钩子程序的VC++版

最新推荐文章于 2024-10-17 12:45:45 发布

原创最新推荐文章于 2024-10-17 12:45:45 发布 · 500 阅读

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CC 4.0 BY-SA版权

文章标签：

#vc++ #extension #dll #callback #hook #null

主程序

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* .CPP文件

#include <windows.h>
#include "resource.h"
#include "cpp1.h"

#define WM_MOUSEHOOK WM_USER+6

void InstallHook(HWND);
void UninstallHook();

HINSTANCE hInstance;
BOOL Hook=FALSE;
HHOOK myhook;

int CALLBACK WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow)
{
DialogBoxParam(hInstance,MAKEINTRESOURCE(IDD_DIALOG1),NULL,(DLGPROC)DialogProc,NULL);
ExitProcess(0);
}
BOOL CALLBACK DialogProc(HWND hwndDlg,UINT uMsg,WPARAM wParam,LPARAM lParam)
{
char mybuffer1[MAX_PATH];
char mybuffer2[MAX_PATH];
char mybuffer3[MAX_PATH];
LPRECT myrect;
int wmesgID,wmesgEVENT;
switch(uMsg)
{
case WM_INITDIALOG:
  myrect=new RECT;
  GetWindowRect(hwndDlg,myrect);
  SetWindowPos(hwndDlg,HWND_TOPMOST,myrect->left,myrect->top,myrect->right,myrect->bottom,SWP_SHOWWINDOW);
  return(TRUE);
case WM_MOUSEHOOK:
  wsprintf(mybuffer1,"%lx",wParam);
  SetDlgItemText(hwndDlg,IDC_EDIT1,mybuffer1);
        GetClassName((HWND)wParam,mybuffer2,MAX_PATH);
       SetDlgItemText(hwndDlg,IDC_EDIT2,mybuffer2);
  wsprintf(mybuffer3,"%lx",GetClassLong((HWND)wParam,GCL_WNDPROC));
  SetDlgItemText(hwndDlg,IDC_EDIT3,mybuffer3);
  return(TRUE);
case WM_COMMAND:
  wmesgID=LOWORD(wParam);
  wmesgEVENT=HIWORD(lParam);
  switch(wmesgID)
  {
    case IDOK:
      return (TRUE);
    case IDC_MYHOOK:
      if(Hook==FALSE)
      {
      InstallHook(hwndDlg);
         Hook=TRUE;
      SetDlgItemText(hwndDlg,IDC_MYHOOK,"unhook");
      }
      else
      {
       UninstallHook();
                   SetDlgItemText(hwndDlg,IDC_MYHOOK,"hook");
       Hook=FALSE;
                   SetDlgItemText(hwndDlg,IDC_EDIT1,"NULL");
       SetDlgItemText(hwndDlg,IDC_EDIT2,"NULL");
       SetDlgItemText(hwndDlg,IDC_EDIT3,"NULL");
      }
               return (TRUE);
    case IDCANCEL:
      if(Hook==TRUE) UninstallHook();
         EndDialog(hwndDlg, TRUE);
               return (TRUE); // TRUE 表示处理过信息
  }
          break;
}
return (FALSE);
}

*.H 文件

BOOL CALLBACK DialogProc(HWND hwndDlg,UINT uMsg,WPARAM wParam,LPARAM lParam);

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主DLL文件

_______________________________________________________________________________________________________________

*.CPP文件

DllMain(HINSTANCE hInst, DWORD dwReason, LPVOID lpReserved)
{
// Remove this if you use lpReserved
UNREFERENCED_PARAMETER(lpReserved);

if (dwReason == DLL_PROCESS_ATTACH)
{
  TRACE0("TEMPDLL1.DLL Initializing!/n");
        hInstance=hInst;
  // Extension DLL one-time initialization
  if (!AfxInitExtensionModule(Tempdll1DLL, hInstance))
   return 0;

  // Insert this DLL into the resource chain
  // NOTE: If this Extension DLL is being implicitly linked to by
  // an MFC Regular DLL (such as an ActiveX Control)
  // instead of an MFC application, then you will want to
  // remove this line from DllMain and put it in a separate
  // function exported from this Extension DLL. The Regular DLL
  // that uses this Extension DLL should then explicitly call that
  // function to initialize this Extension DLL. Otherwise,
  // the CDynLinkLibrary object will not be attached to the
  // Regular DLL's resource chain, and serious problems will
  // result.

  new CDynLinkLibrary(Tempdll1DLL);
}
else if (dwReason == DLL_PROCESS_DETACH)
{
  TRACE0("TEMPDLL1.DLL Terminating!/n");
  // Terminate the library before destructors are called
  AfxTermExtensionModule(Tempdll1DLL);
}
return 1;   // ok
}
LRESULT CALLBACK MouseProc(int nCode,WPARAM wParam,LPARAM lParam)
{
nexthook=CallNextHookEx(myhook,nCode,wParam,lParam);
mymouse=(MOUSEHOOKSTRUCT*)lParam;
hWND=WindowFromPoint(mymouse->pt);
PostMessage(hWnd,WM_MOUSEHOOK,(DWORD)hWND,0);
return nexthook;
}