USB-I/O Interface Adapter GPIO-24. Programmer's Reference Manual.
2.1.2. GPIO_Uninit()
GPIO_RESULT GPIO_GetDeviceCount( int* pDevNumber );
The GPIO_GetDeviceCount() function retrieves the number of GPIO-24 adapters that are currently connected to the computer.
Parameters:
- pDevNumber
Pointer to an integer variable to be filled with the number of detected GPIO-24 adapters.
Return values:
- GPIO_S_SUCCESS
Function call succeeded.
- GPIO_E_NOT_INITIALIZED
Library has not been initialized.
