Add drag behavior to a form with FormBorderStyle set to None [duplicate]

问题

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Closed 6 years ago.

Possible Duplicate:
C# - Make a borderless form movable?

If I set my form's FormBorderStyle to None, I lose the drag behavior of the form, as expected.

I've added a custom bar to the top of my form and I like it to stay that way, now is it possible to keep the form in this mode and have (or write) drag behavior?

If it's possible, how should I do so. I really hope to find a Yes it's possible answer. :)

回答1:

private const Int32 WM_NCHITTEST = 0x84;
private const Int32 HTCLIENT = 0x1;
private const Int32 HTCAPTION = 0x2;

protected override void WndProc(ref Message m)
{
    if (m.Msg == WM_NCHITTEST)
    {
        base.WndProc(ref m);

        if ((Int32)m.Result == HTCLIENT)
            m.Result = (IntPtr)HTCAPTION;

        return;
    }

    base.WndProc(ref m);
}

来源：https://stackoverflow.com/questions/14363162/add-drag-behavior-to-a-form-with-formborderstyle-set-to-none