DLL建立读写共享节区(Segment)

// Hook.cpp : Defines the entry point for the DLL application.

//



#include "stdafx.h"

#include "Hook.h"



HHOOK g_hHook;

HHOOK g_hHookKey;

HINSTANCE g_hIns;



#pragma data_seg("MySeg")

HWND g_hWnd =NULL;

#pragma data_seg()



//#pragma comment(linker,"/section:MySeg,RWS")



BOOL APIENTRY DllMain( HANDLE hModule, 

                       DWORD  ul_reason_for_call, 

                       LPVOID lpReserved

					 )

{

	g_hIns =(HINSTANCE) hModule;

//     switch (ul_reason_for_call)

// 	{

// 		case DLL_PROCESS_ATTACH:

// 		case DLL_THREAD_ATTACH:

// 		case DLL_THREAD_DETACH:

// 		case DLL_PROCESS_DETACH:

// 			break;

//     }

    return TRUE;

}



LRESULT CALLBACK MouseProc(

						   int nCode,      // hook code

						   WPARAM wParam,  // message identifier

						   LPARAM lParam   // mouse coordinates

						   )

{

	return 1;

}





LRESULT CALLBACK KeyProc(

						   int nCode,      // hook code

						   WPARAM wParam,  // message identifier

						   LPARAM lParam   // mouse coordinates

						   )

{

	if(wParam == VK_F2){

		UnhookWindowsHookEx(g_hHook);

		UnhookWindowsHookEx(g_hHookKey);

		//MessageBox(0,"去掉了Hook","提示",0);

		::SendMessage(g_hWnd,WM_CLOSE,0,0);

		return 1;

	}

	else return CallNextHookEx(g_hHookKey,nCode,wParam,lParam);	

}



HOOK_API void SetHook(HWND hWnd)

{

	g_hWnd = hWnd;

// 	g_hHook = SetWindowsHookEx(WH_MOUSE,MouseProc,g_hIns,0);

// 	g_hHookKey = SetWindowsHookEx(WH_KEYBOARD,KeyProc,g_hIns,0);

	g_hHook = SetWindowsHookEx(WH_MOUSE,MouseProc,GetModuleHandle("Hook.dll"),0);

	g_hHookKey = SetWindowsHookEx(WH_KEYBOARD,KeyProc,GetModuleHandle("Hook"),0);

 

}

　　Hook.def

LIBRARY Hook

EXPORTS

SetHook @23



SEGMENTS

MySeg	READ WRITE SHARED

　　

Client:

/////////////////////////////////////////////////////////////////////////////

// CHookTestDlg message handlers



BOOL CHookTestDlg::OnInitDialog()

{

	CDialog::OnInitDialog();



	// Add "About..." menu item to system menu.



	// IDM_ABOUTBOX must be in the system command range.

	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);

	ASSERT(IDM_ABOUTBOX < 0xF000);



	CMenu* pSysMenu = GetSystemMenu(FALSE);

	if (pSysMenu != NULL)

	{

		CString strAboutMenu;

		strAboutMenu.LoadString(IDS_ABOUTBOX);

		if (!strAboutMenu.IsEmpty())

		{

			pSysMenu->AppendMenu(MF_SEPARATOR);

			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);

		}

	}



	// Set the icon for this dialog.  The framework does this automatically

	//  when the application's main window is not a dialog

	SetIcon(m_hIcon, TRUE);			// Set big icon

	SetIcon(m_hIcon, FALSE);		// Set small icon

	

	// TODO: Add extra initialization here

	int cx,cy;

	cx=GetSystemMetrics(SM_CXSCREEN);

	cy=GetSystemMetrics(SM_CYSCREEN);

	SetWindowPos(&wndTopMost,0,0,cx,cy,SWP_SHOWWINDOW);



	SetHook(this->m_hWnd);  



	return TRUE;  // return TRUE  unless you set the focus to a control

}