Hi I'm using TDMS format to my project.
I succedd to log the whole data into TDMS file by using the
DAQmxConfigureLogging(taskHandle, logFile.toAscii().constData() ,DAQmx_Val_LogAndRead,"GroupName",DAQmx_Val_OpenOrCreate)
Now my problem is that when I'm trying to read the TDMS file I can't open it.
My code of reading is (from the TDMStesing example):
unsigned int
length;
int ddcError = 0;
DDCFileHandle file = 0;
char *property = 0;
// Read file name
ddcChk (DDC_OpenFileEx (FILE_PATH, "TDMS", 1, &file));
ddcChk (DDC_GetFileStringPropertyLength (file, DDC_FILE_NAME, &length));
nullChk (property = (char*)malloc (length + 1));
ddcChk (DDC_GetFileProperty (file, DDC_FILE_NAME, property, length + 1));
printf ("File name property: %s\n", property);
free (property);
property = 0;
// Read file description, if present
if (DDC_GetFileStringPropertyLength (file, DDC_FILE_DESCRIPTION, &length) >= 0)
{
nullChk (property = (char*)malloc (length + 1));
ddcChk (DDC_GetFileProperty (file, DDC_FILE_DESCRIPTION, property, length + 1));
printf ("File description property: %s\n", property);
free (property);
property = 0;
}
// Read the channel groups
ddcChk (ReadGroups (file));
Error:
if (property)
free (property);
if (file)
DDC_CloseFile (file);
return ddcError;
When I debug the code I got the error code of -6204 at the DDC_OpenFileEx function
Error details http://zone.ni.com/reference/en-XX/help/370051K-01/cvi/cvidiademlibraryerrors/
| -6204 |
DDC_UnexpectedError |
An unexpected error occurred in the library. |
Need help...
My setup:
Hardware: NI 9234
NI-Daqmx: device driver 9.4.0f5
Windows version: XP (sp3)
Language: Qt (C++)
