public void AbrirGaveta()
{
try
{
byte[] comandos = null;
switch (printerdriver.impressoraModelo)
{
case (byte)ImpressoraModelo.EPSON:
comandos = new byte[5] {
0x1B, 0x70, 0x00, 0x0A, 0x64
};
break;
case (byte)ImpressoraModelo.BEMATECH:
comandos = new byte[5] {
0x1B, 0x70, 0x00, 0x0A, 0x64
};
break;
case (byte)ImpressoraModelo.DARUMA:
comandos = new byte[2] {
0x1B, 0x70
};
break;
case (byte)ImpressoraModelo.ELGIN:
comandos = new byte[5] {
0x1B, 0x70, 0x00, 0x0A, 0x64
};
break;
default:
break;
}
IntPtr unmanagedPointer = Marshal.AllocHGlobal(comandos.Length);
Marshal.Copy(comandos, 0, unmanagedPointer, comandos.Length);
Int32 dwCount = comandos.Length;
PrinterService.SendBytesToPrinter(printerdriver.DeviceName, "", unmanagedPointer, dwCount);
Marshal.FreeCoTaskMem(unmanagedPointer);
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
