include: Add IAMVfwCaptureDialogs declaration.

include/axextend.idl

@@ -1258,3 +1258,23 @@ interface IAMGraphBuilderCallback : IUnknown
     HRESULT CreatedFilter(
         [in] IBaseFilter *pFil);
 };
+
+[
+    local,
+    object,
+    uuid(d8d715a0-6e5e-11d0-b3f0-00aa003761c5),
+    pointer_default(unique)
+]
+interface IAMVfwCaptureDialogs : IUnknown
+{
+    HRESULT HasDialog(
+            [in] int dialog);
+    HRESULT ShowDialog(
+            [in] int dialog,
+            [in] HWND hwnd);
+    HRESULT SendDriverMessage(
+            [in] int dialog,
+            [in] int msg,
+            [in] long data1,
+            [in] long data2);
+};