CallByName

[Carl]

Is it possible to retrieve the parameters for a method so that I can dynamically
display what a method is expecting when using CallByName ?

I want to build a test harness so that the user can enter the object and
method and then be asked to enter the required parameters

Cheers

[Rohit Wason]

No,
By default VB doesn't provide a Java-like interface to read the parameters
etc. information for a method or the classes, but for a typelib (.tlb or
.dll), you can query all the interfaces and the method details using TLIBInfo
library that comes with VB.
-Rohit

"Carl" <carl.dickinson@wms-plc.com> wrote:
>
>Is it possible to retrieve the parameters for a method so that I can dynamically
>display what a method is expecting when using CallByName ?
>
>I want to build a test harness so that the user can enter the object and
>method and then be asked to enter the required parameters
>
>Cheers

[Matthew Curland]

> No,
> By default VB doesn't provide a Java-like interface to read the parameters
> etc. information for a method or the classes, but for a typelib (.tlb or
> dll), you can query all the interfaces and the method details using
TLIBInfo
> library that comes with VB.
> -Rohit

The library shows up as 'TypeLib Information' in the project/references
dialog, and is implemented in tlbinf32.dll. There's a tlbinf32.chm help file
at http://msdn.microsoft.com/vbasic/downloads/addon.asp. Drop it in your
system[32] directory with tlbinf32.dll for context sensitive help in VB.
There's also a VBPJ article on this topic in November 1999 black-belt
column. If you don't know the parameters up front, you'll need to use
TLI.InvokeHook and TLI.InvokeHookArray instead of CallByName. -Matt