We are currently working on addressing issues with the FullDemo Visual Basic .NET program and DTWAIN.
The main issue is that the current demo uses 32-bit integers for the TWAIN source and session handles, however this will not work for 64-bit VB .Net programs.
Please note that you can still use VB .Net in 64 bit using the current language bindings, but you should not use the current demo program as a guide, since it will probably only work for 32-bit programs.
The updated demo program will be available in the next release (which will be 5.3.0.5 as of this issue).
We are currently working on addressing issues with the FullDemo Visual Basic .NET program and DTWAIN.
The main issue is that the current demo uses 32-bit integers for the TWAIN source and session handles, however this will not work for 64-bit VB .Net programs.
Please note that you can still use VB .Net in 64 bit using the current language bindings, but you should not use the current demo program as a guide, since it will probably only work for 32-bit programs.
The updated demo program will be available in the next release (which will be 5.3.0.5 as of this issue).