACTIVATE | SWP_NOSIZE | SWP_NOOWNERZORDER | SWP_NOZORDER) == 0)
+        logLastError(L"error moving window");
+}
+
 void uiWindowContentSize(uiWindow *w, int *width, int *height)
 {
 	RECT r;

src/libui_sdl/main.cpp

@@ -1859,9 +1859,12 @@ void OnOpenVideoSettings(uiMenuItem* item, uiWindow* window, void* blarg)
     EmuRunning = 3;
     while (EmuStatus != 3);
 
+    int winX, winY;
+    uiWindowPosition(MainWindow, &winX, &winY);
     uiControlDestroy(uiControl(window));
 
     zarg();
+    uiWindowSetPosition(MainWindow, winX, winY);
 
     EmuRunning = zerp;
 }