async void OnPrint2dCodeClicked(object sender, EventArgs e)
{
// Prepares to communicate with the printer
_printer = await OpenPrinterService(_connectionInfo);
if (_printer == null)
{
return;
}
try
{
await _printSemaphore.WaitAsync();
// note : Page mode and transaction mode cannot be used together between IN and OUT.
// When "setTransaction" function called with "MPOS_PRINTER_TRANSACTION_IN", print data are stored in the buffer.
await _printer.setTransaction((int)MPosTransactionMode.MPOS_PRINTER_TRANSACTION_IN);
// Printer Setting Initialize
await _printer.directIO(new byte[] { 0x1b, 0x40 });
await _printer.printQRCode("20542471256|01|f001|102.00|12.301|06|1043679394|fhfjhg98987uu",
(int)MPos2dCodeType.MPOS_BARCODE_QRCODE_MODEL2,
(int)MPosAlignment.MPOS_ALIGNMENT_CENTER,
7, // Size
(int)MPosQRCodeECCLevel.MPOS_QRCODE_ECC_LEVEL_Q);
await _printer.printPDF417("20542471256|01|f001|102.00|12.301|06|1043679394|fhfjhg98987uu",
(int)MPos2dCodeType.MPOS_BARCODE_PDF417,
(int)MPosAlignment.MPOS_ALIGNMENT_LEFT,
0, // number of columns
0, // number of rows
3, // module Width
3, // module Height
(int)MPosPDF417ECCLevel.MPOS_PDF417_ECC_LEVEL_0);
// Feed to tear-off position (Manual Cutter Position)
await _printer.directIO(new byte[] { 0x1b, 0x4a, 0xaf });
}
catch (Exception ex)
{
await DisplayAlert("Exception", ex.ToString(), "OK");
}
finally
{
// Printer starts printing by calling "setTransaction" function with "MPOS_PRINTER_TRANSACTION_OUT"
await _printer.setTransaction((int)MPosTransactionMode.MPOS_PRINTER_TRANSACTION_OUT);
// If there's nothing to do with the printer, call "closeService" method to disconnect the communication between Host and Printer.
_printSemaphore.Release();
}
}
async Task <MPosControllerPrinter> OpenPrinterService(MposConnectionInformation connectionInfo)
{
if (connectionInfo == null)
{
return(null);
}
if (_printer != null)
{
return(_printer);
}
btnOpenService.IsEnabled = false;
_printer = MPosDeviceFactory.Current.createDevice(MPosDeviceType.MPOS_DEVICE_PRINTER) as MPosControllerPrinter;
switch (connectionInfo.IntefaceType)
{
case MPosInterfaceType.MPOS_INTERFACE_BLUETOOTH:
case MPosInterfaceType.MPOS_INTERFACE_WIFI:
case MPosInterfaceType.MPOS_INTERFACE_ETHERNET:
_printer.selectInterface((int)connectionInfo.IntefaceType, connectionInfo.Address);
_printer.selectCommandMode((int)MPosCommandMode.MPOS_COMMAND_MODE_BYPASS);
break;
default:
await DisplayAlert("Connection Fail", "Not Supported Interface", "OK");
return(null);
}
await _printSemaphore.WaitAsync();
try
{
var result = await _printer.openService();
if (result != (int)MPosResult.MPOS_SUCCESS)
{
_printer = null;
await DisplayAlert("Connection Fail", "openService failed. (" + result.ToString() + ")", "OK");
}
}
finally
{
_printSemaphore.Release();
}
return(_printer);
}
async void OnPrintImageClicked(object sender, EventArgs e)
{
// Prepares to communicate with the printer
_printer = await OpenPrinterService(_connectionInfo);
if (_printer == null)
{
return;
}
try
{
await _printSemaphore.WaitAsync();
// note : Page mode and transaction mode cannot be used together between IN and OUT.
