怎么象DLL中函数传递参数。新手问题

Question

DLL中 我想把installhook() 加入个传递参数窗口句柄 installhook(HWND HW)应该怎么修改。还有在EXE中调用改怎么改
BOOL __declspec(dllexport)__stdcall installhook()
{
f1=fopen("c:\\report.txt","w");
fclose(f1);
hkb=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);return TRUE;
调用
static HINSTANCE hinstDLL; 
typedef BOOL (CALLBACK *inshook)(); 
inshook instkbhook;
hinstDLL = LoadLibrary((LPCTSTR) "hodll.dll"); 
instkbhook = (inshook)GetProcAddress(hinstDLL, "installhook"); 
instkbhook();

Answer 1

installhook(HWND hw)
{
...
}加了HWND参数后，调用的时候就应该放在窗口类中了
instbkhook(GetSafeHwnd());