无标题栏，无边框的窗体拖动 C#代码实例，为方便测试，弄成了黑色背景，没了关闭按钮，关闭时请按Alt+F4，另外你可以在黑色区域按住鼠标左键拖动本窗口到任意地方，拖动无边框窗体的完美例子。Visual c#实现无标题栏窗口。-No title bar, no border form drag C# code examples, to facilitate testing, ended up with a black background, not the Close button, when c