user32: Implemented GetWindowRgnBox with some tests.

dlls/user32/tests/win.c

@@ -51,6 +51,7 @@ static BOOL (WINAPI *pGetLayeredWindowAttributes)(HWND,COLORREF*,BYTE*,DWORD*);
 static BOOL (WINAPI *pSetLayeredWindowAttributes)(HWND,COLORREF,BYTE,DWORD);
 static BOOL (WINAPI *pGetMonitorInfoA)(HMONITOR,LPMONITORINFO);
 static HMONITOR (WINAPI *pMonitorFromPoint)(POINT,DWORD);
+static int  (WINAPI *pGetWindowRgnBox)(HWND,LPRECT);
 
 static BOOL test_lbuttondown_flag;
 static HWND hwndMessage;
@@ -5529,6 +5530,48 @@ static void test_handles( HWND full_hwnd )
 #endif
 }
 
+static void test_winregion(void)
+{
+    HWND hwnd;
+    RECT r;
+    int ret;
+    HRGN hrgn;
+
+    if (!pGetWindowRgnBox)
+    {
+        win_skip("GetWindowRgnBox not supported\n");
+        return;
+    }
+
+    hwnd = CreateWindowExA(0, "static", NULL, WS_VISIBLE, 10, 10, 10, 10, NULL, 0, 0, NULL);
+    /* NULL prect */
+    SetLastError(0xdeadbeef);
+    ret = pGetWindowRgnBox(hwnd, NULL);
+    ok( ret == ERROR, "Expected ERROR, got %d\n", ret);
+    ok( GetLastError() == 0xdeadbeef, "Expected , got %d\n", GetLastError());
+
+    hrgn = CreateRectRgn(2, 3, 10, 15);
+    ok( hrgn != NULL, "Region creation failed\n");
+    if (hrgn)
+    {
+        SetWindowRgn(hwnd, hrgn, FALSE);
+
+        SetLastError(0xdeadbeef);
+        ret = pGetWindowRgnBox(hwnd, NULL);
+        ok( ret == ERROR, "Expected ERROR, got %d\n", ret);
+        ok( GetLastError() == 0xdeadbeef, "Expected , got %d\n", GetLastError());
+
+        r.left = r.top = r.right = r.bottom = 0;
+        ret = pGetWindowRgnBox(hwnd, &r);
+        ok( ret == SIMPLEREGION, "Expected SIMPLEREGION, got %d\n", ret);
+        ok( r.left == 2 && r.top == 3 && r.right == 10 && r.bottom == 15,
+           "Expected (2,3,10,15), got (%d,%d,%d,%d)\n", r.left, r.top,
+                                                            r.right, r.bottom);
+        DeleteObject(hrgn);
+    }
+    DestroyWindow(hwnd);
+}
+
 START_TEST(win)
 {
     HMODULE user32 = GetModuleHandleA( "user32.dll" );
@@ -5539,6 +5582,7 @@ START_TEST(win)
     pSetLayeredWindowAttributes = (void *)GetProcAddress( user32, "SetLayeredWindowAttributes" );
     pGetMonitorInfoA = (void *)GetProcAddress( user32,  "GetMonitorInfoA" );
     pMonitorFromPoint = (void *)GetProcAddress( user32,  "MonitorFromPoint" );
+    pGetWindowRgnBox = (void *)GetProcAddress( user32, "GetWindowRgnBox" );
 
     if (!RegisterWindowClasses()) assert(0);
 
@@ -5608,6 +5652,7 @@ START_TEST(win)
     test_SetForegroundWindow(hwndMain);
     test_shell_window();
     test_handles( hwndMain );
+    test_winregion();
 
     /* add the tests above this line */
     if (hhook) UnhookWindowsHookEx(hhook);

dlls/user32/user32.spec

@@ -385,7 +385,7 @@
 @ stdcall GetWindowPlacement(long ptr)
 @ stdcall GetWindowRect(long ptr)
 @ stdcall GetWindowRgn(long long)
-# @ stub GetWindowRgnBox
+@ stdcall GetWindowRgnBox(long ptr)
 @ stdcall GetWindowTextA(long ptr long)
 @ stdcall GetWindowTextLengthA(long)
 @ stdcall GetWindowTextLengthW(long)

dlls/user32/winpos.c

@@ -155,6 +155,26 @@ int WINAPI GetWindowRgn ( HWND hwnd, HRGN hrgn )
     return nRet;
 }
 
+/***********************************************************************
+ *		GetWindowRgnBox (USER32.@)
+ */
+int WINAPI GetWindowRgnBox( HWND hwnd, LPRECT prect )
+{
+    int ret = ERROR;
+    HRGN hrgn;
+
+    if (!prect)
+        return ERROR;
+
+    if ((hrgn = CreateRectRgn(0, 0, 0, 0)))
+    {
+        if ((ret = GetWindowRgn( hwnd, hrgn )) != ERROR )
+            ret = GetRgnBox( hrgn, prect );
+        DeleteObject(hrgn);
+    }
+
+    return ret;
+}
 
 /***********************************************************************
  *		SetWindowRgn (USER32.@)