source: trunk/src/ddraw/initddraw.cpp@ 9776

/* $Id: initddraw.cpp,v 1.2 2003-02-07 13:58:17 sandervl Exp $
 *
 * DLL entry point
 *
 * Copyright 1998 Sander van Leeuwen
 * Copyright 1998 Peter Fitzsimmons
 *
 *
 * Project Odin Software License can be found in LICENSE.TXT
 *
 */

/*-------------------------------------------------------------*/
/* INITERM.C -- Source for a custom dynamic link library       */
/*              initialization and termination (_DLL_InitTerm) */
/*              function.                                      */
/*                                                             */
/* When called to perform initialization, this sample function */
/* gets storage for an array of integers, and initializes its  */
/* elements with random integers.  At termination time, it     */
/* frees the array.  Substitute your own special processing.   */
/*-------------------------------------------------------------*/


/* Include files */
#define  INCL_DOSMODULEMGR
#define  INCL_DOSPROCESS
#include <os2wrap.h>    //Odin32 OS/2 api wrappers
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <odin.h>
#include <win32type.h>
#include <winconst.h>
#include <odinlx.h>
#include <dbglog.h>
#include "divewrap.h"

extern "C" {
 //Win32 resource table (produced by wrc)
 extern DWORD ddraw_PEResTab;
}

char ddrawPath[CCHMAXPATH] = "";
static HMODULE dllHandle = 0;

static void APIENTRY cleanup(ULONG ulReason);

/****************************************************************************/
/* _DLL_InitTerm is the function that gets called by the operating system   */
/* loader when it loads and frees this DLL for each process that accesses   */
/* this DLL.  However, it only gets called the first time the DLL is loaded */
/* and the last time it is freed for a particular process.  The system      */
/* linkage convention MUST be used because the operating system loader is   */
/* calling this function.                                                   */
/****************************************************************************/
ULONG APIENTRY inittermDDraw(ULONG hModule, ULONG ulFlag)
{
   /*-------------------------------------------------------------------------*/
   /* If ulFlag is zero then the DLL is being loaded so initialization should */
   /* be performed.  If ulFlag is 1 then the DLL is being freed so            */
   /* termination should be performed.                                        */
   /*-------------------------------------------------------------------------*/

   switch (ulFlag) {
      case 0 :
      {
         APIRET rc;

         DosQueryModuleName(hModule, CCHMAXPATH, ddrawPath);
         char *endofpath = strrchr(ddrawPath, '\\');
         if (endofpath)
            *(endofpath+1) = '\0';

         CheckVersionFromHMOD(PE2LX_VERSION, hModule); /*PLF Wed  98-03-18 05:28:48*/

         dllHandle = RegisterLxDll(hModule, NULL, (PVOID)&ddraw_PEResTab,
                                   DDRAW_MAJORIMAGE_VERSION, DDRAW_MINORIMAGE_VERSION,
                                   IMAGE_SUBSYSTEM_WINDOWS_GUI);
         if (dllHandle == 0)
            return 0UL;

         DiveLoad();
         break;
      }
      case 1 :
         DiveUnload();
         if(dllHandle) {
            UnregisterLxDll(dllHandle);
         }
         break;
      default  :
         return 0UL;
   }

   /***********************************************************/
   /* A non-zero value must be returned to indicate success.  */
   /***********************************************************/
   return 1UL;
}
//******************************************************************************
//******************************************************************************