MQL5 ReferenceWorking with Optimization ResultsFrameFirst FrameFirstFrameFilterFrameNextFrameInputsFrameAddParameterGetRangeParameterSetRange FrameFirst Moves a pointer of frame reading to the beginning and resets a set filter. bool FrameFirst(); Return Value Returns true if successful, otherwise false. To get information about the error, call the GetLastError() function. Working with Optimization Results FrameFilter