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[PowerToys Run] Use global HotKey instead of low level keyboard hook (#13114)

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* [PowerToys Run] Register global HotKey

Using low level keyboard hooks caused focus issues when invoking
PowerToys Run. Using a global HotKey solves this issue.

* Properly unregister hotkey on dispose

* fix spellchecker errors
This commit is contained in:
Jaime Bernardo
2021-09-08 18:39:51 +01:00
committed by GitHub
parent 2c58bdbfb2
commit 5963294b04
8 changed files with 189 additions and 50 deletions
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38
src/modules/launcher/PowerLauncher/MainWindow.xaml.cs
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@@ -5,6 +5,7 @@
using System;
using System.ComponentModel;
using System.Linq;
using System.Runtime.InteropServices;
using System.Timers;
using System.Windows;
using System.Windows.Controls;
@@ -96,10 +97,39 @@ namespace PowerLauncher
Activate();
}
private const string EnvironmentChangeType = "Environment";
#pragma warning disable CA1801 // Review unused parameters
public IntPtr ProcessWindowMessages(IntPtr hwnd, int msg, IntPtr wparam, IntPtr lparam, ref bool handled)
#pragma warning restore CA1801 // Review unused parameters
{
switch ((WM)msg)
{
case WM.SETTINGCHANGE:
string changeType = Marshal.PtrToStringUni(lparam);
if (changeType == EnvironmentChangeType)
{
Log.Info("Reload environment", typeof(EnvironmentHelper));
EnvironmentHelper.UpdateEnvironment();
handled = true;
}
break;
case WM.HOTKEY:
handled = _viewModel.ProcessHotKeyMessages(wparam, lparam);
break;
}
return IntPtr.Zero;
}
private void OnSourceInitialized(object sender, EventArgs e)
{
_hwndSource = HwndSource.FromHwnd(new WindowInteropHelper(this).Handle);
_hwndSource.AddHook(EnvironmentHelper.ProcessWindowMessages);
_hwndSource.AddHook(ProcessWindowMessages);
// Call RegisterHotKey only after a window handle can be used, so that a global hotkey can be registered.
_viewModel.RegisterHotkey(_hwndSource.Handle);
}
private void OnLoaded(object sender, RoutedEventArgs e)
@@ -489,5 +519,11 @@ namespace PowerLauncher
Dispose(disposing: true);
GC.SuppressFinalize(this);
}
private void OnClosed(object sender, EventArgs e)
{
_hwndSource.RemoveHook(ProcessWindowMessages);
_hwndSource = null;
}
}
}