prehistoric-systems/Flow.Launcher
1
0
Fork 0
mirror of https://github.com/Flow-Launcher/Flow.Launcher.git synced 2026-03-11 08:54:32 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

Add doc comments and additional error handling in keyboard layout switch logic

Browse source
This commit is contained in:
Yusyuriv 2025-03-23 18:40:41 +06:00
parent 48aff32f1b
commit 4df42a0f63
No known key found for this signature in database
GPG key ID: A91C52E6F73148E0
1 changed files with 16 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
Flow.Launcher.Infrastructure/Win32Helper.cs
View file

@ -350,7 +350,11 @@ namespace Flow.Launcher.Infrastructure
var handles = new HKL[count];
fixed (HKL* h = handles)
{
_ = PInvoke.GetKeyboardLayoutList(count, h);
var result = PInvoke.GetKeyboardLayoutList(count, h);
if (result != 0)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
}
// Look for any English keyboard layout
@ -369,6 +373,11 @@ namespace Flow.Launcher.Infrastructure
return HKL.Null;
}
/// <summary>
/// Switches the keyboard layout to English if available.
/// </summary>
/// <param name="backupPrevious">If true, the current keyboard layout will be stored for later restoration.</param>
/// <exception cref="Win32Exception">Thrown when there's an error getting the window thread process ID.</exception>
public static unsafe void SwitchToEnglishKeyboardLayout(bool backupPrevious)
{
// Find an installed English layout
@ -401,11 +410,17 @@ namespace Flow.Launcher.Infrastructure
PInvoke.ActivateKeyboardLayout(enHKL, 0);
}
/// <summary>
/// Restores the previously backed-up keyboard layout.
/// If it wasn't backed up or has already been restored, this method does nothing.
/// </summary>
public static void RestorePreviousKeyboardLayout()
{
if (_previousLayout == HKL.Null) return;
var hwnd = PInvoke.GetForegroundWindow();
if (hwnd == HWND.Null) return;
PInvoke.PostMessage(
hwnd,
PInvoke.WM_INPUTLANGCHANGEREQUEST,