L_BarCodeWrite

#include "ltbar.h"

L_LTBAR_API L_INT L_BarCodeWrite(pBitmap, pBarCodeData, pBarCodeColor, ulFlags, pBarCode1D, pBarCodePDF, pBarCodeDM, pBarCodeQR, pBarCodeAZTEC, pBarCodeMAXI, pBarCodeMICROQR, lprcSize)

Writes linear, PDF417, MicroPDF417, Data Matrix, QR, Aztec, Maxi and MicroQR barcodes over the bitmap.

Returns

Comments

The L_BarCodeWrite function writes linear, PDF417, MicroPDF417, Data Matrix, QR, Aztec, Maxi and MicroQR barcodes.

QR stores up to 2335 ASCII characters in one barcode symbol.

DataMatrix stores up to 2218 ASCII characters in one barcode symbol.

PDF417 stores up to 1,850 ASCII characters in one barcode symbol.

MicroPDF stores up to 366 ASCII characters in one barcode symbol.

This function supports all bitmaps currently supported by LEADTOOLS.

You must pass an allocated bitmap to this function.  If you do not pass an allocated bitmap, the function wil return an error code.

The L_BarCodeWrite function will write the barcode symbol over the bitmap using the rectangle defined by the rcBarLocation member in the BARCODEDATA structure. However, if the bitmap has a region, this function will write the barcode using the region boundaries.

If the region is non-rectangular, the barcode will be written to the rectangle bounding the region and subsequently clipped to the given region. This might cause the resulting barcode to be unreadable.

If you set the ulFlags parameter to BARCODE_USECOLORS, then this function will use the pBarCodeColor parameter. Otherwise, the function will ignore it and use the default colors of black for bars and white for spaces.

Using colors does not apply for 1-bit-per-pixel images.

The BARCODE_USECOLORS and BARCODE_TRANSPARENT are used with all barcode types.

For a table containing information useful when writing 1D barcode data, refer to

https://www.leadtools.com/sdk/barcode/1d-chart.

For a table containing information useful when writing PDF barcode data, refer to

https://www.leadtools.com/sdk/barcode/pdf417-chart.

For a table containing information useful when writing QR barcode data, refer to

https://www.leadtools.com/sdk/barcode/qr-chart.

Required DLLs and Libraries

Platforms

Win32, x64, Linux.

L_INT BarCodeWriteExample(HWND hWnd, pBITMAPHANDLE pBitmap) 
{ 
   L_TCHAR      szBuffer[256]; 
   BARCODEDATA BarCodeData; 
   BARCODECOLOR BarColor; 
   BARCODE1D   Bar1D; 
   L_INT       nRet; 
   ZeroMemory(&szBuffer, sizeof(szBuffer)); 
   ZeroMemory(&BarCodeData, sizeof(BARCODEDATA)); 
   ZeroMemory(&Bar1D, sizeof(BARCODE1D)); 
   BarColor.uStructSize = sizeof(BARCODECOLOR); 
   BarColor.dwColorBar = RGB(0, 0, 255); 
   BarColor.dwColorSpace = RGB(255, 0, 0); 
   BarCodeData.uStructSize = sizeof(BarCodeData); 
   BarCodeData.rcBarLocation.left = 50; 
   BarCodeData.rcBarLocation.top = 50; 
   BarCodeData.rcBarLocation.right = 250; 
   BarCodeData.rcBarLocation.bottom = 100; 
   BarCodeData.nUnits = BARCODE_SCANLINES_PER_PIXELS; 
   BarCodeData.ulType = BARCODE_1D_EAN_13; 
   BarCodeData.pszBarCodeData = "123456789012"; 
   BarCodeData.nSizeofBarCodeData = (L_INT) strlen(BarCodeData.pszBarCodeData); 
   Bar1D.uStructSize = sizeof(BARCODE1D); 
   Bar1D.bErrorCheck = TRUE; 
   Bar1D.bOutShowText= TRUE; 
   nRet = L_BarCodeWrite(pBitmap, &BarCodeData, &BarColor, BARCODE_USECOLORS, &Bar1D, NULL, NULL, NULL, NULL, NULL, NULL, NULL); 
   if (nRet == SUCCESS) 
   { 
      wsprintf(szBuffer, TEXT("A Barcode is written ...")); 
      MessageBox(hWnd, szBuffer, TEXT("Notice!"), MB_OK); 
   } 
   else 
   { 
      wsprintf(szBuffer, TEXT("An error occurred in L_BarCodeWrite,\nError No. = %d\n"), nRet); 
      MessageBox(hWnd, szBuffer, TEXT("Error!"), MB_OK); 
      return nRet; 
   } 
   return SUCCESS; 
}