libpng/contrib/visupng/PngFile.h

//------------------------------------------
//  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