sendmessage API中的按钮点击 [英] Button click in sendmessage API

问题描述

如何在 C# 中模拟 sendmessage API 中的按钮点击?

How can I simulate a button click in the sendmessage API in C#?

推荐答案

C 代码:

#include <Windows.h>
//...
SendMessage(hWndButton, BM_CLICK, 0, 0);

C# 代码:

[DllImport("user32.dll")]
static extern IntPtr SendMessage(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);

...
Button myButton = ...;
const int BM_CLICK = 0x00F5;
SendMessage(myButton.Handle, BM_CLICK, IntPtr.Zero, IntPtr.Zero);

但请注意，在 C# 中，您也可以轻松做到:

But be aware that, in C#, you can just as easily do:

myButton.PerformClick();

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