/// <summary>
/// 开始鼠标捕捉
/// </summary>
/// <param name="element"></param>
/// <param name="mouseMoveHandler"></param>
/// <param name="mouseUpHandler"></param>
public static void StartCapture(this FrameworkElement element, MouseEventHandler mouseMoveHandler,
MouseButtonEventHandler mouseUpHandler)
{
element.MouseMove += mouseMoveHandler;
element.MouseUp += mouseUpHandler;
element.CaptureMouse();
}
internal static bool TryCaptureMouse(this UIElement element)
{
if (Mouse.Captured != null)
{
return Mouse.Captured == element;
}
if (Mouse.LeftButton != MouseButtonState.Pressed && Mouse.RightButton != MouseButtonState.Pressed)
{
return false;
}
return element.CaptureMouse();
}
