rpng-win.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <windows.h>
#include <conio.h>
#include "readpng.h"

Go to the source code of this file.

Macros
#define	PROGNAME   "rpng-win"
#define	LONGNAME   "Simple PNG Viewer for Windows"
#define	VERSION   "2.01 of 16 March 2008"
#define	alpha_composite(composite, fg, alpha, bg)

Functions
LRESULT CALLBACK	rpng_win_wndproc (HWND, UINT, WPARAM, LPARAM)
int WINAPI	WinMain (HINSTANCE hInst, HINSTANCE hPrevInst, PSTR cmd, int showmode)

Macro Definition Documentation

alpha_composite

#define alpha_composite	(		composite,
			fg,
			alpha,
			bg
	)

Value:

{               \
    ush temp = ((ush)(fg)*(ush)(alpha) +                          \
                (ush)(bg)*(ush)(255 - (ush)(alpha)) + (ush)128);  \
    (composite) = (uch)((temp + (temp >> 8)) >> 8);               \
}

Definition at line 100 of file rpng-win.c.

LONGNAME

#define LONGNAME   "Simple PNG Viewer for Windows"

Definition at line 80 of file rpng-win.c.

PROGNAME

#define PROGNAME   "rpng-win"

Definition at line 79 of file rpng-win.c.

VERSION

#define VERSION   "2.01 of 16 March 2008"

Definition at line 81 of file rpng-win.c.

Function Documentation

rpng_win_wndproc()

LRESULT CALLBACK rpng_win_wndproc	(	HWND	hwnd,
		UINT	iMsg,
		WPARAM	wP,
		LPARAM	lP
	)

Definition at line 644 of file rpng-win.c.

References image_height, and image_width.

WinMain()

int WINAPI WinMain	(	HINSTANCE	hInst,
		HINSTANCE	hPrevInst,
		PSTR	cmd,
		int	showmode
	)

Definition at line 140 of file rpng-win.c.

References error, FALSE, msg, and NULL.