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Tricks of the Windows Gam…ming Gurus (2nd Edition)
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Disc2.iso
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vc98
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crt
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src
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loaddll.c
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C/C++ Source or Header
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1998-06-17
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63 lines
/***
*loaddll.c - load or free a Dynamic Link Library
*
* Copyright (c) 1991-1997, Microsoft Corporation. All rights reserved.
*
*Purpose:
* defines _loaddll() and _unloaddll() - load and unload DLL
*
*******************************************************************************/
#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:
*
*******************************************************************************/
int __cdecl _loaddll(char * szName)
{
return ((int)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(int hMod)
{
if (!FreeLibrary((HANDLE)hMod)) {
return ((int)GetLastError());
}
return (0);
}