libvncclient: Maintain screen data when sending ExtendedDesktopSize

Author: necouchman

src/libvncclient/rfbclient.c

@@ -1715,6 +1715,14 @@ SendExtDesktopSize(rfbClient* client, uint16_t width, uint16_t height)
     sdm.width = rfbClientSwap16IfLE(width);
     sdm.height = rfbClientSwap16IfLE(height);
     sdm.numberOfScreens = 1;
+
+    /* Copy existing screen information to send with update. */
+    screen.id = client->screen.id;
+    screen.x = client->screen.x;
+    screen.y = client->screen.y;
+    screen.flags = client->screen.flags;
+
+    /* Get updated width and height for the resize. */
     screen.width = rfbClientSwap16IfLE(width);
     screen.height = rfbClientSwap16IfLE(height);