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Re: DS is not listed in the Select Source dialog

Forums › TWAIN Classic › How to get my data source displayed? › Re: DS is not listed in the Select Source dialog

April 3, 2008 at 4:08 pm #24446
dpenney
Participant
  • Topics - 3
  • Replies - 66
  • Total Posts - 69

I think it has one of the following problems:

1) It has run-time link issues (it requires a DLL that is not present) so the DSM cannot load it.
2) It’s not exporting the DS_Entry function. If it has a DS_Entry function, the name may be mangled by the linker.
3) it’s not properly handling DG_CONTROL/DAT_IDENTITY/MSG_GET.

If you have Microsoft’s Dependancy Walker (depends.exe, included with Developer Studio) you can check items 1 & 2. For item 3, set a break point in your DS_Entry function and step the code to see what’s going on.

What tools are you using to build your DS?
–

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