Are you talking about 3 files inside zip archive below this page?
https://www.mql5.com/en/articles/322
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- unzip this file custom_graphic_controls_3_en.zip
- open MT5; in MT5: Files - Open Data Folder ... and find MQL5/Include directory and MQL5/Experts directory
- place those files according to the following:
- IncGUI_v3.mqh - an include file containing all the classes to create a graphical interface. The file should be placed in MQL5/Include directory of the Terminal Data Directory.
- eIncGUI_v3_Test_Form.mq5 - an example of working with forms. The file should be placed in MQL5/Experts directory of the Terminal Data Directory.
- IncGUIv3mqh.chm - documentation to IncGUI_v3.mqh file.
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Thus, you should place two files to the following directories:
- IncGUI_v3.mqh - to MQL5/Include; do not compile this file in MetaEditor, and
- eIncGUI_v3_Test_Form.mq5 - to MQL5/Experts; it is expert advisor (it is EA, not a script), you may compile it in MetaEditor

- 2011.12.20
- Dmitry Fedoseev
- www.mql5.com
Hello to everybody;
I am new in MQL5, even if I have a good experience as computer programmer and engineer....
I have downloaded the script below this page (https://www.mql5.com/en/articles/322) and compiled it just for a test.... I have noticed that the result is a .ex5 file, but when I click on it, the MetaTrader window opens but nothing else happens.
I really have any idea to run this example and see the result.
Pls. help me.