[英]C# Minimize to system tray on close
嗨,在我的C#應用程序中,當表單關閉時,我試圖將應用程序最小化到系統托盤。 這是我嘗試過的代碼。
public void MinimizeToTray()
{
try
{
notifyIcon1.BalloonTipTitle = "Sample text";
notifyIcon1.BalloonTipText = "Form is minimized";
if (FormWindowState.Minimized == this.WindowState)
{
notifyIcon1.Visible = true;
notifyIcon1.ShowBalloonTip(500);
this.Hide();
}
else if (FormWindowState.Normal == this.WindowState)
{
notifyIcon1.Visible = false;
}
}
catch(Exception ex)
{
MessageBox.Show(ex.Message);
}
}
我正在調用該方法來形成關閉事件。 但是問題是它沒有最小化托盤。 它只是關閉窗體。
e.Cancel = true;
即使您關閉計算機電源,代碼也始終會取消該事件,但是以下代碼可以幫助您:
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
if (e.CloseReason == CloseReason.UserClosing)
{
myNotifyIcon.Visible = true;
this.Hide();
e.Cancel = true;
}
}
它將允許以編程方式關閉表單。
在窗體關閉事件中編寫一個事件。
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
e.Cancel = true;
Hide();
}
並使用“自定義”菜單條編寫要顯示的通知圖標。
namespace MinimizeTrayNotification
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void MinimzedTray()
{
notifyIcon1.Visible = true;
notifyIcon1.Icon = SystemIcons.Application;
notifyIcon1.BalloonTipText = "Minimized";
notifyIcon1.BalloonTipTitle = "Your Application is Running in BackGround";
notifyIcon1.ShowBalloonTip(500);
}
private void MaxmizedFromTray()
{
notifyIcon1.Visible = true;
notifyIcon1.BalloonTipText = "Maximized";
notifyIcon1.BalloonTipTitle = "Application is Running in Foreground";
notifyIcon1.ShowBalloonTip(500);
}
private void Form1_Resize(object sender, EventArgs e)
{
if(FormWindowState.Minimized==this.WindowState)
{
MinimzedTray();
}
else if (FormWindowState.Normal == this.WindowState)
{
MaxmizedFromTray();
}
}
private void notifyIcon1_MouseDoubleClick(object sender, MouseEventArgs e)
{
this.WindowState = FormWindowState.Normal;
Form1 frm = new Form1();
frm.Show();
MaxmizedFromTray();
}
private void notifyIcon1_MouseClick(object sender, MouseEventArgs e)
{
this.WindowState = FormWindowState.Normal;
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
if (e.CloseReason == CloseReason.UserClosing)
{
e.Cancel = true;
this.WindowState = FormWindowState.Minimized;
this.ShowInTaskbar = false;
this.Hide();
}
}
private void notifyIcon1_Click(object sender, EventArgs e)
{
this.WindowState = FormWindowState.Normal;
notifyIcon1.BalloonTipText = "Normal";
notifyIcon1.ShowBalloonTip(500);
}
}
}
您應該取消FormClosing
事件,然后調用MinimizeToTray()
函數。
這是通過FormClosingEventArgs
的Cancel
屬性完成的。
另外,考慮在某些情況下使用bool
允許在某些情況下關閉Form
,例如,如果您使用的是File > Exit
菜單或其他方法:
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
if(!allowClosing)
{
e.Cancel = true;
MinimizeToTray();
}
}
關閉時最小化將WindowState設置為Minimized
private void Form1_FormClosing(Object sender, FormClosingEventArgs e) {
e.Cancel = true;
WindowState = FormWindowState.Minimized;
}
您需要使用FormClosing-Event。
private void Form1_FormClosing(Object sender, FormClosingEventArgs e) {
e.Cancel = true;
MinimizeToTray();
}
您可以按照以下C#示例處理FormClosing
事件,例如micsoft表單關閉事件
private void Form1_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
// Determine if text has changed in the textbox by comparing to original text.
if (textBox1.Text != strMyOriginalText)
{
// Display a MsgBox asking the user to save changes or abort.
if (MessageBox.Show("Do you want to save changes to your text?", "My Application",
MessageBoxButtons.YesNo) == DialogResult.Yes)
{
// Cancel the Closing event from closing the form.
e.Cancel = true;
// Call method to save file...
}
}
}
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