private void Button_OPEN_Click(object sender, EventArgs e)
{
for (var i = 0; i < CONNECTED_PRINTER_LIST.Count; i++)
{
if (CONNECTED_PRINTER_LIST[i].USB_SYMBOLIC_NAME.Equals(comboBox_Printer.Text))
{
Selected_Printer = CONNECTED_PRINTER_LIST[i];
Selected_Printer.READ_TIMEOUT = 50;
Selected_Printer.WRITE_TIMEOUT = 1000;
if (Selected_Printer.OpenDevice())
{
timer1.Enabled = true;
button_Refresh.Enabled = false;
button_Open.Enabled = false;
comboBox_Printer.Enabled = false;
button_closeport.Enabled = true;
button_Send.Enabled = true;
checkBox_printer.Enabled = false;
checkBox_scanner.Enabled = false;
//button_sendFile.Enabled = true;
TextBox_fileName_TextChanged(this, EventArgs.Empty);
}
else
{
_logger.AddText("Port open failure", (byte)DataDirection.Error, DateTime.Now, TextLogger.TextLogger.TextFormat.PlainText);
}
return;
}
}
}
private void Enum_USB_device(ref List <CePrinter> Printer_USB_list)
{
IntPtr hDevInfoSet;
SP_DEVINFO_DATA DeviceInfoData;
var confRet = 0;
//get all USB Symbolic links
var Symb_Link = new List <string>();
Symb_Link = GetSymbolycLinkName();
//devs -> handle to device information set
hDevInfoSet = SetupDiGetClassDevs(ref m_pGuid, IntPtr.Zero, IntPtr.Zero,
DIGCF_PRESENT | DIGCF_INTERFACEDEVICE);
for (var i = 0;; i++)
{
//SetupDiEnumDeviceInterfaces enumerates the device interfaces that
//are contained in a device information set
var dia = new SP_DEVICE_INTERFACE_DATA();
dia.cbSize = Marshal.SizeOf(dia);
if (!SetupDiEnumDeviceInterfaces(hDevInfoSet, IntPtr.Zero, ref m_pGuid, i, ref dia))
{
break;
}
//SetupDiEnumDeviceInfo returns a SP_DEVINFO_DATA structure
DeviceInfoData = new SP_DEVINFO_DATA();
DeviceInfoData.cbSize = Marshal.SizeOf(DeviceInfoData);
if (!SetupDiEnumDeviceInfo(hDevInfoSet, i, ref DeviceInfoData))
{
break;
}
uint len = 0;
//CM_Get_Device_ID_Size returns size for CM_Get_Device_ID
confRet = CM_Get_Device_ID_Size(ref len, DeviceInfoData.DevInst, 0);
var t = new char[len];
//CM_Get_Device_ID returns crah[] with the registry key path of the device
confRet = CM_Get_Device_ID(DeviceInfoData.DevInst, t, len, 0);
if (confRet == CR_SUCCESS)
{
var str = "";
for (var f = 0; f < t.Length; f++)
{
str += t[f].ToString();
}
var temp_dev = new CePrinter();
if (str.Contains("MI"))
{
var old_devInst = DeviceInfoData.DevInst;
DeviceInfoData = new SP_DEVINFO_DATA();
DeviceInfoData.cbSize = Marshal.SizeOf(DeviceInfoData);
if (!SetupDiEnumDeviceInfo(hDevInfoSet, i, ref DeviceInfoData))
{
break;
}
//multi interface device
//get parent device
DeviceInfoData.DevInst = 0;
confRet = CM_Get_Parent(out DeviceInfoData.DevInst, old_devInst, 0);
confRet = CM_Get_Device_ID_Size(ref len, DeviceInfoData.DevInst, 0);
t = new char[len];
confRet = CM_Get_Device_ID(DeviceInfoData.DevInst, t, len, 0);
str = "";
for (var f = 0; f < t.Length; f++)
{
str += t[f].ToString();
}
}
//get USB ADDRESS NUMBER from str
temp_dev.USB_ADDRESS_NUMBER = str[str.Length - 1].ToString();
//get PID from registry key path
if (str.Contains("PID"))
{
for (var a = 0; a < str.Length - 6; a++)
{
try
{
if (str[a].ToString().ToUpper().Equals("P"))
{
if (str[a + 1].ToString().ToUpper().Equals("I"))
{
if (str[a + 2].ToString().ToUpper().Equals("D"))
{
temp_dev.PRINTER_PID = str[a + 4] + str[a + 5].ToString() + str[a + 6] +
str[a + 7];
}
}
}
}
catch
{
}
}
}
//assign USB symbolic link
for (var q = 0; q < Symb_Link.Count; q++)
{
if (Symb_Link[q].ToUpper().Contains("PID_" + temp_dev.PRINTER_PID))
{
//printer founded!!!
temp_dev.USB_SYMBOLIC_NAME = Symb_Link[q];
Symb_Link[q] = "";
break;
}
}
Printer_USB_list.Add(temp_dev);
}
}
}