IWin32Window インターフェイスは、IntPtr
という名前のプロパティのみを提供する単純なインターフェイスですHandle
。おそらく、このようなものがうまくいくはずです:
using System;
using System.Runtime.InteropServices;
using System.Windows.Forms;
namespace SO_ToolTip
{
public partial class Form1 : Form
{
[DllImport("user32.dll")]
public static extern IntPtr GetDesktopWindow();
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
WindowWrapper windowWrapper = new WindowWrapper(GetDesktopWindow());
ToolTip toolTip = new ToolTip();
toolTip.Show("Blah blah... Blah blah... Blah blah...", windowWrapper, 1, 1, 10000);
}
}
public class WindowWrapper : IWin32Window
{
public WindowWrapper(IntPtr handle)
{
Handle = handle;
}
public IntPtr Handle { get; protected set; }
}
}
しかし、そうではありません。NullReferenceException について不平を言い、それ以上デバッグしていません。これは機能します:
...
private void button1_Click(object sender, EventArgs e)
{
ToolTip toolTip = new ToolTip();
toolTip.Show("Blah blah... Blah blah... Blah blah...", this, 1, 1, 10000);
}
...
位置は現在のフォームに相対的ですが。たぶん、それはあなたを正しい方向に導くでしょう。
編集:これでもうまくいかないので、それが WindowWrapper の問題なのか(どのように?)、それとも何なのかわかりません:
...
private void button1_Click(object sender, EventArgs e)
{
WindowWrapper windowWrapper = new WindowWrapper(this.Handle);
ToolTip toolTip = new ToolTip();
toolTip.Show("Blah blah... Blah blah... Blah blah...", windowWrapper, 1, 1, 10000);
}
...
では、透明で最大化されたフォームを使用してBringToFront()
、ToolTip
Form1 コード:
using System;
using System.Windows.Forms;
namespace SO_ToolTip
{
public partial class Form1 : Form
{
Random _Random = new Random();
ToolTip _ToolTip = new ToolTip();
public Form1()
{
InitializeComponent();
}
private void timer1_Tick(object sender, EventArgs e)
{
BringToFront();
_ToolTip.Show("Blah blah... Blah blah... Blah blah...", this, _Random.Next(0, Width), _Random.Next(0, Height), 10000);
}
}
}
Form1 デザイナー コード:フォームのプロパティを確認できます。
namespace SO_ToolTip
{
partial class Form1
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components = null;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
this.timer1 = new System.Windows.Forms.Timer(this.components);
this.SuspendLayout();
//
// timer1
//
this.timer1.Enabled = true;
this.timer1.Interval = 1000;
this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(284, 264);
this.ControlBox = false;
this.MaximizeBox = false;
this.MinimizeBox = false;
this.Name = "Form1";
this.Opacity = 0;
this.ShowIcon = false;
this.ShowInTaskbar = false;
this.WindowState = System.Windows.Forms.FormWindowState.Maximized;
this.ResumeLayout(false);
}
#endregion
private System.Windows.Forms.Timer timer1;
}
}