SeqError opening-closing-opening different sources.

[fcetrini]

Hi everybody, here is my problem:
my application needs to open, configure and close multiple twain sources into the same execution run.
I mean, enumerate sources, open the first one, get parameters, close it, then open a second source and so on.

This is my calls sequence:
1) Control/Parent/OpenDSM to open the source manager
2) Control/Identity/OpenDs to open the selected source
3) Control/UserInterface/EnableDsUiOnly to show twain configuration panel
4) Control/CustomDSData/Get to retrieve parameters
5) Control/Identity/CloseDs to close the selected source
6) Control/Parent/CloseDsm to close the source manager

Now, this sequence works fine as long as the sources are different versions of the same driver: e.g. kodak i1210 and i1220 shares the same driver, but if I try to jump from a source referring driver A to a source referring driver B I got seqError on the second source opening call (Control/Identity/OpenDs).

I’ve also tried to jump between different driver without closing and reopening source manager, but the behavior is the same.
Any ideas? Thank you!

Fabio

[Adam]

Hi Fabio,

Did you try to close the source before your second step?

1) Control/Parent/OpenDSM to open the source manager
2) Close source.
3) Control/Identity/OpenDs to open the selected source
4) Control/UserInterface/EnableDsUiOnly to show twain configuration panel
5) Control/CustomDSData/Get to retrieve parameters
6) Control/Identity/CloseDs to close the selected source
7) Control/Parent/CloseDsm to close the source manager

____________________
Adam
Dynamsoft: The leading provider of version control software and TWAIN SDK

[Author]

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