OpenTap.IVisa Interface Reference

Interface implemented by VISA libraries More...

Public Member Functions
int	viOpenDefaultRM (out int sesn)
	Open default RM session
int	viFindRsrc (int sesn, string expr, out int vi, out int retCount, StringBuilder desc)
	Find device
int	viFindNext (int vi, StringBuilder desc)
	Find next device
int	viParseRsrc (int sesn, string desc, ref short intfType, ref short intfNum)
	Parse resource string to get interface information
int	viParseRsrcEx (int sesn, string desc, ref short intfType, ref short intfNum, StringBuilder rsrcClass, StringBuilder expandedUnaliasedName, StringBuilder aliasIfExists)
	Parse resource string to get extended interface information
int	viOpen (int sesn, string viDesc, int mode, int timeout, out int vi)
	Open session
int	viClose (int vi)
	Close session
int	viGetAttribute1 (int vi, int attrName, out byte attrValue)
	Get attribute, returning a byte
int	viGetAttribute2 (int vi, int attrName, StringBuilder attrValue)
	Get attribute, filling a pre-allocated StringBuilder buffer
int	viGetAttribute3 (int vi, int attrName, out int attrValue)
	Get attribute, returning an int
int	viSetAttribute1 (int vi, int attrName, byte attrValue)
	Set attribute, providing a byte value
int	viSetAttribute2 (int vi, int attrName, int attrValue)
	Set attribute, providing an int value
int	viStatusDesc (int vi, int status, StringBuilder desc)
	Get status code description
int	viEnableEvent (int vi, int eventType, short mechanism, int context)
	Enable event
int	viDisableEvent (int vi, int eventType, short mechanism)
	Disable event
int	viInstallHandler (int vi, int eventType, viEventHandler handler, int UserHandle)
	Install handler
int	viUninstallHandler (int vi, int eventType, viEventHandler handler, int userHandle)
	Uninstall handler
unsafe int	viRead (int vi, ArraySegment< Byte > buffer, int count, out int retCount)
	Read data from device
unsafe int	viWrite (int vi, ArraySegment< Byte > buffer, int count, out int retCount)
	Write data to device
int	viReadSTB (int vi, ref short status)
	Read status byte
int	viClear (int vi)
	Clear a device
int	viLock (int vi, int lockType, int timeout, string requestedKey, StringBuilder accessKey)
	Lock resource
int	viUnlock (int vi)
	Unlock resource
delegate int	viEventHandler (int vi, int eventType, int context, int userHandle)
	Event handler prototype

Detailed Description

Interface implemented by VISA libraries