CouldAlert

Make an alert and related resources un purgeable

#include <Dialogs.h> Dialog Manager

void CouldAlert( alertID );

short alertID ; resource ID of an alert (type 'ALRT')

CouldAlert is needed when you expect that a disk containing alert resources

may be removed. It reads 'ALRT', 'DITL', 'WDEF', 'PICT', 'CNTL', 'actb', 'ictb'

and related resources into memory if they are not already there and tags them

as un purgeable.

CouldAlert is not supported under System 7. You can call it but no

operation will be performed.

alertID is the resource ID of the 'ALRT' resource which you want held in

memory.

Notes: CouldAlert is a quick way to insure that an alert and all its related

resources will not be purged. The alternative is a series of a (possibly)

large number of SetResAttrs calls, walking around an extended tree of

resources.

Exception: If the alert uses a font other than the system font (see

SetDAFont), that font might get purged anyway. It also does not load or

make unpurgeable the 'FONT' or 'FOND' resources of the color item list. You

may wish to lock them via SetFontLock.

Use FreeAlert to undo the effect of this call.

Referenced by (9):