单击sendmessage API中的按钮

Question

如何在C#中的sendmessage API中模拟按钮单击？

Answer 1

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,您可以轻松地做到:

myButton.PerformClick();