c# - 用鼠标拖动无边框窗体

Question

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Answer 1

这应该是您要找的"Enhanced: Drag and move WinForms"

public partial class MyDraggableForm : Form
{
    private const int WM_NCHITTEST = 0x84;
    private const int HTCLIENT = 0x1;
    private const int HTCAPTION = 0x2;

    ///
    /// Handling the window messages
    ///
    protected override void WndProc(ref Message message)
    {
        base.WndProc(ref message);

        if (message.Msg == WM_NCHITTEST && (int)message.Result == HTCLIENT)
            message.Result = (IntPtr)HTCAPTION;
    }
    public MyDraggableForm()
    {
        InitializeComponent();
    }
}

正如博文所述，这是一种“愚弄”系统的方法。这样您就无需考虑鼠标上/下事件。