I'm trying to capture when a user presses a particular key (escape), so
I'm coding in the KeyPress event. Yet the code seems be bypassed
(breakpoint is never encountered). Should I be coding in a different
event? Is this a known issue? FYI, this is happening in both Access 97
and 2000.
8  37109 
On Tue, 09 Sep 2003 17:20:52 GMT, William Ortenberg wrote: I'm trying to capture when a user presses a particular key (escape), so
I'm coding in the KeyPress event. Yet the code seems be bypassed
(breakpoint is never encountered). Should I be coding in a different
event? Is this a known issue? FYI, this is happening in both Access 97
and 2000.
You have to set "KeyPreview " = true.
Also, you should know about the difference between KeyDown, KeyUp and
KeyPress. See OH.
HTH - Peter
--
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This posting is provided AS IS with no warranties, and confers no rights.
William Ortenberg <bi*****@pacbel l.net> wrote in message news:<UZ******* *******@newssvr 29.news.prodigy .com>... I'm trying to capture when a user presses a particular key (escape), so
I'm coding in the KeyPress event. Yet the code seems be bypassed
(breakpoint is never encountered). Should I be coding in a different
event? Is this a known issue? FYI, this is happening in both Access 97
and 2000.
William,
The keypress-event does only respond to ANSI-characters and not to
non-text keys like escape, enter, cursor-keys, Home PgDn etc. The
effect of the shift-keys result in another character if valid. The
keyUp end KeyDown events however do respond to the escape-key and give
back a numeric value for each physical key with some exeptions and
conditions depending on the form-properties (see url http://msdn.microsoft.com/library/de...acevtKeyUp.asp
etc)
Other than fhe keypress-event they also return the state of the shift,
control and alt-key states seperately.
see also the useful article http://users.bigpond.net.au/abrowne1/ser-34.html
Marc
> The keypress-event does only respond to ANSI-characters and not to non-text keys like escape, enter, cursor-keys, Home PgDn etc. ...
Try this:
Key Preview=Yes
Private Sub Form_KeyPress(K eyAscii As Integer)
If KeyAscii = vbKeyEscape Then
MsgBox "ESC pressed."
End If
End Sub
Peter
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This posting is provided AS IS with no warranties, and confers no rights.
This is not correct. You should use the KeyDown event for this, not
KeyPress.
--
MichKa [MS]
This posting is provided "AS IS" with
no warranties, and confers no rights.
"Peter Doering" <ne**@doering.o rg> wrote in message
news:bj******** ****@ID-204768.news.uni-berlin.de... The keypress-event does only respond to ANSI-characters and not to
non-text keys like escape, enter, cursor-keys, Home PgDn etc. ...
Try this:
Key Preview=Yes
Private Sub Form_KeyPress(K eyAscii As Integer)
If KeyAscii = vbKeyEscape Then
MsgBox "ESC pressed."
End If
End Sub
Peter
--
No mails please.
This posting is provided AS IS with no warranties, and confers no rights.
> This is not correct. You should use the KeyDown event for this, not KeyPress.
I know!
The statement was that KeyPress won't respond to ESC, but it does. I've
tested it.
Peter
The point is that it is foolish to rely on it, since apps will often trap
and remove the keystroke before it ever makes it to a WM_CHAR message (the
basis of the KeyPress event). Reliable code is always better....
--
MichKa [MS]
This posting is provided "AS IS" with
no warranties, and confers no rights.
"Peter Doering" <ne**@doering.o rg> wrote in message
news:bj******** ****@ID-204768.news.uni-berlin.de... This is not correct. You should use the KeyDown event for this, not
KeyPress.
I know!
The statement was that KeyPress won't respond to ESC, but it does. I've
tested it.
Peter
> The point is that it is foolish to rely on it, since apps will often trap and remove the keystroke before it ever makes it to a WM_CHAR message (the
basis of the KeyPress event). Reliable code is always better....
Thanks. For common people who rely on OH this is not really obvious. Is
there a place where one can read about it?
When would you use KeyPress or KeyUp?
Peter
--
No mails please.
KeyDown and KeyUp are responding to WM_KEYDOWN and WM_KEYUP messages, and
KepPress resonds to a WM_CHAR message. The first to respond to physical
keystroke push/release, while the latter responds to when a message loop
asks Windows to translate that keystroke to a character.
--
MichKa [MS]
This posting is provided "AS IS" with
no warranties, and confers no rights.
"Peter Doering" <ne**@doering.o rg> wrote in message
news:bj******** ****@ID-204768.news.uni-berlin.de... The point is that it is foolish to rely on it, since apps will often
trap and remove the keystroke before it ever makes it to a WM_CHAR message
(the basis of the KeyPress event). Reliable code is always better....
Thanks. For common people who rely on OH this is not really obvious. Is
there a place where one can read about it?
When would you use KeyPress or KeyUp?
Peter
--
No mails please.
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