public static object Invoke(this IDispatchEx dispatchEx, object[] args, bool asConstructor)
{
using (var argVariantArrayBlock = new CoTaskMemVariantArgsByRefBlock(args))
{
using (var resultVariantBlock = new CoTaskMemVariantBlock())
{
EXCEPINFO excepInfo;
var dispArgs = new DISPPARAMS {
cArgs = args.Length, rgvarg = argVariantArrayBlock.Addr, cNamedArgs = 0, rgdispidNamedArgs = IntPtr.Zero
};
Marshal.ThrowExceptionForHR(dispatchEx.InvokeEx(SpecialDispIDs.Default, 0, asConstructor ? DispatchFlags.Construct : DispatchFlags.Method, ref dispArgs, resultVariantBlock.Addr, out excepInfo));
return(Marshal.GetObjectForNativeVariant(resultVariantBlock.Addr));
}
}
}
public static object InvokeMethod(this IDispatchEx dispatchEx, string name, bool ignoreCase, object[] args)
{
int dispid;
Marshal.ThrowExceptionForHR(dispatchEx.GetDispID(name, ignoreCase ? DispatchNameFlags.CaseInsensitive : DispatchNameFlags.CaseSensitive, out dispid));
using (var argVariantArrayBlock = new CoTaskMemVariantArgsByRefBlock(args))
{
using (var resultVariantBlock = new CoTaskMemVariantBlock())
{
EXCEPINFO excepInfo;
var dispArgs = new DISPPARAMS {
cArgs = args.Length, rgvarg = argVariantArrayBlock.Addr, cNamedArgs = 0, rgdispidNamedArgs = IntPtr.Zero
};
Marshal.ThrowExceptionForHR(dispatchEx.InvokeEx(dispid, 0, DispatchFlags.Method, ref dispArgs, resultVariantBlock.Addr, out excepInfo));
return(Marshal.GetObjectForNativeVariant(resultVariantBlock.Addr));
}
}
}