home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Gigarom 1
/
Gigarom Macintosh Archives (Quantum Leap)(CDRM1080320)(1993).iso
/
FILES
/
HYP
/
H-I
/
HyperHackers.cpt
/
Hyper-Hackers Queue 1.0
/
card_11236.txt
< prev
next >
Wrap
Text File
|
1989-02-26
|
2KB
|
56 lines
-- card: 11236 from stack: in.0
-- bmap block id: 0
-- flags: 0000
-- background id: 3797
-- name:
-- part contents for background part 1
----- text -----
Date: Tue, 15 Dec 87 00:49 EST
From: <BELSLEY%BCVMS.BITNET@MITVMA.MIT.EDU> (DAVID A. BELSLEY)
Here are a few questions to keep the creative sorts chewing:
1. How can one get two field simultaneously to scroll in HyperCard. I
don't mean setting one field's scroll to that of another, because that
can only work in a staggered fashion. I mean for the two fields really
to scroll together.
2. How can one determine when a field has closed after it has been opened?
The closeField message is only sent if the text in the field has been changed.
This, however, makes it difficult to verify the field for a specific entry
type. Suppose, for example, the field should be a number. If a letter
slips in, this can be caught on the initial closeField, but, if the user
ignores your warning and makes no correction, you have no way of knowing
this since no closeField will be sent if the text isn't changed. I have
found ways around this, but they are all extremely awkward.
3. Is it possible to dim a button? Perhaps an XCMD could be written to
do this, but this would require some rather intimate knowledge of the
way hypercard keeps its control information. Is such information available,
both for buttons and for fields?
4. Related to the above, how does one address the controls and the fields
from an XCMD or XFCN? Where is the window edit record stored for each
field, for example? How does one get access to the appropriate handles
while the card is open? etc.?
I have been able to do a lot with HC in attempting to set up an environment
for guided computing in statistics, but a number of limitations such as those
indicated above are making its use problematic. I have by no means given
up hope. I am sure I have a great deal more to learn, and I am also sure
that HC will undergo substantial growth. But unless answers to such
questions become real, HC will not serve many subtle needs.
-- part contents for background part 45
----- text -----
A few HC questions
-- part contents for background part 41
----- text -----
What links to A few HC questions?