C#如何讓WinForm嵌入桌面窗口最底層

此類将窗體(tǐ)永遠置于窗口最底層。

首先, 調用一(yī)些User32.dll的WinAPI函數。

internal class User32
{
public const int SE_SHUTDOWN_PRIVILEGE = 0x13;

[DllImport("user32.dll")]
public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

[DllImport("user32.dll")]
public static extern IntPtr SetParent(IntPtr hWndChild, IntPtr hWndNewParent);

[DllImport("user32.dll")]
public static extern bool SetWindowPos(IntPtr hWnd, int hWndInsertAfter, int X, int Y, int cx,
int cy, uint uFlags);
}然後, 在WinForm裏面：
public MainForm()
{
InitializeComponent();

try
{
if (Environment.OSVersion.Version.Major < 6)
{
base.SendToBack();

IntPtr hWndNewParent = User32.FindWindow("Progman", null);
User32.SetParent(base.Handle, hWndNewParent);
}
else
{
User32.SetWindowPos(base.Handle, 1, 0, 0, 0, 0, User32.SE_SHUTDOWN_PRIVILEGE);
}
}
catch (ApplicationException exx)
{
MessageBox.Show(this, exx.Message, "Pin to Desktop");
}
}

private void MainForm_Activated(object sender, EventArgs e)
{
if (Environment.OSVersion.Version.Major >= 6)
{
User32.SetWindowPos(base.Handle, 1, 0, 0, 0, 0, User32.SE_SHUTDOWN_PRIVILEGE);
}
}

private void MainForm_Paint(object sender, PaintEventArgs e)
{
if (Environment.OSVersion.Version.Major >= 6)
{
User32.SetWindowPos(base.Handle, 1, 0, 0, 0, 0, User32.SE_SHUTDOWN_PRIVILEGE);
}
}以上介紹的就是C#如何讓WinForm嵌入桌面窗口最底層，希望對你有所幫助。