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// A simple program that uses LoadLibrary and
// GetProcAddress to access myPuts from Myputs.dll.
#include <stdio.h>
#include <windows.h>
typedef int (*MYPROC)(LPTSTR);
VOID main(VOID)
{
HINSTANCE hinstLib;
MYPROC ProcAdd;
BOOL fFreeResult, fRunTimeLinkSuccess = FALSE;
// Get a handle to the DLL module.
hinstLib = LoadLibrary(TEXT("myputs"));
// If the handle is valid, try to get the function address.
if (hinstLib != NULL)
{
ProcAdd = (MYPROC) GetProcAddress(hinstLib, TEXT("myPuts"));
// If the function address is valid, call the function.
if (NULL != ProcAdd)
{
fRunTimeLinkSuccess = TRUE;
(ProcAdd) (TEXT("Message via DLL function\n"));
}
// Free the DLL module.
fFreeResult = FreeLibrary(hinstLib);
}
// If unable to call the DLL function, use an alternative.
if (! fRunTimeLinkSuccess)
printf("Message via alternative method\n");
}