【HOOK】有没有 截取 WM_CLOSE 消息 VC的例子，谢谢谢谢

Question

应该是使用WH_CALLWNDPROC类型钩子截取消息。但是我好像很难做成全局钩子。

Answer 1

http://www.pcmag.com/article2/0,4149,10206,00.asp
到裡面下載一個VNC的源程序.裡面有個VNCHook程序..那個就是.應該有別的更好的地址.我只是方便給你貼一下.

Answer 2

你要自己生一个共享段
#pragma data_seg("PublicData") //定义全局数据段
HHOOK hhook=NULL; //钩子句柄
HINSTANCE pInstance=NULL; //钩子模块句柄，必须要初始化
#pragma data_seg()

Answer 3

#include "StdAfx.h"#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif#pragma data_seg("data")
HHOOK      g_hCallWndHook=NULL;
HINSTANCE    g_hInst=NULL;
#pragma data_seg()
#pragma comment(linker, "/section:data,rws")extern "C" __declspec(dllexport) BOOL StartHook();
extern "C" __declspec(dllexport) BOOL Endhook();
LRESULT WINAPI CallWndProc(int nCode, WPARAM wParam, LPARAM lParam);extern "C" int APIENTRY
DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID lpReserved)
{
UNREFERENCED_PARAMETER(lpReserved);     g_hInst = hInstance; if (dwReason == DLL_PROCESS_ATTACH)
{
if (!AfxInitExtensionModule(CaptureDLL, hInstance))
return 0;
new CDynLinkLibrary(CaptureDLL);
}
else if (dwReason == DLL_PROCESS_DETACH)
{
AfxTermExtensionModule(CaptureDLL);
}
return 1;
}BOOL StartHook()
{                                       
if (g_hCallWndHook)
{
return FALSE;
}
else
{
g_hCallWndHook = SetWindowsHookEx(WH_CALLWNDPROC,CallWndProc,g_hInst,0);
return TRUE;
}      
}BOOL  Endhook()
{                        
 if (g_hCallWndHook)    
 {
        UnhookWindowsHookEx(g_hCallWndHook);
        g_hCallWndHook=NULL;
return TRUE;
         }         
 else
 {
          return FALSE;
 }
}LRESULT WINAPI CallWndProc(int nCode, WPARAM wParam, LPARAM lParam)
{
if (nCode < 0 || nCode == HC_NOREMOVE)
   return CallNextHookEx(g_hCallWndHook,nCode,wParam,lParam); if( ((LPCWPSTRUCT)lParam)->message == WM_CLOSE)
{
MessageBeep(0);
} return CallNextHookEx(g_hCallWndHook,nCode,wParam,lParam);
}