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mql5-skills/skills/mql5/references/docs/34-standardlibrary/2485-standardlibrary-canvasgraphics-cchartcanvas-cchartcanvasdescriptorupdate.md
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DescriptorUpdate

Updates the value of the series descriptor (at the specified position).

 bool  DescriptorUpdate(
   const uint    pos,    // index
   const string  descr,  // value
   )

Parameters

pos

[in] Index of the series — the serial number of its addition, starting with 0.

descr

[in] Descriptor value.

Return Value

true if successful, otherwise — false.