ADLINK PCI-7200 - Manual (Page 64)

52 C/C++ Libraries
5.10 _7200_DI_Channel
@ Description
This function is used to read data from digital input channels (bit).
There are 32 digital input channels on the PCI-7200. When this
function is performed, the digital input port is read and the value of
the corresponding channel is returned.
* channel means each bit of digital input port.
@ Syntax
Visual C++ (Windows 95)
int W_7200_DI_Channel (U8 di_ch_no, Boolean
*di_data)
Visual Basic (Windows 95)
W_7200_DI_Channel (ByVal di_ch_no As Byte,
di_data As Byte) As Long
C/C++ (DOS)
int _7200_DI_Channel (U8 di_ch_no, Boolean
*di_data)
@ Argument
di_ch_no: the DI channel number, the value has to be set
between 0 and 31.
di_data: return value, either 0 or 1.
@ Return Code
ERR_NoError
ERR_InvalidDIChannel