苏州大学操作系统实验二进程间通信李培峰班

#include <Windows.h> #include "resource.h" wchar_t data[1000]; HWND childHwnd; HANDLE hmap = NULL; LPVOID lpdata = NULL; HWND win = NULL; LRESULT CALLBACK WinMainProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM LParam); INT_PTR CALLBACK DlgProc(HWND hdlg, UINT msg, WPARAM wParam, LPARAM lParam); HINSTANCE hgapp; //当前应用程序句柄 int WINAPI WinMain(HINSTANCE hThisApp, HINSTANCE hPrevApp, LPSTR lpCmd, int nShow) { LPCWSTR title = L"Father_Process"; WNDCLASS wc = { sizeof(WNDCLASS) }; wc.hbrBackground = (HBRUSH)COLOR_WINDOW; wc.hInstance = hThisApp; wc.lpfnWndProc = WinMainProc; wc.lpszClassName = title; wc.style = CS_HREDRAW | CS_VREDRAW; RegisterClass(&wc); HWND hwnd = CreateWindow(title, L"Father_Process", WS_OVERLAPPEDWINDOW,50, 50, 320, 240, NULL, NULL, hThisApp, NULL); if (!hwnd) return 0; hgapp = hThisApp; ShowWindow(hwnd, nShow); UpdateWindow(hwnd); MSG msg; while (GetMessage(&msg, NULL, 0, 0)) { TranslateMessage(&msg); DispatchMessage(&msg); } return 0; } LRESULT CALLBACK WinMainProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM LParam) { HWND hdlg = NULL; switch (msg) { case WM_CREATE: hdlg = CreateDialog(hgapp, MAKEINTRESOURCE(WIN), hwnd, (DLGPROC)DlgProc); if (hdlg) { win = hdlg; ShowWindow(hdlg, SW_NORMAL); } return 0; case WM_DESTROY: PostQuitMessage(0); return 0; case LB_ADDSTRING: { SendMessage(GetDlgItem(win,SHOWCHAT), msg, wParam, LParam); return 0; } case WM_SETTEXT: { hmap = OpenFileMappingA(FILE_MAP_READ, FALSE, "share"); lpdata = MapViewOfFile(hmap, FILE_MAP_READ, 0, 0, 0); SendMessage(GetDlgItem(win, SHOWFILE), msg, NULL, (LPARAM)lpdata); UnmapViewOfFile(lpdata); CloseHandle(hmap); return 0; } default: return DefWindowProc(hwnd, msg, wParam, LParam); } return 0; } INT_PTR CALLBACK DlgProc(HWND hdlg, UINT msg, WPARAM wParam, LPARAM lParam) { int dwLen =0; int nwLen =0; LPWSTR lpszPath = NULL; switch (msg) { case WM_SYSCOMMAND: if (wParam == SC_CLOSE) { DestroyWindow(hdlg); } return 0; case WM_COMMAND: { switch (LOWORD(wParam)) { case COM_CHAT: childHwnd = FindWindow(L"Child_Process", L"Child_Process"); SendMessage(GetDlgItem(hdlg,CHATBOX), WM_GETTEXT, 1000, (LPARAM)data); SendMessage(childHwnd, LB_ADDSTRING, NULL, (LPARAM)data); break; case FIND_FILE: OPENFILENAME opfn; WCHAR strFilename[MAX_PATH]; ZeroMemory(&opfn, sizeof(OPENFILENAME)); opfn.lStructSize = sizeof(OPENFILENAME); opfn.lpstrFilter = L"*.*\0*.*\0*.txt\0*.txt\0"; opfn.nFilterIndex = 1; opfn.lpstrFile = strFilename; opfn.lpstrFile[0] = '\0'; opfn.nMaxFile = sizeof(strFilename); opfn.Flags = OFN_FILEMUSTEXIST | OFN_PATHMUSTEXIST; if (GetOpenFileName(&opfn)) { SendMessage(GetDlgItem(hdlg, FILE), WM_SETTEXT, NULL, (LPARAM)strFilename); } HANDLE hFile; hFile = CreateFile(strFilename, GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); char buff[1000]; DWORD dwReads; ReadFile(hFile, buff, 1000, &dwReads, NULL); buff[dwReads] = 0; dwLen = strlen(buff) + 1; nwLen = MultiByteToWideChar(CP_ACP, 0, buff, dwLen, NULL, 0);//算出合适的长度 lpszPath = new WCHAR[dwLen]; MultiByteToWideChar(CP_ACP, 0, buff, dwLen, lpszPath, nwLen); SendMessage(GetDlgItem(hdlg, FILE_CON), WM_SETTEXT, NULL, (LPARAM)lpszPath); CloseHandle(hFile); break; case COM_FILE: childHwnd = FindWindow(L"Child_Process", L"Child_Process"); hmap = CreateFileMappingA(INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE | SEC_COMMIT, 0, 10000, "share"); lpdata = MapViewOfFile(hmap, FILE_MAP_READ | FILE_MAP_WRITE, 0, 0, 0); ZeroMemory(lpdata, sizeof(lpdata)); SendMessage(GetDlgItem(win, FILE_CON), WM_GETTEXT, 10000, (LPARAM)lpdata); SendMessage(childHwnd, WM_SETTEXT, NULL, NULL); break; case CREATE: PROCESS_INFORMATION pro_info; STARTUPINFO sti; ZeroMemory(&pro_info, sizeof(PROCESS_INFORMATION)); ZeroMemory(&sti, sizeof(STARTUPINFO)); sti.cb = sizeof(sti); CreateProcess(L"childprocess.exe", NULL, NULL, NULL, FALSE, 0, NULL, NULL, &sti, &pro_info); CloseHandle(pro_info.hProcess); CloseHandle(pro_info.hThread); break; } } return 0; } return (INT_PTR)FALSE; }