其他窗口的访问控制 [英] access controls on other windows

问题描述

如何访问另一个应用程序窗口上的控件?
我需要更改该控件的值(如文本框)或单击它们(如按钮).
我想我应该使用 API 函数吗?但是如何?

How can I access to the controls on another application's window?
I need to change the value of that controls (like textboxes) or click on them (like buttons).
I think I Should use API functions? But how?

推荐答案

请参阅 SendKeys 类 并阅读这篇文章，这是文章中的一个例子:

See the SendKeys class and read this article, here is an example from the article:

// Get a handle to an application window.
[DllImport("USER32.DLL", CharSet = CharSet.Unicode)]
public static extern IntPtr FindWindow(string lpClassName,
    string lpWindowName);

// Activate an application window.
[DllImport("USER32.DLL")]
public static extern bool SetForegroundWindow(IntPtr hWnd);

// Send a series of key presses to the Calculator application.
private void button1_Click(object sender, EventArgs e)
{
    // Get a handle to the Calculator application. The window class
    // and window name were obtained using the Spy++ tool.
    IntPtr calculatorHandle = FindWindow("CalcFrame","Calculator");

    // Verify that Calculator is a running process.
    if (calculatorHandle == IntPtr.Zero)
    {
        MessageBox.Show("Calculator is not running.");
        return;
    }

    // Make Calculator the foreground application and send it 
    // a set of calculations.
    SetForegroundWindow(calculatorHandle);
    SendKeys.SendWait("111");
    SendKeys.SendWait("*");
    SendKeys.SendWait("11");
    SendKeys.SendWait("=");
}

这篇关于其他窗口的访问控制的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！