// When "setTransaction" function called with "MPOS_PRINTER_TRANSACTION_IN", print data are stored in the buffer.
await _printer.setTransaction((int)MPosTransactionMode.MPOS_PRINTER_TRANSACTION_IN);
// Printer Setting Initialize
await _printer.directIO(new byte[] { 0x1b, 0x40 });
await _printer.printBitmap(await DependencyService.Get <IPlatformInfo>().GetImgResourceAsync(),
(int)MPosImageWidth.MPOS_IMAGE_WIDTH_ASIS, // Image Width
(int)MPosAlignment.MPOS_ALIGNMENT_CENTER, // Alignment
50, // brightness
true, // Image Dithering
true); // Image Compress
await _printer.printText("Bienvenido a Xamarin", new MPosFontAttribute()
{
Alignment = MPosAlignment.MPOS_ALIGNMENT_CENTER
});
// Feed to tear-off position (Manual Cutter Position)
await _printer.directIO(new byte[] { 0x1b, 0x4a, 0xaf });
}
catch (Exception ex)
{
await DisplayAlert("Exception", ex.ToString(), "OK");
}
finally
{
// Printer starts printing by calling "setTransaction" function with "MPOS_PRINTER_TRANSACTION_OUT"
await _printer.setTransaction((int)MPosTransactionMode.MPOS_PRINTER_TRANSACTION_OUT);
// If there's nothing to do with the printer, call "closeService" method to disconnect the communication between Host and Printer.
_printSemaphore.Release();
}
}
async void OnDeviceCloseClicked(object sender, EventArgs e)
{
await _printSemaphore.WaitAsync();
if (_printer != null)
{
// If there's nothing to do with the printer, call "closeService" method to disconnect the communication between Host and Printer.
await _printer.closeService();
_printer = null;
btnPrintText.IsEnabled = false;
btnCloseService.IsEnabled = false;
btnOpenService.IsEnabled = true;
}
_printSemaphore.Release();
}
async void OnDeviceOpenClicked(object sender, EventArgs e)
{
if (_printer == null)
{
// Prepares to communicate with the printer
_printer = await OpenPrinterService(_connectionInfo);
if (_printer != null)
{
btnPrintText.IsEnabled = true;
btnCloseService.IsEnabled = true;
btnOpenService.IsEnabled = false;
}
else
{
btnPrintText.IsEnabled = false;
btnCloseService.IsEnabled = false;
btnOpenService.IsEnabled = true;
}
}
}
async void OnPrintTextClicked(object sender, EventArgs e)
{
// Prepares to communicate with the printer
_printer = await OpenPrinterService(_connectionInfo);
if (_printer == null)
{
return;
}
try
{
await _printSemaphore.WaitAsync();
uint textCount = 0;
string printText = "_Hola Charlen Xamarin\n";
// note : Page mode and transaction mode cannot be used together between IN and OUT.
// When "setTransaction" function called with "MPOS_PRINTER_TRANSACTION_IN", print data are stored in the buffer.
await _printer.setTransaction((int)MPosTransactionMode.MPOS_PRINTER_TRANSACTION_IN);
// Printer Setting Initialize
await _printer.directIO(new byte[] { 0x1b, 0x40 });
// Code Pages for the contries in east Asia. Please note that the font data downloading is required to print characters for Korean, Japanese and Chinese.
//await _printer.printText((textCount++).ToString() + printText, new MPosFontAttribute() { CodePage = (int)MPosEastAsiaCodePage.MPOS_CODEPAGE_KSC5601 }); // Korean
//await _printer.printText((textCount++).ToString() + printText, new MPosFontAttribute() { CodePage = (int)MPosEastAsiaCodePage.MPOS_CODEPAGE_SHIFTJIS }); // Japanese
//await _printer.printText((textCount++).ToString() + printText, new MPosFontAttribute() { CodePage = (int)MPosEastAsiaCodePage.MPOS_CODEPAGE_GB2312 }); // Simplifies Chinese
//await _printer.printText((textCount++).ToString() + printText, new MPosFontAttribute() { CodePage = (int)MPosEastAsiaCodePage.MPOS_CODEPAGE_BIG5 }); // Traditional Chinese
//await _printer.printText((textCount++).ToString() + printText, new MPosFontAttribute() { CodePage = (int)MPosEastAsiaCodePage.MPOS_CODEPAGE_FARSI }); // Persian
