DllImport from wintab32.dll

[Paul Schabl]

Hi,

i'm trying to access my Summasketch tablet via wintab32.dll.
I can successfully call WTOpen() and WTMgrOpen().

I want to catch packets sent from the tablet.
First i tried with WTPacketsGet() but the packet count it returns is always
zero.
Then i thought maybe i should use the following function and provide a
callback:
HWTHOOK WTMgrPacketHookEx(hMgr, nType, lpszModule, lpszHookProc)

Howerver i have no idea how to implement it, maybe somebody fo you has.
Does anybody of you have experience with calling wintab32.dll, or can you
point me
to some resources?

If you want i can ofcourse provide the source of my WinTablet class.

Thanks and regards,
Paul

 

[Paul Schabl]

Ok , i can receive packets now with WTPacketsGet() - the problem was just
inproper use of marshalling.

A struct in the header has a member: TCHAR lcName[40]
which i had to marshal this way:
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 40)]

public string Name;


Regards,
Paul