The SDL Component Suite is an industry leading collection of components supporting scientific and engineering computing. Please visit the SDL Web site for more information....



OnSelectRect


Unit:SDL_rchart
Class:TContourPlot
Declaration: OnSelectRect: TSelectRectEvent;
{TSelectRectEvent = procedure (Sender: TObject; Layer: integer; LoX, LoY, HiX, HiY: double) of object;}

The event OnSelectRect is triggered when the property MouseAction is set to maSelectRect and the left mouse button is released. The parameters LoX, LoY, HiX, and HiY specify the coordinates of the lower left and upper right corner of the selection rectangle. The parameter Layer is always 1, because TContourPlot does not support multiple layers.



Last Update: 2016-Jun-26