The parameter needed for opening a picture of
the window class
the file which should be displayed.
Pressing the button with the three dots opens the Windows file selection dialog.
If the option read-only is activated, the text cannot be edited in the Runtime.
The file name can be selected with a mouse click on the file selection. The file to be displayed in the picture has to be added in the Project Manager under Files / Lists and then can be selected in the dialog 'File selection'. For a better overview different file types can be given to the files when adding them, the dialog then allows filtering on the types.