user32: Add a stub for GetDpiForWindow().

dlls/user32/sysparams.c

@@ -2955,6 +2955,15 @@ UINT WINAPI GetDpiForSystem(void)
     return display_dpi;
 }
 
+/***********************************************************************
+ *              GetDpiForWindow   (USER32.@)
+ */
+UINT WINAPI GetDpiForWindow( HWND hwnd )
+{
+    FIXME( "stub: %p\n", hwnd );
+    return GetDpiForSystem();
+}
+
 /**********************************************************************
  *              SetThreadDpiAwarenessContext   (USER32.@)
  */

dlls/user32/user32.spec

@@ -293,6 +293,7 @@
 @ stdcall GetDlgItemTextW(long long ptr long)
 @ stdcall GetDoubleClickTime()
 @ stdcall GetDpiForSystem()
+@ stdcall GetDpiForWindow(long)
 @ stdcall GetFocus()
 @ stdcall GetForegroundWindow()
 @ stdcall GetGestureConfig(long long long ptr ptr long)

include/winuser.h

@@ -3675,6 +3675,7 @@ WINUSERAPI UINT        WINAPI GetDlgItemTextA(HWND,INT,LPSTR,INT);
 WINUSERAPI UINT        WINAPI GetDlgItemTextW(HWND,INT,LPWSTR,INT);
 #define                       GetDlgItemText WINELIB_NAME_AW(GetDlgItemText)
 WINUSERAPI UINT        WINAPI GetDoubleClickTime(void);
+WINUSERAPI UINT        WINAPI GetDpiForWindow(HWND);
 WINUSERAPI UINT        WINAPI GetDpiForSystem(void);
 WINUSERAPI HWND        WINAPI GetFocus(void);
 WINUSERAPI HWND        WINAPI GetForegroundWindow(void);