Picoscope5243A, Runblock function not working properly

Hi,
I am using Picoscope5243A, in which i require runblock function to be implemented in Block mode, but somehow i am getting PICO_SEGMENT_OUT_OF_RANGE error(error no 0x26).

RunBlock(handle, 0, samplecount, timebase, out timeIndisposed,0, null, IntPtr.Zero);

Please suggest any suggestion .


Thanks
Sumit

Can we see you function declarations ?