Question

我正在尝试使用StatusStrip调整无边框窗体的大小（我出于多种原因使用工具条）。我已成功移动了一个带有MenuStrip的表单，但从未调整过大小，所以我对发送消息和EventHandling有一点了解。但是，单击时StatusStrip不会移动。以下是我到目前为止的情况。

自定义StatusStrip类：

public class PassThroughStatusStrip : StatusStrip{
    protected override void WndProc(ref Message m){
        const int WM_NCHITTEST = 0x0084;
        const int HTTRANSPARENT = (-1);

        if (m.Msg == WM_NCHITTEST){
            m.Result = (IntPtr)HTTRANSPARENT;
        }else{
            base.WndProc(ref m);
        }
    }
}

设计师让我拖放这个元素，因为它将它识别为我想要的控件...

表单类：

public partial class MyForm : Form
{   
    private const int HTCAPTION = 0x2;
    public const int WM_NCLBUTTONDOWN = 0xA1;

    [DllImportAttribute("user32.dll")]
    private static extern int SendMessage(IntPtr hWnd, int Msg, int wParam, int lParam);
    [DllImportAttribute("user32.dll")]
    private static extern bool ReleaseCapture();

    public MyForm()
    {
        InitializeComponent();
    }
    private void StatusStrip_MouseDown(object sender, MouseEventArgs e)
    {
        if (e.Button == MouseButtons.Left){
            ReleaseCapture();
            SendMessage(Handle, WM_NCLBUTTONDOWN, HTCAPTION, 0);
        }
    }
    private void StatusStrip_MouseMove(object sender, MouseEventArgs e)
    {
        if (!Focused)
        {
            Focus();
        }
    }
}

我甚至手动将StatusStrip_MouseMove和StatusStrip_MouseDown添加到MyForm.Designer.cs EventHandling：

this.StatusStrip.MouseDown += new System.Windows.Forms.MouseEventHandler(this.StatusStrip_MouseDown);
this.StatusStrip.MouseMove += new System.Windows.Forms.MouseEventHandler(this.StatusStrip_MouseMove);

但StatusStrip仍然无效。我错过了什么吗？

C＃ - 如何使StatusStrip调整无边框窗体的大小

0 个答案: