OpenEuphoria

Re: ActiveX Controls (ocx) in win32lib

• Posted by Rad <radhx at redif?ma?l.com> Aug 23, 2007
• 569 views

Rad wrote:
> 
> I am having difficulties calling a function from ocx with a "string" input
> parameter and boolean return value.
>

This is the feedback I got from the author of ActiveX Control:
 
======================================
I'm not sure which language you are using, but 1Way uses a VARIANT_BOOL data
type which is compatible with the .NET system.boolean data type.

This is a 4-byte boolean value. The internal representation is 

hex 00000000 = False
any non-zero value is considered to be True.

Usually True is set as hex FFFFFFFF (or -1 decimal).

You are getting a value of 65535 which is hex FFFF considered as an unsigned
integer. So it looks like your program is only looking at 2 bytes, rather than 4,
and it is taking it to be an unsigned integer rather than a boolean value.
===============================================

Regards,
Rad.