TChart.OnZoom handler

TeeChart VCL for Borland/CodeGear/Embarcadero RAD Studio, Delphi and C++ Builder.
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TChart.OnZoom handler

Post by dmo9999 » Tue Apr 05, 2022 2:55 pm

I created a TChart.OnZoom handler.
The handler can be invoked via a Rectangle Drag action OR a MouseWheel forward/back action.
I would like to handle these two cases differently.

Is there a way to determine what action invoked the OnZoom event within the handler?

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Re: TChart.OnZoom handler

Post by Marc » Thu Apr 07, 2022 9:34 pm


You may be better advised to check the mouse move/up event to register how the action took place. You could set a variable that is then used when the OnZoom event triggers.

Marc Meumann
Steema Support

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