In WPF, when user click on Minimize
button, I want window state still normal state. Nothing happened when click it. But I don't want to disable Minimize
button, Minimize
button is enable and visible, just do nothing when click.
How can I do it?
You can achieve this on StateChanged event. In XAML:
<Window x:Class="WpfApp.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
StateChanged="Window_StateChanged">
In Code:
private void Window_StateChanged(object sender, EventArgs e)
{
if (this.WindowState == WindowState.Minimized)
this.WindowState = WindowState.Normal;
}
This is a slightly modified form of this answer , which I'll treat as not being a duplicate due to the unneccessary resize:
using System.Windows.Interop;
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
this.SourceInitialized += new EventHandler(OnSourceInitialized);
}
private void OnSourceInitialized(object sender, EventArgs e)
{
HwndSource source = (HwndSource)PresentationSource.FromVisual(this);
source.AddHook(new HwndSourceHook(HandleMessages));
}
private IntPtr HandleMessages(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
// 0x0112 == WM_SYSCOMMAND, 'Window' command message.
// 0xF020 == SC_MINIMIZE, command to minimize the window.
if (msg == 0x0112 && ((int)wParam & 0xFFF0) == 0xF020)
{
// Cancel the minimize.
handled = true;
}
return IntPtr.Zero;
}
}
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