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Chapter 8: Integrating a Flash Application
TI
-
89 / TI
-
92 Plus Developer Guide
Not for Distribution
Beta Version January 26, 2001
8.7. VAR-LINK
The VAR-LINK screen can be activated by pressing the
°
key or directly
by using the
handleVarLinkKey
routine (
Appendix A
). By default, VAR-LINK is
disabled within a dialog box. It can be enabled by using the
XF_ALLOW_VARLINK flag. See section
11.4 Dialog Boxes
for further details.
VAR-LINK can also view files (3rd party data types) generated by an app. An app
must have an OO_APP_VIEWER entry in its frame to specify a routine to view
files (see chapter
7. Flash Application Layout
for a description of FRAME
attributes). The prototype for the app viewer is as follows:
BOOL
LocAppViewer
(AppID
appID
, BYTE *
type
, WINDOW *
vlWin
,
HSYM
hSym
)
appID
— The app’s ID.
type
— A pointer to a one to four character string containing the file type of the file
to be displayed.
vlWin
— Pointer to a WINDOW structure that the app can draw to display the
contents of the file.
hSym
— The HSYM of the file to display.
If the app handles the specific view request it must return TRUE, if not it should
return FALSE and the next app in the list of apps will be given a chance to view
the file. See the
FOpen
routine for an example app viewer.
In terms of sample code see the
VarCreateFolderPopup
routine for the source
to VAR-LINK’s F2 (view) key.
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