private void setHotkeyButton_Click(object sender, EventArgs e)
{
if (presetsComboBox.SelectedItem != null && mNewHotkey.NewHotkeyIsValid)
{
uint modifierKeyCode = 0;
if ((mNewHotkey.NewHotkeyModifiers & Keys.Alt) > 0)
{
modifierKeyCode = modifierKeyCode | VirtualKeyCodes.MOD_ALT;
}
if ((mNewHotkey.NewHotkeyModifiers & Keys.Control) > 0)
{
modifierKeyCode = modifierKeyCode | VirtualKeyCodes.MOD_CONTROL;
}
if ((mNewHotkey.NewHotkeyModifiers & Keys.Shift) > 0)
{
modifierKeyCode = modifierKeyCode | VirtualKeyCodes.MOD_SHIFT;
}
uint keypressKeyCode = (uint)mNewHotkey.NewHotkeyKeyCode;
VirtualHotkey virtualKeyCode = new VirtualHotkey(modifierKeyCode, keypressKeyCode);
mPresetToHotkeyMap.SetHotkey(((DisplayPreset)presetsComboBox.SelectedItem).Name, virtualKeyCode);
}
}
/// <summary>
/// Event handler for when a display preset has a hotkey set or cleared. Registers
/// new hotkey and deregisters old hotkeys as appropriate.
/// </summary>
/// <param name="presetName">The name of the preset changed.</param>
/// <param name="virtualHotkey">The new hotkey if applicable.</param>
/// <param name="changeType">The type of change, either a hotkey has been set or removed.</param>
private void OnPresetHotkeyMapChanged(string presetName, VirtualHotkey virtualHotkey, PresetToHotkeyMap.PresetToHotkeyMappingChangeType changeType)
{
if (changeType == PresetToHotkeyMap.PresetToHotkeyMappingChangeType.HotkeyRemoved)
{
int existingHotkeyId;
if (mPresetToHotkeyId.TryGetValue(presetName, out existingHotkeyId))
{
DeregisterHotkeyAndUpdateIdMapping(presetName, existingHotkeyId);
}
else
{
throw new Exception("Tried to deregister hotkey for unknown preset: " + presetName);
}
}
else if (changeType == PresetToHotkeyMap.PresetToHotkeyMappingChangeType.HotkeySet)
{
// If a hotkey already exists for this, we need to deregister the old one
// and register the new one.
int existingHotkeyId;
if (mPresetToHotkeyId.TryGetValue(presetName, out existingHotkeyId))
{
DeregisterHotkeyAndUpdateIdMapping(presetName, existingHotkeyId);
}
RegisterHotkeyAndUpdateIdMapping(presetName, virtualHotkey);
}
}
/// <summary>
/// Set the global hotkey of a display preset.
/// </summary>
/// <param name="presetName">The display preset name.</param>
/// <param name="virtualHotkey">The virtual key code of the global hotkey with modifiers.</param>
public void SetHotkey(string presetName, VirtualHotkey virtualHotkey)
{
// Use the Item property to set the value because if it already exists
// we want to overwrite it.
mPresetToHotkeyDictionary[presetName] = virtualHotkey;
SaveMapping();
OnPresetToHotkeyMappingChanged?.Invoke(presetName, virtualHotkey, PresetToHotkeyMappingChangeType.HotkeySet);
}
/// <summary>
/// Registers a global hotkey through Windows API and associates the ID of the hotkey with the
/// name of the display preset it is intended to trigger.
/// </summary>
/// <param name="presetName">The name of the preset to register a hotkey for.</param>
/// <param name="virtualHotkey">The keycode and modifier flags of the hotkey.</param>
private void RegisterHotkeyAndUpdateIdMapping(string presetName, VirtualHotkey virtualHotkey)
{
int newHotkeyId = (int)DateTime.Now.ToFileTimeUtc();
bool result = Hotkey.RegisterHotKey(
IntPtr.Zero,
newHotkeyId,
virtualHotkey.ModifierKeyCode | VirtualKeyCodes.MOD_NOREPEAT,
virtualHotkey.KeyCode);
if (!result)
{
throw new Exception("Failed to register new hotkey for preset " + presetName +
" with ID " + newHotkeyId +
" with modifiers keycode " + virtualHotkey.ModifierKeyCode +
" with keycode " + virtualHotkey.KeyCode);
}
mPresetToHotkeyId.Add(presetName, newHotkeyId);
}
public PresetHotkeyPersistencePair(string presetName, VirtualHotkey virtualHotkey)
{
PresetName = presetName;
HotkeyKeycode = virtualHotkey;
}
private void OnPresetToHotkeyMapChanged(string presetName, VirtualHotkey keyCode, PresetToHotkeyMap.PresetToHotkeyMappingChangeType changeType)
{
// Dumbly update the entire working dictionary of preset to hotkey mappings.
mPresetToHotkeyDictionaryForComboBox = mPresetToHotkeyMap.GetHotkeyMappings();
ShowSelectedPresetKeyCombination(((DisplayPreset)presetsComboBox.SelectedItem).Name);
}
