How to Bind Custom Global Hotkeys (CTRL SHIFT Letter) in WPF Applications?

Bind custom global hotkeys (CTRL SHIFT letters) in WPF applications

WPF applications allow registering global hotkeys to bind specific keyboard combinations to custom actions. To do this using the CTRL SHIFT (letter) combination, follow these steps:

Use global hotkey library

Use the comprehensive class library provided in the answer to handle hotkey registration and distribution efficiently.

Register hotkeys

To register a hotkey, create an instance of the HotKey class, specifying the target key, modifier keys (e.g., CTRL, SHIFT), and the action to be invoked when the hotkey is pressed. You can choose to register hotkeys immediately by setting the register parameter to true.

<code>_hotKey = new HotKey(Key.F9, KeyModifier.Shift | KeyModifier.Win, OnHotKeyHandler);</code>

Handling hotkey operations

Implement the OnHotKeyHandler method to perform custom actions when a registered hotkey is pressed. In this example, it demonstrates how to set the running state of the screen saver:

<code>private void OnHotKeyHandler(HotKey hotKey)
{
    SystemHelper.SetScreenSaverRunning();
}</code>

Modifier key combinations

You can combine multiple modifier keys as needed. For example, KeyModifier.Shift | KeyModifier.Ctrl | KeyModifier.Win will require all three modifier keys to be pressed simultaneously.

Windows key support

To register a hotkey that includes the Windows key, use KeyModifier.Win.

Dispose() method implementation

The custom class provided in the answer implements the IDisposable interface to ensure registered hotkeys are properly cleaned up and unmanaged resources are released. Call the Dispose() method to unregister all hotkeys associated with the instance.

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