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Reply To: Is TWAIN Still alive ?

Forums › TWAIN Classic › Is TWAIN Still alive ? › Reply To: Is TWAIN Still alive ?

July 11, 2006 at 4:56 pm #23424
AGK512
Participant
  • Topics - 1
  • Replies - 6
  • Total Posts - 7

Gabe

I’ve put my answers to your questions below starting with >

Thanks again for your help

Kind Regards

Andrew

PS Are the structures in the TWAIN_32.DLL 1 byte aligned ? just a thoughht although it might be a red herring ! 🙂

i havent checked your defs but for the final call, i wonder about a few things,

> OK

if 0 is going to work in place of NULL for the second parameter.

> The language does not have a NULL ‘value’ so I don’t think I can do anything else

try taking out the first addressof – the one before AppId

> Why? The spec says this requires a pointer to the TW_IDENTITY structure as it needs to write back to it ?

the datatype for your openDsm constant ought to be ushort – maybe it already is I cant tell.

> I don’t think the constants in the language I’m using can have a ‘type’

just before you place the call into twain, there is this:
get window_handle of myPanel to hWnd
does that mean that your hWnd variable hold the handle to your application?

> hWnd will hold the windows window handle for the applications main window

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