hi everyone:
i have some problems when i call a DLL in A7:
first, there is another DLL written by VS2003,just simple example,code like this:
testDLL.cpp:
#include <windows.h>
#include <stdio.h>
#include <iostream>
#include <tchar.h>
#include "testDLL.h"
int WINAPI testMax(int a, int b)
{
return a;
}
testDLL.def:
LIBRARY qq
EXPORT
testMax @ 1
then,i wrote a main DLL which is for the Engine to call.code like this:
MyDLL.cpp:
#define DLL_USE
#include "stdafx.h"
#include <iostream>
#include <iomanip>
#include <tchar.h>
#include "adll.h"
BOOL APIENTRY DllMain( HANDLE hModule,
DWORD ul_reason_for_call,
LPVOID lpReserved
)
{
engine_bind();
return TRUE;
}
DLLFUNC var testDll()
{
typedef int( * test)(int, int);
HINSTANCE hDLL;
test testMax;
int result;
hDLL = LoadLibrary("qq.dll");
if(hDLL != NULL)
{
testMax = (test)GetProcAddress(hDLL, "testMax");
if(testMax != NULL)
{
result = testMax(1, 0);
FreeLibrary(hDLL);
return _VAR(result);
}
else
return _VAR(3);
}
else
{
return _VAR(4);
}
}
both DLL was complied with no errors,and i got 2 DLL files:
qq.dll,MyDll.dll,i just put them in the same path.
when i call the function in Lite-C:
var deadpoint = 0;
deadpoint = testDll();
the deadpoint`s value is always 3,that means the GetProcAddress function has a NULL return value?
that is the problem i want to solve...hope someone could help,thanks!!
