DDgui Programmers Reference Guide by Nicholas J. Kingsley - HTML preview

Inserting and Deleting Text

List Boxes

With list boxes, there are two functions used to add and remove lines of text.  These are :

DDgui_insertitem%: id$, text$, before_index%

id$ is the ID of the list box, text$ is the text to be added, and before_index% is the position that you want to insert the text. 

If before_index%>=0 then the text will be inserted at that line position – don’t forget that line numbering starts at 0!

If before_index%<0 then the text will be appended to the end of the list

Removing lines from list boxes is done with :

DDgui_deleteitem%: id$, index%

id$ is the ID of the list box, and index% is the line that you want to delete.  If this value is < 0 then everything will be deleted.

Edit Boxes

With edit boxes, you would need to use DDgui_get to get the text from the edit box, split into lines, delete or append as appropriate and then put the new text back in using DDgui_set