_SDL_main

[Labdabeta]

I am making a screensaver and it won't build! The error I get is "undefined reference to '_SDL_main'. Here is my code:

#include <windows.h>
#include <scrnsave.h>
BOOL WINAPI ScreenSaverConfigureDialog(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam)
{
    system("TMXDB.exe");
    return true;
}
BOOL WINAPI RegisterDialogClasses(HANDLE hmodule)
{
    return true;
}
int TMR;
LONG WINAPI ScreenSaverProc(HWND hwnd,UINT message,WPARAM wparam,LPARAM lparam)
{
	switch(message)
	{
	case WM_CREATE:
        system("TMXSCR.exe");
        return 0;
	case WM_ERASEBKGND:
		return 0;
	case WM_TIMER:
		return 0;
	case WM_DESTROY:
		KillTimer(hwnd,TMR);
		PostQuitMessage(0);
		return 0;
	}
	return 0;
}

What do I do to fix this (I don't usually program with windows API (thats why all I do is call my screensaver executable rather than actually doing something with windows API, so it could be something simple)

[Zjarek]

I would check if you are trying to link with SDL library in this project.

[Labdabeta]

Yes I do link the SDL library with this project since there are other files in the project that have to use it. Is there any way to unlink it for one file?

[Zjarek]

I don't know, I'm a *nix guy, but I think this can be a separate project. It does not depend in any way on TMXSC.

[Labdabeta]

I just did some research and it seems that scrnsave.h is supposed to define main, but here is the source code of my scrnsave.h (notice no main):

/*
  Screen saver library by Anders Norlander <[e-mail]>

  This library is (hopefully) compatible with Microsoft's
  screen saver library.

  This is public domain software.

 */
#ifndef _SCRNSAVE_H
#define _SCRNSAVE_H
#if __GNUC__ >=3
#pragma GCC system_header
#endif

#ifdef __cplusplus
extern "C" {
#endif

/* configure dialog identifier */
#define DLG_SCRNSAVECONFIGURE 2003

#define idsIsPassword		1000
#define idsIniFile		1001
#define idsScreenSaver		1002
#define idsPassword		1003
#define idsDifferentPW		1004
#define idsChangePW		1005
#define idsBadOldPW		1006
#define idsAppName		1007
#define idsNoHelpMemory		1008
#define idsHelpFile		1009
#define idsDefKeyword		1010

#define IDS_DESCRIPTION 1
#define ID_APP 100

#define WS_GT (WS_GROUP | WS_TABSTOP)
#define SCRM_VERIFYPW		WM_APP
#define MAXFILELEN		13
#define TITLEBARNAMELEN		40
#define APPNAMEBUFFERLEN	40
#define BUFFLEN			255

#ifndef RC_INVOKED

/* functions provided by the aothor of the screen saver */
BOOL WINAPI ScreenSaverConfigureDialog(HWND,UINT,WPARAM,LPARAM);
BOOL WINAPI RegisterDialogClasses(HANDLE);
LONG WINAPI ScreenSaverProc(HWND,UINT,WPARAM,LPARAM);

/* Change name of function if we are using UNICODE */
#ifdef UNICODE
#define DefScreenSaverProc DefScreenSaverProcW
#endif

/* default screen saver proc; call instead of DefWindowProc */
LONG WINAPI DefScreenSaverProc(HWND,UINT,WPARAM,LPARAM);

/* change password */
void WINAPI ScreenSaverChangePassword(HWND);

/* globals that may be used by screen saver */
extern HINSTANCE	hMainInstance;
extern HWND		hMainWindow;
extern BOOL		fChildPreview;
extern TCHAR		szName[];
extern TCHAR		szAppName[];
extern TCHAR		szIniFile[];
extern TCHAR		szScreenSaver[];
extern TCHAR		szHelpFile[];
extern TCHAR		szNoHelpMemory[];
extern UINT		MyHelpMessage;

#endif /* RC_INVOKED */

#ifdef __cplusplus
}
#endif

#endif /* _SCRNSAVE_H */