public static string GetValue(object comObj, string name)
{
if (comObj == null)
{
return(String.Empty);
}
if (!Marshal.IsComObject(comObj))
{
//The specified object is not a COM object
return(String.Empty);
}
IDispatch dispatch = comObj as IDispatch;
if (dispatch == null)
{
//The specified COM object doesn't support getting type information
return(String.Empty);
}
try
{
int language_id = 0;
int DISPATCH_METHOD = 0x1;
int DISPATCH_PROPERTYGET = 0x2;
int[] displayIDs = new int[1];
Guid empty = Guid.Empty;
string[] names = new string[] { name };
dispatch.GetIDsOfNames(ref empty, names, names.Length, language_id, displayIDs);
System.Runtime.InteropServices.ComTypes.DISPPARAMS dspp = new System.Runtime.InteropServices.ComTypes.DISPPARAMS();
System.Runtime.InteropServices.ComTypes.EXCEPINFO ei = new System.Runtime.InteropServices.ComTypes.EXCEPINFO();
IntPtr[] arg_err = new IntPtr[10];
object result;
if (1 == displayIDs.Length)
{
dispatch.Invoke(displayIDs[0], ref empty, language_id, (ushort)(DISPATCH_METHOD | DISPATCH_PROPERTYGET), ref dspp, out result, ref ei, arg_err);
return(result.ToString());
}
return(String.Empty);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
return(String.Empty);
}
}
public EXCEPINFOCover(System.Runtime.InteropServices.ComTypes.EXCEPINFO ei)
{
data = ei;
}
public EXCEPINFOCover()
{
data = new System.Runtime.InteropServices.ComTypes.EXCEPINFO();
}
public EXCEPINFOCover()
{
data = new System.Runtime.InteropServices.ComTypes.EXCEPINFO();
}
