实现效果:

知识运用:
LockTaskBar键值
实现代码:
private void button1_Click(object sender, EventArgs e)
{
Registry.SetValue(@"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer","LockTaskBar",1);
}
private void button2_Click(object sender, EventArgs e)
{
Registry.SetValue(@"HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer", "LockTaskBar", 0);
}
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