有點糊塗.

今天做了一個下午的HOOK,要做一個有記憶鍵盤功能的全局鉤子,沒想到搞半天做了一個亂七八糟的東西出來，哎．．有點遺憾．

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

這是動態鏈接庫中，對於鍵盤操作的代碼．

非常奇怪的是，使用strcat函數，最後竟然一次向文本輸入兩個同樣的字符．例如，要在鍵盤上輸入a，則最後打開文本一看，那上面竟然是aa．就這個問題我找了一個下午，但還不知道爲什麼．太神奇了．不管他了．

還有一個是我給鍵盤安裝的是一個全局鉤子，但是這個鉤子在其他地方不管用了．真的很奇怪．比如在記事本上輸入字母，則完全無法記憶．什麼東西這是．

看來還得看看其他資料．

有高興一點的事情是，昨天晚上有FindWindow找到了domodal出來的窗口句柄，實現通訊軟件中的組播與多播．

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

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