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-
- About Default 2.1
- ©1990 Lim Unlimited — All Rights Reserved
-
- The Default CDEF is a simple aid for Macintosh programmers that draws
- default button outlines for any size buttons, in the proper color, in your
- application and in ResEdit dialog and alert templates. Push buttons, check
- boxes, and radio buttons can also be drawn using the window’s font.
-
- ___Instructions___
-
- Default is a control definition function that you can copy and paste into
- your application. The Default CDEF enhances the System file’s standard
- control definition 0. If the last character of a button’s title is an ‘@’
- (an at or an each symbol), the button is drawn with an outline indicating
- that it is the default button. The trailing ‘@’ is not drawn with the
- title.
-
- If the button is inactive, the outline is grayed out. When Color QuickDraw
- is available, outlines are drawn in the same color as the button’s frame.
- If the Default CDEF is in the same file as your application’s DITL
- resources, ResEdit will display default button outlines drawn by Default.
- You do not need to write any code to use Default.
-
- A dialog’s default button can be changed at any time in your application
- simply by changing the appropriate button titles. However, you, the
- programmer, are responsible for making sure there is only one default
- button. If you are not using a filterProc, Default makes sure that pressing
- the Return key or Enter key is the same as clicking in the default button.
- The default button is also highlighted when the Return key or Enter key is
- pressed. If you are using your own filterProc, you must perform these
- tasks.
-
- If the last character of a control’s title is an ‘ƒ’, the control is drawn
- using the window’s current font. Push buttons, check boxes, and radio
- buttons will look the same as if you used a CNTL resource with the useWFont
- variation code. This feature is especially useful for CDEVs. If you need a
- default button that uses the window’s font, end the button’s title with
- ‘ƒ@’.
-
- ___Compatibility___
-
- Default should work on any model of Macintosh with any System version.
- Default is 32-bit clean. Except for drawing the outline, Default lets the
- System file’s CDEF 0 do practically everything. Thus, Default’s buttons do
- anything that normal buttons do.
-
- Be warned that Default uses the contrlData field of a ControlRecord (which
- is okay since it is reserved for CDEFs). If your application does something
- strange with this field, Default will not work.
-
- When you drag or resize a default button in ResEdit, you may notice some
- slight flickering. This occurs because ResEdit does not know about the
- outline so Default forces ResEdit to refresh portions of the window.
- Default only behaves this way in ResEdit. This does not occur in normal
- applications. Default now comes in versions with and without the ResEdit
- updating code. This may be helpful if you are concerned about your
- application’s size.
-
- ___Bugs___
-
- The outline will not update if the outline needs updating and the button
- does not, and UpdtControl or UpdtDialog is being used to update the
- controls. This problem does not occur with normal modal dialogs and occurs
- rarely with modeless dialogs. Unfortunately, there doesn’t seem to be a
- clean solution this problem. If you have this problem, you can call
- Draw1Control for the default button on every update event or simply use
- DrawControls or DrawDialog instead.
-
- If you have a default button and you aren’t using a filterProc, pressing
- the Return key or Enter key will click in the default button even if the
- button is hidden. This is a bug in the Dialog Manager. If you have this
- problem, you must change the default button to a normal button before you
- call HideDItem or HideControl.
-
- Please report any other bugs to any of the addresses listed below. Thanks
- to those programmers who did unusual things with their buttons, reported
- bugs, and helped make Default more robust.
-
- ___History___
-
- 1.0 — first release version
- 1.1 — fixed bug with HideControl and default buttons
- 1.2 — updated to support new 32-bit clean CDEF messages
- 1.3 — fixed bug with DragControl
- 1.4 — fixed bug converting between default buttons and normal buttons;
- improved outlines for unusually sized default buttons
- 1.5 — forced ResEdit to refresh default buttons correctly
- 2.0 — added automatic Return and Enter support for default buttons; added
- window font feature for push buttons, check boxes, and radio buttons;
- restructured code to reduce size of CDEF
- 2.1 — updated to follow Apple’s new way of drawing default outlines
-
- ___Distribution___
-
- Default is copyrighted but it is also available free of charge. You may
- copy and redistribute Default provided that this documentation accompanies
- any redistributed copies of Default and the Default CDEF is not modified in
- any way.
-
- You may include Default in any commercial or non-commercial software that
- you distribute provided that the Default CDEF is not modified in any way
- and that Lim Unlimited is given a free, fully functional, and fully
- supported copy of your software. You are not required to include a
- copyright notice for Default in your software.
-
- The source code to Default is now available on request. You can get a copy
- via electronic mail or by sending a stamped self-addressed envelope and a
- disk via postal mail. The source code may not be redistributed without the
- permission of Lim Unlimited. You may not distribute modified versions of
- the source code or any software derived from the source code.
-
- Lim Unlimited
- Postal: 330 W. Iris, Stockton, CA 95210, U.S.A.
- Internet: lim@iris.ucdavis.edu
- America Online: LimUnltd
- CompuServe: 72647,660
-