ObjectSet and ObjectSetText not recognised by MetaEditor context sensitivity and don't operate as expected

[strontiumDog]

Hello

Trying out code from https://www.mql5.com/en/forum/130611/3340415#comment_3340415 as I have plotted a series of HLINEs and want to change the font of the descriptions of each:

  

if(ObjectSetText(_lineName, "What you want to call your line", 8, "Arial", Magenta)) {
    afxHandleError(GetLastError(), __FUNCTION__+": ERROR ObjectSetText returned false with these (_lineName,_desc,_fontSize,font,_lineColor) of: |"+_lineName+"|"+_desc+"|"+_fontSize+"|"+font+"|"+_lineColor+"|");
} else {
    Print(__FUNCTION__+": [OK] ObjectSetText returned OK with these (_lineName,_desc,_fontSize,font,_lineColor) of: |"+_lineName+"|"+_desc+"|"+_fontSize+"|"+font+"|"+_lineColor+"|");
}

Does not work.  Nor does it if I change Magenta to clrMagenta.  The ObjectSetText reference was not highlighted in metaeditor when I tried checking internal list of functions nor did it offer me args when I hit the '(': not in the compiler version 1601 build?

GetLastError Error code comes back as 0 no error.  Weirdly, the text is updated, but stays grey, sized and font like the system color of the top-left of every chart.

Is this a bug, or something wrong with my system?

Thanks

[William Roeder]

You posted code says if the call succeeds (returns true) print an error message, otherwise print OK. That is why the error code comes back as zero.