/// <summary>
/// How to use "PosExplorer" sample1.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnExample1_Click(object sender, System.EventArgs e)
{
//Use a Logical Device Name which has been set on the SetupPOS.
try
{
//Create PosExplorer
PosExplorer posExplorer = new PosExplorer();
DeviceInfo deviceInfo = null;
//Get DeviceInfo use devicecategory and logicalname.
deviceInfo = posExplorer.GetDevice(DeviceType.PosPrinter, m_strLogicalName);
m_PosCommon = (PosCommon)posExplorer.CreateInstance(deviceInfo);
//Open the device
m_PosCommon.Open();
//Get the exclusive control right for the opened device.
//Then the device is disable from other application.
m_PosCommon.Claim(1000);
//Enable the device.
m_PosCommon.DeviceEnabled = true;
//CheckHealth.
m_PosCommon.CheckHealth(Microsoft.PointOfService.HealthCheckLevel.Interactive);
//Close device
m_PosCommon.Close();
}
catch (Exception)
{
}
}
/// <summary>
/// When the method "closing" is called,
/// the following code is run.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnClose_Click(object sender, System.EventArgs e)
{
try
{
if (m_PosCommon != null)
{
//Cancel the device
m_PosCommon.DeviceEnabled = false;
//Release the device exclusive control right.
m_PosCommon.Release();
//Finish using the device.
m_PosCommon.Close();
}
}
catch (PosControlException)
{
}
}
private static void CloseDevice(PosCommon device)
{
if (device == null)
{
return;
}
try
{
if (device.Claimed)
{
device.Release();
}
}
catch
{
}
try
{
device.Close();
}
catch
{
}
}
/// <summary>
/// How to use "PosExplorer" sample2.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnExample2_Click(object sender, System.EventArgs e)
{
try
{
//Create PosExplorer
PosExplorer posExplorer = new PosExplorer();
DeviceInfo deviceInfo = null;
DeviceCollection deviceCollection;
//Get DeviceCollection use device categoly
deviceCollection = posExplorer.GetDevices(DeviceType.PosPrinter);
string[] astrLogicalNames;
Hashtable hashDevice = new Hashtable(0);
foreach (DeviceInfo devInfo in deviceCollection)
{
//if the device name is registered.
if (devInfo.LogicalNames.Length > 0)
{
astrLogicalNames = devInfo.LogicalNames;
for (int i = 0; i < astrLogicalNames.Length; i++)
{
if (!hashDevice.ContainsKey(astrLogicalNames[i]))
{
m_PosCommon = (PosCommon)posExplorer.CreateInstance(devInfo);
//Use Legacy Opos
//if(m_PosCommon.Compatibility.Equals(DeviceCompatibilities.Opos))
//Use Opos for .Net
if (m_PosCommon.Compatibility.Equals
(DeviceCompatibilities.CompatibilityLevel1))
{
try
{
//Register hashtable key:LogicalName,Value:DeviceInfo
hashDevice.Add(astrLogicalNames[i], devInfo);
}
catch (Exception)
{
}
}
}
}
}
}
deviceInfo = (DeviceInfo)hashDevice[m_strLogicalName];
m_PosCommon = (PosCommon)posExplorer.CreateInstance(deviceInfo);
//Open the device
m_PosCommon.Open();
//Get the exclusive control right for the opened device.
//Then the device is disable from other application.
m_PosCommon.Claim(1000);
//Enable the device.
m_PosCommon.DeviceEnabled = true;
//CheckHealth.
m_PosCommon.CheckHealth(Microsoft.PointOfService.HealthCheckLevel.Interactive);
//Close device
m_PosCommon.Close();
}
catch (Exception)
{
}
}