text: /*------------------------------------------*/
  /*  PNGFILE.H -- Header File for pngfile.c*/
  /*------------------------------------------*/
  
  /* Copyright 2000, Willem van Schaik.*/
  
  /* This code is released under the libpng license.*/
  /* For conditions of distribution and use, see the disclaimer*/
  /* and license in png.h*/
  
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  #include <windows.h>
  
  void PngFileInitialize (HWND hwnd) ;
  BOOL PngFileOpenDlg (HWND hwnd, PTSTR pstrFileName, PTSTR pstrTitleName) ;
  BOOL PngFileSaveDlg (HWND hwnd, PTSTR pstrFileName, PTSTR pstrTitleName) ;
  
  BOOL PngLoadImage (PTSTR pstrFileName, png_byte **ppbImageData, 
                     int *piWidth, int *piHeight, int *piChannels, png_color *pBkgColor);
  BOOL PngSaveImage (PTSTR pstrFileName, png_byte *pDiData,
                     int iWidth, int iHeight, png_color BkgColor);
  
  #ifndef PNG_STDIO_SUPPORTED
  static void png_read_data(png_structp png_ptr, png_bytep data, png_size_t length);
  static void png_write_data(png_structp png_ptr, png_bytep data, png_size_t length);
  static void png_flush(png_structp png_ptr);
  #endif
  
  