public static void SetProperty(this IDispatchEx dispatchEx, string name, bool ignoreCase, params object[] args)
{
if (args.Length < 1)
{
throw new ArgumentException("Invalid argument count", "args");
}
var dispid = dispatchEx.GetDispIDForName(name, true, ignoreCase);
using (var argVariantArrayBlock = new CoTaskMemVariantArgsBlock(args))
{
using (var namedArgDispidBlock = new CoTaskMemBlock(sizeof(int)))
{
EXCEPINFO excepInfo;
Marshal.WriteInt32(namedArgDispidBlock.Addr, SpecialDispIDs.PropertyPut);
var dispArgs = new DISPPARAMS {
cArgs = args.Length, rgvarg = argVariantArrayBlock.Addr, cNamedArgs = 1, rgdispidNamedArgs = namedArgDispidBlock.Addr
};
var result = dispatchEx.InvokeEx(dispid, 0, DispatchFlags.PropertyPut | DispatchFlags.PropertyPutRef, ref dispArgs, IntPtr.Zero, out excepInfo);
if (result == HResult.DISP_E_MEMBERNOTFOUND)
{
// VBScript objects can be finicky about property-put dispatch flags
result = dispatchEx.InvokeEx(dispid, 0, DispatchFlags.PropertyPut, ref dispArgs, IntPtr.Zero, out excepInfo);
if (result == HResult.DISP_E_MEMBERNOTFOUND)
{
result = dispatchEx.InvokeEx(dispid, 0, DispatchFlags.PropertyPutRef, ref dispArgs, IntPtr.Zero, out excepInfo);
}
}
HResult.Check(result);
}
}
}
public static void SetProperty(this IDispatchEx dispatchEx, string name, bool ignoreCase, object[] args)
{
if (args.Length < 1)
{
throw new ArgumentException("Invalid argument count", "args");
}
int dispid;
var result = dispatchEx.GetDispID(name, DispatchNameFlags.Ensure | (ignoreCase ? DispatchNameFlags.CaseInsensitive : DispatchNameFlags.CaseSensitive), out dispid);
if (result == RawCOMHelpers.HResult.DISP_E_UNKNOWNNAME)
{
throw new NotSupportedException("Object does not support dynamic properties");
}
Marshal.ThrowExceptionForHR(result);
using (var argVariantArrayBlock = new CoTaskMemVariantArgsBlock(args))
{
using (var namedArgDispidBlock = new CoTaskMemBlock(sizeof(int)))
{
EXCEPINFO excepInfo;
Marshal.WriteInt32(namedArgDispidBlock.Addr, SpecialDispIDs.PropertyPut);
var dispArgs = new DISPPARAMS { cArgs = args.Length, rgvarg = argVariantArrayBlock.Addr, cNamedArgs = 1, rgdispidNamedArgs = namedArgDispidBlock.Addr };
dispatchEx.InvokeEx(dispid, 0, DispatchFlags.PropertyPut | DispatchFlags.PropertyPutRef, ref dispArgs, IntPtr.Zero, out excepInfo);
}
}
}