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#1
The dynamic linking uses labjackud.dll (see code above) but labjackud.dll is
no part of DevC_LJUD.zip and LabJackUDSetupV315.exe .
I use a Borland C Compiler under Windows 7 (LabJackUDSetupV315.exe works fine)
but where can i found labjackud.dll Version 3.15 for dynamic linking ?
....
//Start of LoadLabJackUD function.
//This is the function used to dynamically load the DLL.
void LoadLabJackUD (void)
{
//Now try and load the DLL.
if (hDLLInstance = LoadLibrary("labjackud.dll"))
{
//If successfully loaded, get the address of the functions.
m_pListAll = (tListAll)::GetProcAddress(hDLLInstance,"ListAll");
....
#2
We are using labjack dll file with c#.Labjack u3 can not pick up negative value ,but DAQ Factory can. If possible , could you add c# sample source code.
#3
Low-voltage or high-voltage channel? A single-ended low-voltage channel typically does not go negative. See Section 2.6 for more information. Try making a call to eAIN and see if it acts as expected.
#4
The LabJackUD.dll for version 3.15 should be automatically placed in C:\windows\system32 after runing the LabJackUDSetupV315.exe installer. That should work for dynamic linking.