void SRGraphView::OnLButtonDown(UINT nFlags, CPoint point)
Handles left mouse button press
When the button is pressed, there may be a number of possible actions to take.
If the point is in a feedback area, then data dragging will commence.
If the point is elsewhere in the display, a selection area will be started.
Defined in: GraphVw.cpp
Parameters
nFlags
Mouse flags
point
Mouse location at which the button was pressed