C#如何让WinForm嵌入桌面窗口最底层
2010-03-26 来自:csdnBlog
- 摘要:本文介绍C#使用Windows API函数:SetParent、SetWindowPos和FindWindow实现让WinForm嵌入桌面窗口最底层,并提供详细的实现代码供参考。
此类将窗体永远置于窗口最底层。
首先, 调用一些User32.dll的WinAPI函数。
然后, 在WinForm里面: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);
}
以上介绍的就是C#如何让WinForm嵌入桌面窗口最底层,希望对你有所帮助。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);
}
}
作者:zfrong