学步园

今天做了一个下午的HOOK,要做一个有记忆键盘功能的全局钩子,没想到搞半天做了一个乱七八糟的东西出来，哎．．有点遗憾．

LRESULT CALLBACK KeyboardProc(<br /> int code, // hook code<br /> WPARAM wParam, // virtual-key code<br /> LPARAM lParam // keystroke-message information<br /> )<br /> {<br /> char ch[2];<br /> char *pBuf;<br /> DWORD fileLength;</p> <p> CFile file("1.txt",CFile::modeRead);<br /> fileLength = file.GetLength();<br /> pBuf = new char[fileLength+2];<br /> pBuf[fileLength] = 0;<br /> file.Read(pBuf,fileLength);<br /> file.Close();</p> <p> switch (wParam)<br /> {</p> <p> case 'A':<br /> {<br /> // strcpy(ch,"a");<br /> strcat(pBuf,"a");<br /> // strcpy(pBuf,"a");<br /> CFile file("1.txt",CFile::modeWrite);<br /> file.Write(pBuf,fileLength+2);<br /> // file.Write(ch,1);<br /> file.Close();<br /> break;<br /> }<br /> case 'B':<br /> {<br /> ch[0] = 'b';<br /> ch[1] = 0;<br /> strcat(pBuf,ch);<br /> CFile file("1.txt",CFile::modeWrite);<br /> file.Write(pBuf,fileLength+2);<br /> file.Close();<br /> break;<br /> }<br /> case 'C':<br /> {<br /> ch[0] = 'c';<br /> ch[1] = 0;<br /> strcat(pBuf,ch);<br /> CFile file("1.txt",CFile::modeWrite);<br /> file.Write(pBuf,fileLength+2);<br /> file.Close();<br /> break;<br /> }<br /> case 'D':<br /> {<br /> ch[0] = 'd';<br /> ch[1] = 0;<br /> strcat(pBuf,ch);<br /> CFile file("1.txt",CFile::modeWrite);<br /> file.Write(pBuf,fileLength+2);<br /> file.Close();<br /> break;<br /> }<br /> case 'E':<br /> {<br /> ch[0] = 'e';<br /> ch[1] = 0;<br /> strcat(pBuf,ch);<br /> CFile file("1.txt",CFile::modeWrite);<br /> file.Write(pBuf,fileLength+2);<br /> file.Close();<br /> break;<br /> }<br /> case 'F':<br /> {<br /> ch[0] = 'f';<br /> ch[1] = 0;<br /> strcat(pBuf,ch);<br /> CFile file("1.txt",CFile::modeWrite);<br /> file.Write(pBuf,fileLength+2);<br /> file.Close();<br /> break;<br /> }<br /> }<br /> delete pBuf;</p> <p> if(VK_F2==wParam)<br /> {<br /> // ::SendMessage(g_hWnd,WM_CLOSE,0,0);<br /> ::UnhookWindowsHookEx(g_hMouse);<br /> ::UnhookWindowsHookEx(g_hKeyboard);<br /> }<br /> return CallNextHookEx(g_hKeyboard,code,wParam,lParam);<br /> }

这是动态链接库中，对于键盘操作的代码．

非常奇怪的是，使用strcat函数，最后竟然一次向文本输入两个同样的字符．例如，要在键盘上输入a，则最后打开文本一看，那上面竟然是aa．就这个问题我找了一个下午，但还不知道为什么．太神奇了．不管他了．

还有一个是我给键盘安装的是一个全局钩子，但是这个钩子在其他地方不管用了．真的很奇怪．比如在记事本上输入字母，则完全无法记忆．什么东西这是．

看来还得看看其他资料．

有高兴一点的事情是，昨天晚上有FindWindow找到了domodal出来的窗口句柄，实现通讯软件中的组播与多播．

DWORD WINAPI CPpchatDlg::RecvProc(LPVOID lpParameter)<br /> {<br /> SOCKET sock = ((RECVPARAM*)lpParameter)->socket;<br /> HWND hwnd = ((RECVPARAM*)lpParameter)->hwnd;<br /> CPpchatDlg dlg;</p> <p> SOCKADDR_IN addFrom;<br /> char recvBuf[200];<br /> char tempBuf[300];<br /> int len = sizeof(SOCKADDR);<br /> int teval;</p> <p> while(TRUE)<br /> {<br /> teval = recvfrom(sock,recvBuf,200,0,(SOCKADDR*)&addFrom,&len);<br /> if (teval == SOCKET_ERROR)<br /> {<br /> break;<br /> }</p> <p> sprintf(tempBuf,"%s say: %s",inet_ntoa(addFrom.sin_addr),recvBuf);<br /> // AfxMessageBox(tempBuf);<br /> HWND chwnd = ::FindWindow(NULL,"Dialog");<br /> ::PostMessage(chwnd,WM_RECVDATA,0,(LPARAM)tempBuf);<br /> }<br /> return 0;<br /> }<br />

继续学习，继续努力！