捕获提示窗体消失的事件

using System.Runtime.InteropServices;

[DllImport("user32.dll")]

public static extern bool GetClassName(IntPtr hWnd,

StringBuilder lpClassName, int nMaxCount);

public delegate bool WNDENUMPROC(IntPtr hwnd, int lParam);

[DllImport("user32.dll")]

public static extern int EnumWindows(WNDENUMPROC lpEnumFunc, int lParam);

[DllImport("user32.dll")]

public static extern uint GetWindowThreadProcessId(IntPtr hWnd,

out uint dwProcessId);

[DllImport("kernel32.dll")]

public static extern uint GetCurrentProcessId();

public class SubWindow : NativeWindow

{

protected override void WndProc(ref Message m)

{

const int WM_SHOWWINDOW = 0x0018;

switch (m.Msg)

{

case WM_SHOWWINDOW:

if (m.LParam == IntPtr.Zero)

Console.WriteLine("隐藏");

break;

}

base.WndProc(ref m);

}

}

public static bool EnumFunc(IntPtr hwnd, int lParam)

{

uint vProcessID;

GetWindowThreadProcessId(hwnd, out vProcessID);

if (vProcessID != GetCurrentProcessId()) return true;

StringBuilder vStringBuilder = new StringBuilder(255);

GetClassName(hwnd, vStringBuilder, vStringBuilder.Capacity);

if (vStringBuilder.ToString().IndexOf("tooltips_class32") > 0)

{

Console.WriteLine(vStringBuilder.ToString());

new SubWindow().AssignHandle(hwnd);

return false;

}

else return true;

}

private void Form1_Load(object sender, EventArgs e)

{

EnumWindows(EnumFunc, 0);

}