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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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getproc.c
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C/C++ Source or Header
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1998-06-17
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/***
*getproc.c - Get the address of a procedure in a DLL.
*
* Copyright (c) 1991-1997, Microsoft Corporation. All rights reserved.
*
*Purpose:
* defines _getdllprocadd() - gets a procedure address by name or
* ordinal
*
*******************************************************************************/
#include <cruntime.h>
#include <oscalls.h>
#include <process.h>
/***
*int (*)() _getdllprocaddr(handle, name, ordinal) - Get the address of a
* DLL procedure specified by name or ordinal
*
*Purpose:
*
*Entry:
* int handle - a DLL handle from _loaddll
* char * name - Name of the procedure, or NULL to get by ordinal
* int ordinal - Ordinal of the procedure, or -1 to get by name
*
*
*Exit:
* returns a pointer to the procedure if found
* returns NULL if not found
*
*Exceptions:
*
*******************************************************************************/
int (__cdecl * __cdecl _getdllprocaddr(int hMod,
char * szProcName,
int iOrdinal))()
{
typedef int (__cdecl * PFN)();
if (szProcName == NULL) {
if (iOrdinal <= 65535) {
return ((PFN)GetProcAddress((HANDLE)hMod, (LPSTR)iOrdinal));
}
}
else {
if (iOrdinal == -1) {
return ((PFN)GetProcAddress((HANDLE)hMod, szProcName));
}
}
return (NULL);
}