public static object Invoke(this IDispatch dispatch, params object[] args)
{
using (var argVariantArrayBlock = new CoTaskMemVariantArgsByRefBlock(args))
{
using (var resultVariantBlock = new CoTaskMemVariantBlock())
{
var dispArgs = new DISPPARAMS {
cArgs = args.Length, rgvarg = argVariantArrayBlock.Addr, cNamedArgs = 0, rgdispidNamedArgs = IntPtr.Zero
};
HResult.Check(dispatch.Invoke(SpecialDispIDs.Default, ref iid, 0, DispatchFlags.Method, ref dispArgs, resultVariantBlock.Addr, out _, out _));
return(Marshal.GetObjectForNativeVariant(resultVariantBlock.Addr));
}
}
}
public static object Invoke(this IDispatchEx dispatchEx, bool asConstructor, params object[] args)
{
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
};
HResult.Check(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, params object[] args)
{
var dispid = dispatchEx.GetDispIDForName(name, false, ignoreCase);
if (dispid == SpecialDispIDs.GetEnumerator)
{
return(dispatchEx.GetProperty(SpecialMemberNames.NewEnum, ignoreCase, args));
}
using (var argVariantArrayBlock = new CoTaskMemVariantArgsByRefBlock(args))
{
using (var resultVariantBlock = new CoTaskMemVariantBlock())
{
var dispArgs = new DISPPARAMS {
cArgs = args.Length, rgvarg = argVariantArrayBlock.Addr, cNamedArgs = 0, rgdispidNamedArgs = IntPtr.Zero
};
HResult.Check(dispatchEx.InvokeEx(dispid, 0, DispatchFlags.Method, ref dispArgs, resultVariantBlock.Addr, out _));
return(Marshal.GetObjectForNativeVariant(resultVariantBlock.Addr));
}
}
}
public static object InvokeMethod(this IDispatch dispatch, string name, params object[] args)
{
var dispid = dispatch.GetDispIDForName(name);
if (dispid == SpecialDispIDs.GetEnumerator)
{
return(dispatch.GetProperty(SpecialMemberNames.NewEnum, args));
}
using (var argVariantArrayBlock = new CoTaskMemVariantArgsByRefBlock(args))
{
using (var resultVariantBlock = new CoTaskMemVariantBlock())
{
EXCEPINFO excepInfo;
uint argErr;
var dispArgs = new DISPPARAMS {
cArgs = args.Length, rgvarg = argVariantArrayBlock.Addr, cNamedArgs = 0, rgdispidNamedArgs = IntPtr.Zero
};
HResult.Check(dispatch.Invoke(dispid, iid, 0, DispatchFlags.Method, ref dispArgs, resultVariantBlock.Addr, out excepInfo, out argErr));
return(Marshal.GetObjectForNativeVariant(resultVariantBlock.Addr));
}
}
}
public static object Invoke(this IDispatchEx dispatchEx, object[] args)
{
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 };
dispatchEx.InvokeEx(SpecialDispIDs.Default, 0, 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 };
dispatchEx.InvokeEx(dispid, 0, DispatchFlags.Method, ref dispArgs, resultVariantBlock.Addr, out excepInfo);
return Marshal.GetObjectForNativeVariant(resultVariantBlock.Addr);
}
}
}
