The button number that was pressed when the mouse event was fired.

当鼠标事件触发的时候，鼠标哪个按钮被按下。

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Handle to the window that will receive the mouse message corresponding to the mouse event.

希望对鼠标事件做出响应、接收鼠标消息的窗体的句柄。

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For example, you can replace mouse event handlers without affecting menu event handlers or keyboard event handlers.

例如，您可以在不影响功能表事件处理常式或键盘事件处理常式的情况下，取代滑鼠事件处理常式。

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In any event, the presence of mouse DNA in these cells must be considered as the source of contamination reported in this experiment.

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By the time I awoke the next day, shook off the collywobbles and registered my mouse clicks, only a dog's breakfast of event choices were left.

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In any event, other trends suggest that for every Timmy Willie, there is a Johnny Town-Mouse: many people like urban life and want to go on living in a city, particularly the centre.

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