代码如下 : using System.Runtime.InteropServices;
[DllImport("User32.DLL")]
public static extern int SendMessage(IntPtr hWnd, uint Msg, int wParam, string lParam);
[DllImport("User32.DLL")]
public static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);
public const uint WM_SETTEXT = 0x000C; private void button1_Click(object sender, EventArgs e) { Process vProcess = Process.Start("notepad.exe");
while (vProcess.MainWindowHandle == IntPtr.Zero) vProcess.Refresh();
IntPtr vHandle = FindWindowEx(vProcess.MainWindowHandle, IntPtr.Zero, "Edit", null); // 定位控件
SendMessage(vHandle, WM_SETTEXT, 0, "Zswang 路过"); // 发送消息 }这个是通过句柄控制其他的程序吗?
[DllImport("User32.DLL")]
public static extern int SendMessage(IntPtr hWnd, uint Msg, int wParam, string lParam);
[DllImport("User32.DLL")]
public static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);
public const uint WM_SETTEXT = 0x000C; private void button1_Click(object sender, EventArgs e) { Process vProcess = Process.Start("notepad.exe");
while (vProcess.MainWindowHandle == IntPtr.Zero) vProcess.Refresh();
IntPtr vHandle = FindWindowEx(vProcess.MainWindowHandle, IntPtr.Zero, "Edit", null); // 定位控件
SendMessage(vHandle, WM_SETTEXT, 0, "Zswang 路过"); // 发送消息 }这个是通过句柄控制其他的程序吗?
using System.Diagnostics;[DllImport("User32.DLL")]
public static extern int SendMessage(IntPtr hWnd,
uint Msg, int wParam, string lParam);
[DllImport("User32.DLL")]
public static extern IntPtr FindWindowEx(IntPtr hwndParent,
IntPtr hwndChildAfter, string lpszClass, string lpszWindow);
public const uint WM_SETTEXT = 0x000C;
private void button1_Click(object sender, EventArgs e)
{
Process vProcess = Process.Start("notepad.exe"); // 启动记事本程序
while (vProcess.MainWindowHandle == IntPtr.Zero) vProcess.Refresh(); // 等待记事本进程创建出主窗体
IntPtr vHandle = FindWindowEx(vProcess.MainWindowHandle,
IntPtr.Zero, "Edit", null); // 在主窗体中查询类名为Edit的子窗体
SendMessage(vHandle, WM_SETTEXT, 0, "Zswang 路过"); // 向Edit子窗体发送一个WM_SETTEXT消息,目的是设置文本为“Zswang 路过”
}具体查看MSDN WinForm开发相关内容