Changing expert advisor settings (true/false) by clicking on the chart

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Hi,

what possibilities are given to active/deactive ea settings on the chart?

I found, that I can put buttons on the chart, now.

Is it also possible to "create" a clickbox or write ON / OFF on the chart and change the value by clicking on the string?

Are there examples for these functions?

 
see here, here and here also check \\include\controls\CheckBox.mqh
 
Thanks for your links!! Does this mean, that I can use every mt5-graphical object also with my mt4 account?
 

Now I am testing the button functions.


I have created my button and want to change the button text.

I am changing the text with: 

ObjectSetString(0,"Button_Testname",OBJPROP_TEXT,"Deinit");

If I read the Text I am getting the right value, but the button isn't changing the text on the chart. (Only if I put string ObjectSetString(0,"Button_Testname",OBJPROP_TEXT,"Deinit"); in the deinit function).

I tried also the command ChartRedraw() after my command-string, but it doesn't help :-(

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