/// <summary>
/// Determines whether the specified keyboard modifiers are currently pressed.
/// </summary>
/// <param name="modifier">One or more keyboard modifiers.</param>
/// <param name="checkForExactModifiers">if set to <c>true</c>, this check requires the exact modifiers to be pressed.</param>
/// <returns><c>true</c> if all the specified keyboard modifiers are being pressed; otherwise, <c>false</c>.</returns>
public static bool AreKeyboardModifiersPressed(ModifierKeys modifier, bool checkForExactModifiers = true)
{
var allModifiers = Enum <ModifierKeys> .GetValues();
allModifiers.Remove(ModifierKeys.None);
var currentlyPressedModifiers = GetCurrentlyPressedModifiers();
if (checkForExactModifiers)
{
if (modifier == ModifierKeys.None)
{
if (currentlyPressedModifiers.Count > 0)
{
if (currentlyPressedModifiers[0] != ModifierKeys.None)
{
return(false);
}
}
}
}
if (checkForExactModifiers)
{
foreach (var currentlyPressedModifier in currentlyPressedModifiers)
{
if (!Enum <ModifierKeys> .Flags.IsFlagSet(modifier, currentlyPressedModifier))
{
// Pressed but not expected
return(false);
}
}
}
foreach (var modifierToCheck in allModifiers)
{
if (Enum <ModifierKeys> .Flags.IsFlagSet(modifier, modifierToCheck))
{
// Key is expected, checking if it is pressed
if (!currentlyPressedModifiers.Contains(modifierToCheck))
{
return(false);
}
}
}
return(true);
}
/// <summary>
/// Determines whether the specified keyboard modifiers are currently pressed.
/// </summary>
/// <param name="modifier">One or more keyboard modifiers.</param>
/// <param name="checkForExactModifiers">if set to <c>true</c>, this check requires the exact modifiers to be pressed.</param>
/// <returns><c>true</c> if all the specified keyboard modifiers are being pressed; otherwise, <c>false</c>.</returns>
public static bool AreKeyboardModifiersPressed(ModifierKeys modifier, bool checkForExactModifiers = true)
{
var allModifiers = Enum<ModifierKeys>.GetValues();
var currentlyPressedModifiers = GetCurrentlyPressedModifiers();
if (checkForExactModifiers)
{
if (modifier == ModifierKeys.None)
{
if (currentlyPressedModifiers.Count > 0)
{
if (currentlyPressedModifiers[0] != ModifierKeys.None)
{
return false;
}
}
}
}
if (checkForExactModifiers)
{
foreach (var currentlyPressedModifier in currentlyPressedModifiers)
{
if (!Enum<ModifierKeys>.Flags.IsFlagSet(modifier, currentlyPressedModifier))
{
// Pressed but not expected
return false;
}
}
}
foreach (var modifierToCheck in allModifiers)
{
if (Enum<ModifierKeys>.Flags.IsFlagSet(modifier, modifierToCheck))
{
// Key is expected, checking if it is pressed
if (!currentlyPressedModifiers.Contains(modifierToCheck))
{
return false;
}
}
}
return true;
}
/// <summary>
/// Determines whether the specified keyboard modifiers are currently pressed.
