[liblouis-liblouisxml] Using liblouis and liblouisutdml from .NET
- From: Michael Whapples <mwhapples@xxxxxxx>
- To: liblouis-liblouisxml@xxxxxxxxxxxxx
- Date: Mon, 28 Oct 2013 09:09:11 +0000
Hello,
I am trying to use liblouis and liblouisutdml from .NET, but I am having
some problems with some function calls causing a crash.
I am using it from a C# project, using it using platform/invoke (IE.
with DllImport). This seemed simpler than using it through C++-cli.
For a time I am sure I had this all working, but then suddenly the
lou_setDataPath function call seemed to stop working, although other
function calls seem to still be working fine. My function definition of
the lou_setDataPath function is:
[DllImport("liblouis.dll", EntryPoint="lou_setDataPath",
CharSet=CharSet.Ansi, ExactSpelling=true)]
[return: MarshalAs(UnmanagedType.LPStr)]
public static extern String
SetDataPath([MarshalAs(UnmanagedType.LPStr)] String path);
I get no exceptions and the only information I get is that my
application exits with error code 0x4000001f on 32-bit and the 64-bit
version exits with error code 0x80000003. The Microsoft information is
less than helpful on these matters, giving me no clue as to the cause.
Interestingly if I load the 32-bit liblouis.dll in dependency walker it
reports errors in the DLL and the following appears in its warnings box:
Error: At least one module has an unresolved import due to a missing
export function in an implicitly dependent module.
Error: Modules with different CPU types were found.
I have tried recompiling a few times, even on a 32-bit system but still
get these warnings.
I do not get the warnings in dependency walker for the 64-bit DLL.
Other function calls I make to the liblouis.dll from my application seem
to work, but I need to use the lou_setDataPath function for it to be
possible to place files where I want and so of any use in my application.
What is wrong with this? How might I get more information as to the
cause of the problem?
Michael Whapples
For a description of the software, to download it and links to
project pages go to http://www.abilitiessoft.com
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