19

单选题 19 /43

用户双击鼠标时产生的消息序列,下面正确的是()

参考答案

WM_LBUTTONDOWN,WM_LBUTTONUP,WM_LBUTTONDOWN,WM_LBUTTONUP
WM_LBUTTONDOWN,WM_LBUTTONUP,WM_LBUTTONUP,WM_LBUTTONDBLCLK
WM_LBUTTONDOWN,WM_LBUTTONUP,WM_LBUTTONDOWN,WM_LBUTTONDBLCLK
WM_LBUTTONDOWN,WM_LBUTTONUP,WM_LBUTTONDBLCLK,WM_LBUTTONUP