/// </summary>
/// <param name="modifier">One or more keyboard modifiers.</param>
/// <returns><c>true</c> if all the specified keyboard modifiers are being pressed; otherwise, <c>false</c>.</returns>
public static bool AreKeyboardModifiersPressed(ModifierKeys modifier)
{
var keys = Enum <ModifierKeys> .GetValues();
foreach (var key in keys)
{
if (Enum <ModifierKeys> .Flags.IsFlagSet(modifier, key))
{
#if NETFX_CORE
var coreWindow = CoreWindow.GetForCurrentThread();
switch (key)
{
case ModifierKeys.None:
break;
case ModifierKeys.Control:
if ((coreWindow.GetKeyState(VirtualKey.Control) == CoreVirtualKeyStates.None) &&
(coreWindow.GetKeyState(VirtualKey.LeftControl) == CoreVirtualKeyStates.None) &&
(coreWindow.GetKeyState(VirtualKey.RightControl) == CoreVirtualKeyStates.None))
{
return(false);
}
break;
case ModifierKeys.Menu:
if ((coreWindow.GetKeyState(VirtualKey.Menu) == CoreVirtualKeyStates.None) &&
(coreWindow.GetKeyState(VirtualKey.LeftMenu) == CoreVirtualKeyStates.None) &&
(coreWindow.GetKeyState(VirtualKey.RightMenu) == CoreVirtualKeyStates.None))
{
return(false);
}
break;
case ModifierKeys.Shift:
if ((coreWindow.GetKeyState(VirtualKey.Shift) == CoreVirtualKeyStates.None) &&
(coreWindow.GetKeyState(VirtualKey.LeftShift) == CoreVirtualKeyStates.None) &&
(coreWindow.GetKeyState(VirtualKey.RightShift) == CoreVirtualKeyStates.None))
{
return(false);
}
break;
case ModifierKeys.Windows:
if ((coreWindow.GetKeyState(VirtualKey.LeftWindows) == CoreVirtualKeyStates.None) &&
(coreWindow.GetKeyState(VirtualKey.RightWindows) == CoreVirtualKeyStates.None))
{
return(false);
}
break;
default:
throw new ArgumentOutOfRangeException();
}
#else
if (!Enum <ModifierKeys> .Flags.IsFlagSet(Keyboard.Modifiers, key))
{
return(false);
}
#endif
}
}
return(true);
}
/// <summary>
/// Determines whether the specified keyboard modifiers are currently pressed.
/// </summary>
/// <param name="modifier">One or more keyboard modifiers.</param>
/// <returns><c>true</c> if all the specified keyboard modifiers are being pressed; otherwise, <c>false</c>.</returns>
public static bool AreKeyboardModifiersPressed(ModifierKeys modifier)
{
var keys = Enum<ModifierKeys>.GetValues();
foreach (var key in keys)
{
if (Enum<ModifierKeys>.Flags.IsFlagSet(modifier, key))
{
#if NETFX_CORE
var coreWindow = CoreWindow.GetForCurrentThread();
switch (key)
{
case ModifierKeys.None:
break;
case ModifierKeys.Control:
if ((coreWindow.GetKeyState(VirtualKey.Control) == CoreVirtualKeyStates.None) &&
(coreWindow.GetKeyState(VirtualKey.LeftControl) == CoreVirtualKeyStates.None) &&
(coreWindow.GetKeyState(VirtualKey.RightControl) == CoreVirtualKeyStates.None))
{
return false;
}
break;
case ModifierKeys.Menu:
if ((coreWindow.GetKeyState(VirtualKey.Menu) == CoreVirtualKeyStates.None) &&
(coreWindow.GetKeyState(VirtualKey.LeftMenu) == CoreVirtualKeyStates.None) &&
(coreWindow.GetKeyState(VirtualKey.RightMenu) == CoreVirtualKeyStates.None))
{
return false;
}
break;
case ModifierKeys.Shift:
if ((coreWindow.GetKeyState(VirtualKey.Shift) == CoreVirtualKeyStates.None) &&
(coreWindow.GetKeyState(VirtualKey.LeftShift) == CoreVirtualKeyStates.None) &&
(coreWindow.GetKeyState(VirtualKey.RightShift) == CoreVirtualKeyStates.None))
{
return false;
}
break;
case ModifierKeys.Windows:
if ((coreWindow.GetKeyState(VirtualKey.LeftWindows) == CoreVirtualKeyStates.None) &&
(coreWindow.GetKeyState(VirtualKey.RightWindows) == CoreVirtualKeyStates.None))
{
return false;
}
break;
default:
throw new ArgumentOutOfRangeException();
}
#else
if (!Enum<ModifierKeys>.Flags.IsFlagSet(Keyboard.Modifiers, key))
{
return false;
}
#endif
}
}
return true;
}
