Creating the resources for ShowDialog XCMD Type 1:
The requirements for creating DLOG templates for Type 1 of ShowDialog XCMD with ResEdit are:
For "standard" dialogs and alerts the procID should be 1 (this describes how the dialog will "look"), the visible and goAwayFlag boxes must be unchecked, and the DLOG and associated DITL resources should be made purgeable.
If you are going to have a default button, it MUST be DITL item #1. This is because the first item in the item list is always assumed to be the default button. The Macintosh Toolbox will interpret a press of the Return or Enter key as equivalent to a mouse click in the default button.
In your DITL template your field (of type Static Text) that will contain the prompt string must contain the placeholder "^0" (don't use the quotes; and that's a zero). Your text will be substituted here.
All items in the item list EXCEPT the buttons must be DISABLED.