public PointerPointProperties(RawInputModifiers modifiers, PointerUpdateKind kind)
{
PointerUpdateKind = kind;
IsLeftButtonPressed = modifiers.HasFlagCustom(RawInputModifiers.LeftMouseButton);
IsMiddleButtonPressed = modifiers.HasFlagCustom(RawInputModifiers.MiddleMouseButton);
IsRightButtonPressed = modifiers.HasFlagCustom(RawInputModifiers.RightMouseButton);
// The underlying input source might be reporting the previous state,
// so make sure that we reflect the current state
if (kind == PointerUpdateKind.LeftButtonPressed)
{
IsLeftButtonPressed = true;
}
if (kind == PointerUpdateKind.LeftButtonReleased)
{
IsLeftButtonPressed = false;
}
if (kind == PointerUpdateKind.MiddleButtonPressed)
{
IsMiddleButtonPressed = true;
}
if (kind == PointerUpdateKind.MiddleButtonReleased)
{
IsMiddleButtonPressed = false;
}
if (kind == PointerUpdateKind.RightButtonPressed)
{
IsRightButtonPressed = true;
}
if (kind == PointerUpdateKind.RightButtonReleased)
{
IsRightButtonPressed = false;
}
}
private DragDropEffects GetPreferredEffect(DragDropEffects effect, RawInputModifiers modifiers)
{
if (effect == DragDropEffects.Copy || effect == DragDropEffects.Move || effect == DragDropEffects.Link || effect == DragDropEffects.None)
{
return(effect); // No need to check for the modifiers.
}
if (effect.HasFlagCustom(DragDropEffects.Link) && modifiers.HasFlagCustom(RawInputModifiers.Alt))
{
return(DragDropEffects.Link);
}
if (effect.HasFlagCustom(DragDropEffects.Copy) && modifiers.HasFlagCustom(RawInputModifiers.Control))
{
return(DragDropEffects.Copy);
}
return(DragDropEffects.Move);
}
