[PATCH v2 1/3] dwmapi: Improve DwmGetWindowAttribute stub.

[Gabriel Ivăncescu]

Signed-off-by: Gabriel Ivăncescu <gabrielopcode at gmail.com>
---
 dlls/dwmapi/dwmapi_main.c | 26 ++++++++++++++++++++++++--
 1 file changed, 24 insertions(+), 2 deletions(-)

diff --git a/dlls/dwmapi/dwmapi_main.c b/dlls/dwmapi/dwmapi_main.c
index 6378a09..e976fda 100644
--- a/dlls/dwmapi/dwmapi_main.c
+++ b/dlls/dwmapi/dwmapi_main.c
@@ -205,9 +205,31 @@ BOOL WINAPI DwmDefWindowProc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam,
  */
 HRESULT WINAPI DwmGetWindowAttribute(HWND hwnd, DWORD attribute, PVOID pv_attribute, DWORD size)
 {
-    FIXME("(%p %d %p %d) stub\n", hwnd, attribute, pv_attribute, size);
+    if (!hwnd) return E_HANDLE;
+    if (!pv_attribute) return E_INVALIDARG;
 
-    return E_NOTIMPL;
+    switch (attribute)
+    {
+    case DWMWA_NCRENDERING_ENABLED:
+        if (size < sizeof(BOOL)) return E_INVALIDARG;
+
+        WARN("DWMWA_NCRENDERING_ENABLED: always returning FALSE.\n");
+        *(BOOL*)(pv_attribute) = FALSE;
+        break;
+
+    case DWMWA_CLOAKED:
+        if (size < sizeof(DWORD)) return E_INVALIDARG;
+
+        WARN("DWMWA_CLOAKED: always returning 0.\n");
+        *(DWORD*)(pv_attribute) = 0;
+        break;
+
+    default:
+        FIXME("unimplemented attribute %d, size %u, for hwnd %p.\n", attribute, size, hwnd);
+        return E_INVALIDARG;
+    }
+
+    return S_OK;
 }
 
 /**********************************************************************
-- 
2.21.0