Apple PowerBook 520 Technical Information download pdf (Page 107)

CHAPTER 5

Software

Control Strip Module Reference 93

SBModalDialogInContext 5

You can use the SBModalDialogInContext in place of ModalDialog routine to keep

background applications from getting run while your modal dialog window is visible.

pascal void SBModalDialogInContext(ModalFilterProcPtr filterProc,

short *itemHit);

The SBModalDialogInContext routine is a special version of ModalDialog that

doesn’t allow background applications to get time while a modal dialog window is

visible. You should use SBModalDialogInContext when you don’t want any context

switching to occur.

Gestalt Selectors 5

The control strip software installs two Gestalt selectors to return information to the

outside world. One selector returns software attributes, and the other returns the

software version.

gestaltControlStripAttr 5

The selector gestaltControlStripAttr ('sdev') returns 32 bits describing the

software attributes of this version of the control strip. Currently only the following bit

is deﬁned:

gestaltControlStripExists 0 1=control strip is installed

gestaltControlStripVersion 5

The selector gestaltControlStripVersion ('sdvr') returns the version of control

strip software that is installed. The format of the returned version is the same as that of

the numeric part of a 'vers' resource, that is:

Bits 31-24 Major part of the version, in BCD

Bits 23-20 Minor part of the version, in BCD

Bits 19-16 Bug release version, in BCD

Bits 15- 8 Release stage:

$80=ﬁnal

$60=beta

$40=alpha

$20=development

Bits 7- 0 Revision level of nonreleased version, in binary

Thus, if the software version were 1.5.3b25, the gestaltControlStripVersion

selector would return $01536019.

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Apple PowerBook 520 Technical Information Page 107