windows 6 管道、进程遍历
管道命名管道
匿名管道-父子进程之间的数据传输
创建：CreatePipe
读：ReadFile
写：WriteFile
获取句柄：GetStdHandle
查看管道是否有数据可读：PeekNamedPipe
新建两个MFC应用程序
ParentDlg.h
123456789101112131415161718192021222324252627282930313233343536373839// ParentDlg.h: 头文件//#pragma once// CParentDlg 对话框class CParentDlg : public CDialogEx{// 构造public: CParentDlg(CWnd* pParent = nullptr); // 标准构造函数// 对话框数据#ifdef AFX_DESIGN_TIME enum { IDD = IDD_PARENT_DIALOG };#endif protected: virtual void DoDataExchange(CDataExchange* ...
windows 5 进程间通信
进程间通信发送消息一般是自定义消息，使用SendMessage发送
新建项目
123456#define MS_TEST WM_USER+1 //自定义消息void CA1Dlg::OnBnClickedButton1(){ HWND hWndB = ::FindWindow(NULL, "B1"); ::SendMessage(hWndB, MS_TEST, 0x12456789, 0x98745612);}
添加自定义消息，确定后点击编辑代码
1234567afx_msg LRESULT CB1Dlg::OnMsTest(WPARAM wParam, LPARAM lParam){ CString strFmt; strFmt.Format("w:%08x,l:%08x", wParam, lParam); AfxMessageBox(strFmt); return 0;}
在头文件处要添加定义
在B1初始化处要给窗口添加名字
123456789101112 ...
windows 4 跨进程使用句柄、操作内存
跨进程使用句柄
A进程拿到句柄，把值给B进程，B进程能不能直接使用？
继承方式创建MFC应用
新建按钮
使用多字节字符集
新建编辑框，修改ID
1234567891011121314151617181920212223242526272829303132333435void CADlg::OnBnClickedButton1(){ // TODO: 在此添加控件通知处理程序代码 STARTUPINFO si; PROCESS_INFORMATION pi; ZeroMemory(&si, sizeof(si)); si.cb = sizeof(si); ZeroMemory(&pi, sizeof(pi)); SECURITY_ATTRIBUTES sa = {}; sa.nLength = sizeof(sa); sa.bInheritHandle = TRUE;//进程句柄允许被继承 //Start the child process. if (!CreateProcess(NULL, "B. ...
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