1 files changed, 54 insertions, 0 deletions
diff --git a/hw/xwin/winmultiwindowwndproc.c b/hw/xwin/winmultiwindowwndproc.c
index 502292d10..3a0076a7b 100644
--- a/hw/xwin/winmultiwindowwndproc.c
+++ b/hw/xwin/winmultiwindowwndproc.c
@@ -1197,3 +1197,57 @@ winChildWindowProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
 
     return DefWindowProc(hwnd, message, wParam, lParam);
 }
+
+void
+winUpdateWindowPosition(HWND hWnd, HWND * zstyle)
+{
+    int iX, iY, iWidth, iHeight;
+    int iDx, iDy;
+    RECT rcNew;
+    WindowPtr pWin = GetProp(hWnd, WIN_WINDOW_PROP);
+    DrawablePtr pDraw = NULL;
+
+    if (!pWin)
+        return;
+    pDraw = &pWin->drawable;
+    if (!pDraw)
+        return;
+
+    /* Get the X and Y location of the X window */
+    iX = pWin->drawable.x + GetSystemMetrics(SM_XVIRTUALSCREEN);
+    iY = pWin->drawable.y + GetSystemMetrics(SM_YVIRTUALSCREEN);
+
+    /* Get the height and width of the X window */
+    iWidth = pWin->drawable.width;
+    iHeight = pWin->drawable.height;
+
+    /* Setup a rectangle with the X window position and size */
+    SetRect(&rcNew, iX, iY, iX + iWidth, iY + iHeight);
+
+    winDebug("winUpdateWindowPosition - drawable extent (%d, %d)-(%d, %d)\n",
+             rcNew.left, rcNew.top, rcNew.right, rcNew.bottom);
+
+    AdjustWindowRectEx(&rcNew, GetWindowLongPtr(hWnd, GWL_STYLE), FALSE,
+                       GetWindowLongPtr(hWnd, GWL_EXSTYLE));
+
+    /* Don't allow window decoration to disappear off to top-left as a result of this adjustment */
+    if (rcNew.left < GetSystemMetrics(SM_XVIRTUALSCREEN)) {
+        iDx = GetSystemMetrics(SM_XVIRTUALSCREEN) - rcNew.left;
+        rcNew.left += iDx;
+        rcNew.right += iDx;
+    }
+
+    if (rcNew.top < GetSystemMetrics(SM_YVIRTUALSCREEN)) {
+        iDy = GetSystemMetrics(SM_YVIRTUALSCREEN) - rcNew.top;
+        rcNew.top += iDy;
+        rcNew.bottom += iDy;
+    }
+
+    winDebug("winUpdateWindowPosition - Window extent (%d, %d)-(%d, %d)\n",
+             rcNew.left, rcNew.top, rcNew.right, rcNew.bottom);
+
+    /* Position the Windows window */
+    SetWindowPos(hWnd, *zstyle, rcNew.left, rcNew.top,
+                 rcNew.right - rcNew.left, rcNew.bottom - rcNew.top, 0);
+
+}