wined3d: When changing display modes clip cursor to the requested display size.

dlls/ddraw/tests/ddrawmodes.c

@@ -146,7 +146,27 @@ static void setdisplaymode(int i)
                 modes[i].dwWidth, modes[i].dwHeight,
                 U1(modes[i].ddpfPixelFormat).dwRGBBitCount);
             ok(DD_OK==rc || DDERR_UNSUPPORTED==rc,"SetDisplayMode returned: %x\n",rc);
-	    if (DD_OK==rc) {
+            if (rc == DD_OK)
+            {
+                RECT r, scrn, virt;
+
+                SetRect(&virt, 0, 0, GetSystemMetrics(SM_CXVIRTUALSCREEN), GetSystemMetrics(SM_CYVIRTUALSCREEN));
+                OffsetRect(&virt, GetSystemMetrics(SM_XVIRTUALSCREEN), GetSystemMetrics(SM_YVIRTUALSCREEN));
+                SetRect(&scrn, 0, 0, GetSystemMetrics(SM_CXSCREEN), GetSystemMetrics(SM_CYSCREEN));
+                trace("Mode (%dx%d) [%dx%d] (%d %d)x(%d %d)\n", modes[i].dwWidth, modes[i].dwHeight,
+                      scrn.right, scrn.bottom, virt.left, virt.top, virt.right, virt.bottom);
+
+                ok(GetClipCursor(&r), "GetClipCursor() failed\n");
+                /* ddraw sets clip rect here to the screen size, even for
+                   multiple monitors */
+                ok(EqualRect(&r, &scrn), "Invalid clip rect: (%d %d) x (%d %d)\n",
+                   r.left, r.top, r.right, r.bottom);
+
+                ok(ClipCursor(NULL), "ClipCursor() failed\n");
+                ok(GetClipCursor(&r), "GetClipCursor() failed\n");
+                ok(EqualRect(&r, &virt), "Invalid clip rect: (%d %d) x (%d %d)\n",
+                   r.left, r.top, r.right, r.bottom);
+
                 rc = IDirectDraw_RestoreDisplayMode(lpDD);
                 ok(DD_OK==rc,"RestoreDisplayMode returned: %x\n",rc);
             }

dlls/wined3d/device.c

@@ -2254,6 +2254,7 @@ static HRESULT WINAPI IWineD3DDeviceImpl_SetDisplayMode(IWineD3DDevice *iface, U
     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
     LONG ret;
     const PixelFormatDesc *formatDesc  = getFormatDescEntry(pMode->Format);
+    RECT clip_rc;
 
     TRACE("(%p)->(%d,%p) Mode=%dx%dx@%d, %s\n", This, iSwapChain, pMode, pMode->Width, pMode->Height, pMode->RefreshRate, debug_d3dformat(pMode->Format));
 
@@ -2304,6 +2305,10 @@ static HRESULT WINAPI IWineD3DDeviceImpl_SetDisplayMode(IWineD3DDevice *iface, U
     if(This->ddraw_window)
       MoveWindow(This->ddraw_window, 0, 0, pMode->Width, pMode->Height, TRUE);
 
+    /* And finally clip mouse to our screen */
+    SetRect(&clip_rc, 0, 0, pMode->Width, pMode->Height);
+    ClipCursor(&clip_rc);
+
     return WINED3D_OK;
 }