C# 클래스 Smrf.GraphicsLib.ToolTipTrackerBase

To use ToolTipTracker, call OnMouseMoveOverObject from the control's MouseMove event handler. If the mouse is currently over an object that has a tooltip associated with it, pass the object as the method's oObjectToTrack parameter. Otherwise, pass null. Also, call OnMouseMoveOverObject with a null parameter from the control's MouseLeave event handler.

If the mouse remains over an object for a period of milliseconds, ToolTipTracker fires a event. The event arguments include the object being tracked.

A HideToolTip event is fired when the tooltip should be hidden. This occurs HideDelayMs after the event fires if the mouse remains over the object, or immediately if OnMouseMoveOverObject(null) is called.

Note that ToolTipTracker does not actually show or hide the tooltip; that's up to the application. The easiest way to do this is to create a child ToolTipPanel control and call its Show and Hide methods in response to the ShowToolTip and HideToolTip events.

If the mouse is moved to another object within ReshowDelayMs milliseconds, another ShowToolTip event is fired. Otherwise, the waiting period reverts to ShowDelayMs.

Call Reset to reset ToolTipTracker to its initial state. This forces a HideToolTip event if a tooltip is showing.

IMPORTANT

The control must call Dispose() from its own Dispose method. This prevents timer-based events from firing after the control no longer has a handle.