/// <summary>
/// Test for modifier keys
/// </summary>
/// <returns></returns>
private bool IsModifierKeyDown()
{
if (this.Modifiers == ModifierKeys.None)
{
return(true);
}
bool good = true;
if ((this.Modifiers & ModifierKeys.Windows) == ModifierKeys.Windows)
{
if (_targetElement.GetKeyState(VirtualKey.LeftWindows) != CoreVirtualKeyStates.Down &&
_targetElement.GetKeyState(VirtualKey.RightWindows) != CoreVirtualKeyStates.Down)
{
good = false;
}
}
if ((this.Modifiers & ModifierKeys.Shift) == ModifierKeys.Shift)
{
if (_targetElement.GetKeyState(VirtualKey.LeftShift) != CoreVirtualKeyStates.Down &&
_targetElement.GetKeyState(VirtualKey.RightShift) != CoreVirtualKeyStates.Down)
{
good = false;
}
}
if ((this.Modifiers & ModifierKeys.Control) == ModifierKeys.Control)
{
if (_targetElement.GetKeyState(VirtualKey.Control) != CoreVirtualKeyStates.Down)
{
good = false;
}
}
if ((this.Modifiers & ModifierKeys.Menu) == ModifierKeys.Menu)
{
if (_targetElement.GetKeyState(VirtualKey.Menu) != CoreVirtualKeyStates.Down)
{
good = false;
}
}
return(good);
}
