How to make a rectangle in a XY graph & this rectangle can be Drag and Zomm by Mouse

I have a curve display in a XY graph, that is simple.
But
My customer want one or tree rectangle display in this graph also, these rectangle can be drag, Zoom, such as below pic,
the problem is how to use mouse control these Rect, Drag to move, Drag corner to Zoom. thanks a lot

Hi,
First learn how to plot your rectangles (several segments).
Then use a structure event with XYGraph => mouse down to check when user begin the drag
Use the same structure event with XYGraph => mouse move to update your graph during movement.
Best Regards
V-F

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How to make a rectangle in a XY graph & this rectangle can be Drag and Zomm by Mouse

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