shell32: Always set last error in Shell_NotifyIconW.

dlls/shell32/systray.c

@@ -148,7 +148,11 @@ BOOL WINAPI Shell_NotifyIconW(DWORD dwMessage, PNOTIFYICONDATAW nid)
     }
 
     tray = FindWindowExW(0, NULL, L"Shell_TrayWnd", NULL);
-    if (!tray) return FALSE;
+    if (!tray)
+    {
+        SetLastError(E_FAIL);
+        return FALSE;
+    }
 
     cds.dwData = dwMessage;
     cds.cbData = sizeof(*data);
@@ -185,6 +189,7 @@ BOOL WINAPI Shell_NotifyIconW(DWORD dwMessage, PNOTIFYICONDATAW nid)
         {
             DeleteObject(iconinfo.hbmMask);
             if (iconinfo.hbmColor) DeleteObject(iconinfo.hbmColor);
+            SetLastError(E_OUTOFMEMORY);
             return FALSE;
         }
 
@@ -241,6 +246,7 @@ noicon:
     cds.lpData = data;
     ret = SendMessageW(tray, WM_COPYDATA, (WPARAM)nid->hWnd, (LPARAM)&cds);
     if (data != &data_buffer) heap_free( data );
+    SetLastError(ret ? S_OK : E_FAIL);
     return ret;
 }
 

dlls/shell32/tests/systray.c

@@ -44,8 +44,11 @@ static void test_cbsize(void)
         nidW.uFlags = NIF_ICON|NIF_MESSAGE;
         nidW.hIcon = LoadIconA(NULL, (LPSTR)IDI_APPLICATION);
         nidW.uCallbackMessage = WM_USER+17;
+        SetLastError(0xdeadbeef);
         ret = pShell_NotifyIconW(NIM_ADD, &nidW);
         ok(ret, "NIM_ADD failed!\n");
+        ok(GetLastError() == ERROR_SUCCESS || GetLastError() == ERROR_NO_TOKEN,
+           "GetLastError() = %lu\n", GetLastError());
         /* using an invalid cbSize does work */
         nidW.cbSize = 3;
         nidW.hWnd = hMainWnd;
@@ -54,7 +57,10 @@ static void test_cbsize(void)
         ok( ret || broken(!ret), /* nt4 */ "NIM_DELETE failed!\n");
         /* as icon doesn't exist anymore - now there will be an error */
         nidW.cbSize = sizeof(nidW);
+        SetLastError(0xdeadbeef);
         ok(!pShell_NotifyIconW(NIM_DELETE, &nidW) != !ret, "The icon was not deleted\n");
+        ok(GetLastError() == E_FAIL || GetLastError() == ERROR_TIMEOUT,
+           "GetLastError() = %lu\n", GetLastError());
     }
 
     /* same for Shell_NotifyIconA */
@@ -65,7 +71,10 @@ static void test_cbsize(void)
     nidA.uFlags = NIF_ICON|NIF_MESSAGE;
     nidA.hIcon = LoadIconA(NULL, (LPSTR)IDI_APPLICATION);
     nidA.uCallbackMessage = WM_USER+17;
+    SetLastError(0xdeadbeef);
     ok(Shell_NotifyIconA(NIM_ADD, &nidA), "NIM_ADD failed!\n");
+    ok(GetLastError() == ERROR_SUCCESS || GetLastError() == ERROR_NO_TOKEN,
+       "GetLastError() = %lu\n", GetLastError());
 
     /* using an invalid cbSize does work */
     nidA.cbSize = 3;
@@ -75,7 +84,10 @@ static void test_cbsize(void)
     ok(ret, "NIM_DELETE failed!\n");
     /* as icon doesn't exist anymore - now there will be an error */
     nidA.cbSize = sizeof(nidA);
+    SetLastError(0xdeadbeef);
     ok(!Shell_NotifyIconA(NIM_DELETE, &nidA) != !ret, "The icon was not deleted\n");
+    ok(GetLastError() == E_FAIL || GetLastError() == ERROR_TIMEOUT,
+       "GetLastError() = %lu\n", GetLastError());
 }
 
 START_TEST(systray)