新建进程
时间:2008-07-24 05:30:23
来源:论坛整理 作者: 编辑:chinaitzhe
网友回复:新建进程可以用ShellExecute, CreateProcess或者WinExec函数。
1。ShellExecute(NULL, "open", "c:\\windows\\notepad.exe", NULL, NULL, SW_SHOWNORMAL)
2。STARTUPINFO si = {0};
si.cb = sizeof(si);
PROCESS_INFORMATION pi = {0};
CreateProcess(NULL, "c:\\windows\\notepad.exe", NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi);
3。WinExec("c:\\windows\\notepad.exe", SW_SHOWNORMAL);
主进程向新建的进程发个消息依靠于你这里的消息发送机制了。比如通过socket,pipe,WM_COPYDATA,Memory Map File等等。
网友回复:
up!!
网友回复:
- C/C code
Code highlighting produced by Actipro CodeHighlighter (freeware) http://www.CodeHighlighter.com/ WinExec("MyWin.exe", SW_HIDE); HWND hAppWnd = ::FindWindow(NULL, "MyWin"); if (hAppWnd) { ::SendMessage(hAppWnd, WM_HELLO, (LPARAM)0, (WPARAM)0); }
网友回复:我用这个WinExec("c:\\windows\\notepad.exe", SW_SHOWNORMAL); 建得一个记事本,但是怎么向它发送信息呢,我用HWND hAppWnd = ::FindWindow(NULL, "无标题 - 记事本");获得它的句柄了,但是用SendMessage为什么发送不了消息呢。记事本还是空白的啊
网友回复:
需要自定义WM_HELLO 消息!
网友回复:在C 里面哦,没用VC,也没用MFC,怎么定义消息呢
网友回复:
#define MY_MSG WM_USER 100
要求发送方和接收方进程都由你自己编写
网友回复:还有。。
网友回复:
- C/C code
Code highlighting produced by Actipro CodeHighlighter (freeware) http://www.CodeHighlighter.com/ 在Windows程序中,各个进程之间经常需要交换数据,进行数据通讯。常用的方法有 使用内存映射文件 通过共享内存DLL共享内存 使用SendMessage向另一进程发送WM_COPYDATA消息 比起前两种的复杂实现来,WM_COPYDATA消息无疑是一种经济实惠的一中方法. WM_COPYDATA消息的主要目的是答应在进程间传递只读数据。Windows在通过WM_COPYDATA消息传递期间,不提供继续同步方式。SDK文档推荐用户使用SendMessage函数,接受方在数据拷贝完成前不返回,这样发送方就不可能删除和修改数据: 这个函数的原型及其要用到的结构如下: SendMessage(hwnd,WM_COPYDATA,wParam,lParam); 其中,WM_COPYDATA对应的十六进制数为0x004A wParam设置为包含数据的窗口的句柄。lParam指向一个COPYDATASTRUCT的结构: typedef struct tagCOPYDATASTRUCT{ DWORD dwData;//用户定义数据 DWORD cbData;//数据大小 PVOID lpData;//指向数据的指针 }COPYDATASTRUCT; 该结构用来定义用户数据。 具体过程如下: 首先,在发送方,用FindWindow找到接受方的句柄,然后向接受方发送WM_COPYDATA消息. 接受方在DefWndProc事件中,来处理这条消息.由于中文编码是两个字节,所以传递中文时候字节长度要搞清楚. 代码中有适量的解释,大家请自己看吧. 具体代码如下: //--------------------------------------------------- //发送方: //--------------------------------------------------- using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; using System.Runtime.InteropServices; namespace WindowsFormGetMsg { public class Form1 : System.Windows.Forms.Form { private System.Windows.Forms.TextBox textBox1; private System.ComponentModel.Container components = null; const int WM_COPYDATA = 0x004A; public Form1() { InitializeComponent(); } protected override void Dispose( bool disposing ) { if( disposing ) { if (components != null) { components.Dispose(); } } base.Dispose( disposing ); } #region Windows Form Designer generated code private void InitializeComponent() { this.textBox1 = new System.Windows.Forms.TextBox(); this.SuspendLayout(); // // textBox1 // this.textBox1.Location = new System.Drawing.Point (176, 32); this.textBox1.Name = "textBox1"; this.textBox1.Size = new System.Drawing.Size(160, 21); this.textBox1.TabIndex = 0; this.textBox1.Text = "textBox1"; // // Form1 // this.AutoScaleBaseSize = new System.Drawing.Size(6, 14); this.ClientSize = new System.Drawing.Size(432, 266); this.Controls.AddRange(new System.Windows.Forms.Control[] { this.textBox1}); this.Name = "Form1"; this.Text = "接收方"; this.ResumeLayout(false); } #endregion [STAThread] static void Main() { Application.Run(new Form1()); } protected override void DefWndProc(ref System.Windows.Forms.Message m) { switch(m.Msg) { //接收自定义消息 USER,并显示其参数 case WM_COPYDATA: COPYDATASTRUCT mystr = new COPYDATASTRUCT(); Type mytype = mystr.GetType(); mystr =(COPYDATASTRUCT)m.GetLParam(mytype); this.textBox1.Text =mystr.lpData; break; default: base.DefWndProc(ref m); break; } } } [StructLayout(LayoutKind.Sequential)] public struct COPYDATASTRUCT { public IntPtr dwData; public int cbData; [MarshalAs(UnmanagedType.LPStr)] public string lpData; } } //--------------------------------------------------- //接受方 //--------------------------------------------------- using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; using System.Runtime.InteropServices; namespace WindowsFormGetMsg { public class Form1 : System.Windows.Forms.Form { private System.Windows.Forms.TextBox textBox1; private System.ComponentModel.Container components = null; const int WM_COPYDATA = 0x004A; public Form1() { InitializeComponent(); } protected override void Dispose( bool disposing ) { if( disposing ) { if (components != null) { components.Dispose(); } } base.Dispose( disposing ); } #region Windows Form Designer generated code private void InitializeComponent() { this.textBox1 = new System.Windows.Forms.TextBox(); this.SuspendLayout(); // // textBox1 // this.textBox1.Location = new System.Drawing.Point (176, 32); this.textBox1.Name = "textBox1"; this.textBox1.Size = new System.Drawing.Size(160, 21); this.textBox1.TabIndex = 0; this.textBox1.Text = "textBox1"; // // Form1 // this.AutoScaleBaseSize = new System.Drawing.Size(6, 14); this.ClientSize = new System.Drawing.Size(432, 266); this.Controls.AddRange(new System.Windows.Forms.Control[] { this.textBox1}); this.Name = "Form1"; this.Text = "接收方"; this.ResumeLayout(false); } #endregion [STAThread] static void Main() { Application.Run(new Form1()); } protected override void DefWndProc(ref System.Windows.Forms.Message m) { switch(m.Msg) { //接收自定义消息 USER,并显示其参数 case WM_COPYDATA: COPYDATASTRUCT mystr = new COPYDATASTRUCT(); Type mytype = mystr.GetType(); mystr =(COPYDATASTRUCT)m.GetLParam(mytype); this.textBox1.Text =mystr.lpData; break; default: base.DefWndProc(ref m); break; } } } [StructLayout(LayoutKind.Sequential)] public struct COPYDATASTRUCT { public IntPtr dwData; public int cbData; [MarshalAs(UnmanagedType.LPStr)] public string lpData; } } 作者Blog:http://blog.csdn.net/TheAres/
网友回复:很好,很强大 ^_^
网友回复:可以用 CreateConsole 这个函数
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