windows-nt/Source/XPSP1/NT/base/crts/crtw32/exec/loaddll.c
2020-09-26 16:20:57 +08:00

68 lines
1.5 KiB
C

/***
*loaddll.c - load or free a Dynamic Link Library
*
* Copyright (c) 1991-2001, Microsoft Corporation. All rights reserved.
*
*Purpose:
* defines _loaddll() and _unloaddll() - load and unload DLL
*
*Revision History:
* 08-21-91 BWM Wrote module.
* 09-30-93 GJF Resurrected for compatibility with NT SDK.
* 02-06-98 GJF Changes for Win64: changed return type to intptr_t.
*
*******************************************************************************/
#include <cruntime.h>
#include <oscalls.h>
#include <stdlib.h>
#include <process.h>
/***
*int _loaddll(filename) - Load a dll
*
*Purpose:
* Load a DLL into memory
*
*Entry:
* char *filename - file to load
*
*Exit:
* returns a unique DLL (module) handle if succeeds
* returns 0 if fails
*
*Exceptions:
*
*******************************************************************************/
intptr_t __cdecl _loaddll(char * szName)
{
return ((intptr_t)LoadLibrary(szName));
}
/***
*int _unloaddll(handle) - Unload a dll
*
*Purpose:
* Unloads a DLL. The resources of the DLL will be freed if no other
* processes are using it.
*
*Entry:
* int handle - handle from _loaddll
*
*Exit:
* returns 0 if succeeds
* returns DOS error if fails
*
*Exceptions:
*
*******************************************************************************/
int __cdecl _unloaddll(intptr_t hMod)
{
if (!FreeLibrary((HANDLE)hMod)) {
return ((int)GetLastError());
}
return (0);
}