PRNEMFRGSPROC

#include "Ltprinter.h"

L_INT pEXT_CALLBACK YourFunction(pszPrinterName, hMem, uSize, pData)

L_TCHAR * pszPrinterName;	printer name
HGLOBAL hMem;	handle to a memory block
L_UINT uSize;	size of memory block
L_VOID * pData;	pointer to additional parameters

Callback function fired for every page printed using the LEADTOOLS Virtual Printer Driver.

Parameter	Description
pszPrinterName	Character string that contains the name of the LEADTOOLS Virtual Printer Driver.
hMem	Handle to the block of memory that contains an EMF data file.
uSize	The size of the data file in memory pointed to by the hMem parameter.
pData	A void pointer that you can use to access a variable or structure that contains data that your callback function needs. This gives you a way to receive data indirectly from the function that uses this callback function. This is the same pointer passed to the L_PrnRegisterEMFCallback function in the pData parameter.
	Keep in mind that this is a void pointer, which must be cast to the appropriate data type within your callback function.

Returns

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

Comments

The contents of each printed page will be received in the EMF data file pointed to by the hMem parameter. When the hMem is no longer needed, it should be freed by calling the GlobalFree function.

Required DLLs and Libraries

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

Example

For an Example, refer to L_PrnRegisterEMFCallback.

Help Version 19.0.2017.10.27

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LEADTOOLS Raster Imaging C API Help

Introduction

Version History

Getting Started

LEADTOOLS Raster Imaging Features

Redistributables/Files To Be Included With Your Application

Functions:	L_PrnInstallPrinter, L_PrnRegisterEMFCallback, L_PrnUnRegisterEMFCallback
Topics:	LEADTOOLS Printer: Register and Un-register Callback Functions
	Register and Un-register Callback Functions