DDT question about control IDs

[Andy Upton]

Does the ID for a control have to be unique in the dialog, or in the program?

ie I would like to have similar 2 dialogs use the same group of control IDs, so I can use the same functions, and just pass and use the different dialog handle.

Alternative ideas are to use a single dialog and dynamically add / remove the controls that vary between them; or set up the ID equates so that I can refer to them by number and add pass a parameter to add an offset to the ID numbers depending which dialog the function was called from.

As always, many thanks in advance.

[Paul Squires]

Unique to the dialog.

You can have the same control IDs as long as they are used on different dialogs.

[Chris Holbrook]

I would like to have similar 2 dialogs use the same group of control IDs, so I can use the same functions, and just pass and use the different dialog handle.

No problem. I use that approach and have tested with 100 dialogs and a single callback routine shared by them all.