钩子无效求助

Question

#pragma data_seg(".SHARDAT")
static HHOOK hkb=NULL;
#pragma data_seg()HINSTANCE hins;bool installhook()
{
    hkb=SetWindowsHookEx(WH_KEYBOARD,(HOOKPROC)KeyboardProc,hins,0);
    return TRUE;
}LRESULT CALLBACK KeyboardProc(int nCode, WPARAM wParam, LPARAM lParam)
{
    logwrite("test");
    
    LRESULT RetVal = CallNextHookEx( hkb, nCode, wParam, lParam ); 
    return RetVal;
}void HookEnd()
{
UnhookWindowsHookEx(hkb);
}通过LoadLibrary和GetProcAddress,installhook已得到执行了,可是SetWindowsHookEx没有效果,请高手帮助!!!

Answer 1

我现在是最简单的勾子程序了,只要有键盘按下就写个LOG. 是WINXP环境下,有关系吗?

Answer 2

hins的值在哪里?有没有在InitInstance中得到?
键盘钩子的例子:
http://www.vckbase.com/document/viewdoc/?id=271

Answer 3

建议你检查SetWindowsHookEx的返回值，如果SetWindowsHookEx执行成功，那问题肯定是logwrite执行不成功。注意DLL中用到的所有全局变量，一定要放到#pragma data_seg(".SHARDAT")...#pragma data_seg()，而且还需要加上#pragma comment(linker, "/section:.SHARDAT,rws")

Answer 4

hins= AfxGetInstanceHandle(); 有调用吗

Answer 5

的确,问题是出在hins的值设置上,谢谢诸位.