//await _printer.printText((textCount++).ToString() + printText, new MPosFontAttribute() { CodePage = (int)MPosEastAsiaCodePage.MPOS_CODEPAGE_FARSI_II }); // Persian
await _printer.printText((textCount++).ToString() + printText, new MPosFontAttribute()
{
CodePage = (int)MPosCodePage.MPOS_CODEPAGE_WPC1252
});
await _printer.printText((textCount++).ToString() + printText, new MPosFontAttribute()
{
FontType = MPosFontType.MPOS_FONT_TYPE_B
});
await _printer.printText((textCount++).ToString() + printText, new MPosFontAttribute()
{
FontType = MPosFontType.MPOS_FONT_TYPE_C
});
await _printer.printText((textCount++).ToString() + printText, new MPosFontAttribute()
{
Alignment = MPosAlignment.MPOS_ALIGNMENT_CENTER
});
await _printer.printText((textCount++).ToString() + printText, new MPosFontAttribute()
{
Bold = true
});
await _printer.printText((textCount++).ToString() + printText, new MPosFontAttribute()
{
Reverse = true
});
await _printer.printText((textCount++).ToString() + printText, new MPosFontAttribute()
{
Underline = MPosFontUnderline.MPOS_FONT_UNDERLINE_2
});
await _printer.printText((textCount++).ToString() + printText, new MPosFontAttribute()
{
Height = MPosFontSizeHeight.MPOS_FONT_SIZE_HEIGHT_1
});
await _printer.printText((textCount++).ToString() + printText, new MPosFontAttribute()
{
Width = MPosFontSizeWidth.MPOS_FONT_SIZE_WIDTH_1
});
// Feed to tear-off position (Manual Cutter Position)
await _printer.directIO(new byte[] { 0x1b, 0x4a, 0xaf });
}
catch (Exception ex)
{
await DisplayAlert("Exception", ex.ToString(), "OK");
}
finally
{
// Printer starts printing by calling "setTransaction" function with "MPOS_PRINTER_TRANSACTION_OUT"
await _printer.setTransaction((int)MPosTransactionMode.MPOS_PRINTER_TRANSACTION_OUT);
// If there's nothing to do with the printer, call "closeService" method to disconnect the communication between Host and Printer.
_printSemaphore.Release();
}
}
private async void Imprimir()
{
conexion();
_printer = await OpenPrinterService(_connectionInfo);
if (_printer == null)
{
return;
}
try
{
await _printSemaphore.WaitAsync();
// note : Page mode and transaction mode cannot be used together between IN and OUT.
// When "setTransaction" function called with "MPOS_PRINTER_TRANSACTION_IN", print data are stored in the buffer.
await _printer.setTransaction((int)MPosTransactionMode.MPOS_PRINTER_TRANSACTION_IN);
// Printer Setting Initialize
await _printer.directIO(new byte[] { 0x1b, 0x40 });
await _printer.printText("LAMSAC\n\n", new MPosFontAttribute()
{
Alignment = MPosAlignment.MPOS_ALIGNMENT_CENTER, Bold = true, Width = MPosFontSizeWidth.MPOS_FONT_SIZE_WIDTH_1
});
await _printer.printText(LabeValorTitulo.Text + "\n", new MPosFontAttribute()
{
Alignment = MPosAlignment.MPOS_ALIGNMENT_CENTER, Bold = true
});
await _printer.printText("TARIFA :" + LabeValorPeaje.Text + "\n", new MPosFontAttribute()
{
Alignment = MPosAlignment.MPOS_ALIGNMENT_CENTER
});
await _printer.printText("FECHA: " + LabeValorFecha.Text + "\n", new MPosFontAttribute()
{
Alignment = MPosAlignment.MPOS_ALIGNMENT_CENTER
});
await _printer.printText("PLACA: " + LabeValorPlaca.Text + "\n\n", new MPosFontAttribute()
{
Alignment = MPosAlignment.MPOS_ALIGNMENT_CENTER
});
await _printer.printText("VINCI Highways\n", new MPosFontAttribute()
{
Alignment = MPosAlignment.MPOS_ALIGNMENT_CENTER, Reverse = true
});
// Feed to tear-off position (Manual Cutter Position)
await _printer.directIO(new byte[] { 0x1b, 0x4a, 0xaf });
}
catch (Exception ex)
{
await DisplayAlert("Exception", ex.ToString(), "OK");
}
finally
{
// Printer starts printing by calling "setTransaction" function with "MPOS_PRINTER_TRANSACTION_OUT"
await _printer.setTransaction((int)MPosTransactionMode.MPOS_PRINTER_TRANSACTION_OUT);
// If there's nothing to do with the printer, call "closeService" method to disconnect the communication between Host and Printer.
_printSemaphore.Release();
}
}
