L_PrintBitmapGDIPlus

#include "l_bitmap.h"

L_LTDIS_API L_INT L_PrintBitmapGDIPlus(hDC, pBitmap, nX, nY, nWidth, nHeight, uFlags)

L_HDC hDC;	/* handle to the target device context (DC) */
pBITMAPHANDLE pBitmap;	/* pointer to the bitmap handle */
L_INT nX;	/* x position to start the print */
L_INT nY;	/* y position to start the print */
L_INT nWidth;	/* printed width */
L_INT nHeight;	/* printed height */
L_UINT32 uFlags;	/* flags, reserved */

Prints the bitmap to the specified device context using GDI+.

Parameter	Description
hDC	Handle to the device context (DC) where the bitmap is to print. The mapping mode of the device context must be MM_TEXT.
pBitmap	Pointer to the bitmap handle referencing the bitmap to print.
nX	Value that represents the X position to start the print.
nY	Value that represents the Y position to start the print.
nWidth	Value that represents the printed width, in pixels. The actual width depends on the dots per inch (DPI) of the printer.
nHeight	Value that represents the printed height, in pixels. The actual height depends on the dots per inch (DPI) of the printer.
uFlags	Reserved for future use. Pass 0.

Returns

SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Comments

If GDI+ library is not installed to the system, an error code is returned.

Required DLLs and Libraries

LTDIS

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64.

See Also

Functions:	L_PrintBitmap, L_PrintBitmapFast
Topics:	Printing an Image
	Printing a Single-Page Image with LEADTOOLS
	Raster Image Functions: Printing Images

Example

//This example determines the output size to fit the image on //half of a page, and prints the bitmap twice on the same page

#define MAKE_IMAGE_PATH(pFileName) TEXT("C:\\Users\\Public\\Documents\\LEADTOOLS Images\\")pFileName


L_INT PrintBitmapGDIPlusExample(L_VOID)
{
   BITMAPHANDLE LeadBitmap; /* Bitmap handle for the image */
   HDC PrinterDC; /* DC for the printer */
   L_INT WidthAllowed, HeightAllowed, WidthFactor, HeightFactor; /* For size calculations */
   L_INT PrintWidth, PrintHeight; /* Width and height of the printed image */
   L_INT nRet;
   
   /* Load a bitmap at its own bits per pixel */
   nRet =L_LoadBitmap (MAKE_IMAGE_PATH(TEXT("Image1.cmp")), &LeadBitmap, sizeof(BITMAPHANDLE), 0, ORDER_BGR, NULL, NULL);
   if(nRet !=SUCCESS)
      return nRet;
   /* Get the printer DC */
   PrinterDC = L_PrintBitmapFast(NULL, NULL, 0, 0, 0, 0, FALSE);
   /* Initialize variables for fitting the image on half a page */
   WidthAllowed = GetDeviceCaps(PrinterDC,HORZRES);
   HeightAllowed = GetDeviceCaps(PrinterDC,VERTRES) * 4/10;
   HeightFactor = BITMAPHEIGHT(&LeadBitmap);
   WidthFactor = BITMAPWIDTH(&LeadBitmap);

   /* See if using the maximum width will make the image too tall */
   if((L_INT) (((L_INT32) WidthAllowed * HeightFactor) / WidthFactor) < HeightAllowed)
   { /* Use the maximum width, and calculate the height value */
      PrintWidth = WidthAllowed;
      PrintHeight = (L_INT) (((L_INT32) PrintWidth * HeightFactor) / WidthFactor);
   }
   else
   { /* Use the maximum height, and calculate the width value */
      PrintHeight = HeightAllowed;
      PrintWidth = (L_INT) (((L_INT32) PrintHeight * WidthFactor) / HeightFactor);
   }

   /* Print the first image */
   nRet =L_PrintBitmapGDIPlus(PrinterDC, &LeadBitmap, 1, 1, PrintWidth, PrintHeight, 0);
   if(nRet !=SUCCESS)
      return nRet;

   /* Print the second image */
   nRet =L_PrintBitmapGDIPlus(PrinterDC, &LeadBitmap, 1, HeightAllowed * 6/5, PrintWidth, PrintHeight, 0);
   if(nRet !=SUCCESS)
      return nRet;

   EndPage(PrinterDC);
   EndDoc( PrinterDC);
   L_FreeBitmap( &LeadBitmap );

   DeleteDC(PrinterDC);

   return SUCCESS;
}