dwmapi: Add a few stub implementations.

dlls/dwmapi/dwmapi.spec

@@ -25,9 +25,9 @@
 @ stub DwmDetachMilContent
 @ stub DwmEnableBlurBehindWindow
 @ stub DwmEnableMMCSS
-@ stub DwmExtendFrameIntoClientArea
-@ stub DwmFlush
-@ stub DwmGetColorizationColor
+@ stdcall DwmExtendFrameIntoClientArea(long ptr)
+@ stdcall DwmFlush()
+@ stdcall DwmGetColorizationColor(ptr long)
 @ stub DwmGetCompositionTimingInfo
 @ stub DwmGetGraphicsStreamClient
 @ stub DwmGetGraphicsStreamTransformHint

dlls/dwmapi/dwmapi_main.c

@@ -70,6 +70,36 @@ HRESULT WINAPI DwmEnableComposition(UINT uCompositionAction)
     return S_OK;
 }
 
+/**********************************************************************
+ *           DwmExtendFrameIntoClientArea    (DWMAPI.@)
+ */
+HRESULT WINAPI DwmExtendFrameIntoClientArea(HWND hwnd, const MARGINS* margins)
+{
+    FIXME("(%p, %p) stub\n", hwnd, margins);
+
+    return E_NOTIMPL;
+}
+
+/**********************************************************************
+ *           DwmGetColorizationColor      (DWMAPI.@)
+ */
+HRESULT WINAPI DwmGetColorizationColor(DWORD *colorization, BOOL opaque_blend)
+{
+    FIXME("(%p, %d) stub\n", colorization, opaque_blend);
+
+    return E_NOTIMPL;
+}
+
+/**********************************************************************
+ *                  DwmFlush              (DWMAPI.@)
+ */
+HRESULT WINAPI DwmFlush()
+{
+    FIXME("() stub\n");
+
+    return E_NOTIMPL;
+}
+
 /**********************************************************************
  *           DwmSetWindowAttribute         (DWMAPI.@)
  */

include/dwmapi.h

@@ -32,6 +32,8 @@ extern "C" {
 DECLARE_HANDLE(HTHUMBNAIL);
 
 DWMAPI DwmEnableComposition(UINT);
+DWMAPI DwmExtendFrameIntoClientArea(HWND,const MARGINS*);
+DWMAPI DwmGetColorizationColor(DWORD*,BOOL);
 DWMAPI DwmIsCompositionEnabled(BOOL*);
 DWMAPI DwmSetWindowAttribute(HWND, DWORD, LPCVOID, DWORD);
 DWMAPI DwmUnregisterThumbnail(HTHUMBNAIL);