General TWAIN question about UI

[allenmpcx]

Hello:

When I use this code:

TW_FILESYSTEM fs;

memset(fs,0,sizeof(fs));
strcpy(fs.InputName,”FOLDER”);
fs.Recursive = 1;

DSMEntry( &app, &src, DG_CONTROL, DAT_FILESYSTEM, MSG_DELETE, &fs );

I always get a failure. When I look at the condition code, I get Bad Protocol. Please help! The TWAIN specification says that the Bad Protocol means it isn’t supported, and the twain.h file says its a bad MSG, DAT and DG combination. If it isn’t supported, how come the UI can delete the images?? How can I delete the images??? Am I doing something wrong?

[Author]

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