Position form above the clicked notify icon

问题

Is there a way to position a form just above the clicked Notify Icon in windows 7 and windows Vista?

回答1:

Regarding your comment: "how could i know how is the taskbar positioned?"

Check out the following article which contains a class which exposes a method for retrieving a Rectangle Structure for the tray: [c#] NotifyIcon - Detect MouseOut

Using this class you can retrieve the Rectangle Structure for the tray like so:

Rectangle trayRectangle = WinAPI.GetTrayRectangle();

Which will provide you with the Top, Left, Right and Bottom coordinates for the tray along with its width and height.

I have included the class below:

using System;
using System.Runtime.InteropServices;
using System.Drawing;
using System.ComponentModel;

public class WinAPI
{
    public struct RECT
    {
        public int left;
        public int top;
        public int right;
        public int bottom;

        public override string ToString()
        {
            return "(" + left + ", " + top + ") --> (" + right + ", " + bottom + ")";
        }
    }

    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    public static extern IntPtr FindWindow(string strClassName, string strWindowName);

    [DllImport("user32.dll", SetLastError = true)]
    public static extern IntPtr FindWindowEx(IntPtr parentHandle, IntPtr childAfter, string className, IntPtr windowTitle);

    [DllImport("user32.dll")]
    [return: MarshalAs(UnmanagedType.Bool)]
    static extern bool GetWindowRect(IntPtr hWnd, out RECT lpRect);


    public static IntPtr GetTrayHandle()
    {
        IntPtr taskBarHandle = WinAPI.FindWindow("Shell_TrayWnd", null);
        if (!taskBarHandle.Equals(IntPtr.Zero))
        {
            return WinAPI.FindWindowEx(taskBarHandle, IntPtr.Zero, "TrayNotifyWnd", IntPtr.Zero);
        }
        return IntPtr.Zero;
    }

    public static Rectangle GetTrayRectangle()
    {
        WinAPI.RECT rect;
        WinAPI.GetWindowRect(WinAPI.GetTrayHandle(), out rect);
        return new Rectangle(new Point(rect.left, rect.top), new Size((rect.right - rect.left) + 1, (rect.bottom - rect.top) + 1));
    }
}

Hope this helps.

回答2:

Here is an easier way.

You can get X,Y position of the mouse when the OnClick event is fired. You can also get the taskbar position with somes checks from these objects Screen.PrimaryScreen.Bounds, Screen.PrimaryScreen.WorkingArea.

    private void OnTrayClick(object sender, EventArgs e)
    {
        _frmMain.Left = Cursor.Position.X;
        _frmMain.Top = Screen.PrimaryScreen.WorkingArea.Bottom -_frmMain.Height;
        _frmMain.Show();        
    }

来源：https://stackoverflow.com/questions/7294878/position-form-above-the-clicked-notify-icon

标签

winforms

position

notifyicon