How do I create a directory within CVI?

[Yo_Josh]

How do I create a directory from within CVI?

[test_man]

Creates a new directory based on the specified directory name.

Note:  Only one directory can be created at a time.

/*-------------------- Prototype ---------------------*/
int MakeDir (char Directory_Name[]);

Utility Library\Diretory Utilities

[kevin.key]

This seems really straight forward, but for some reason adding a call to MakeDir gives this error when I compile:

Undefined symbol '_MakeDir@4' referenced in "report.c"

However, I have included utility.h. So I'm not sure what the problem is. Also, the project is real-time only. Any ideas?

[JensT]

Maybe CreateDirectoryA might work (according to http://zone.ni.com/reference/en-XX/help/370051K-01/cvirtmodulehelp/windowssdkfuncsinrt/ this function should be available in RT)

For parameter definition see windows sdk help.

[kevin.key]

I found kernel32_lvrt.lib on my desktop. I couldn't find any header files. How do I go about including this library in my project?

[JensT]

windows.h

put it at top of your includes

[kevin.key]

Thanks, I'm having trouble finding documentation for the sdk library.

[JensT]

in CVI: Help/Windows SDK

What i forgot to say: you must have Windows SDK installed with CVI.

Here an extract:

BOOL CreateDirectory(
  LPCTSTR lpPathName,                         // directory name
  LPSECURITY_ATTRIBUTES lpSecurityAttributes  // SD
);

You can set lpSecurityAttributes to 0 for RT systems.

[jlbjerke]

So am I to gather that the utility.h and/or the MakeDir method is not RT safe?  Is this why it does not work?

[JensT]

I don't know if it is safe or not. I only know that this function is not contained in the RT library.

Maybe a National Instruments representative can answer this question.

In the meantime you can use the SDK funktion.

... and while there is a workaround there is no need to change anything