Change the direction of a shape with a button

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I want to change the direction of movement of a shape (Circle) on a Form, using up,down,left,right, buttons placed within a panel also on the Form.

The form contains a shape(Circle) and a TTimer component.

I can get the Circle to move across the Form using :
Circle->Left = Circle->Left + 20; for the OnTimer event, but I now want to change the direction of the Circle using the buttons.

I know I will have to enter similar code in each of the ButtonClick events and I have the feeling that additional code will be required in the OnTimer event handler, but I can't work out what it is.

Please reply to my email with any help.

Regards,

Maineboy.

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Maineboy

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