Globally Trap Escape Key
in [Visual Basic]
|
From: David on 29 Mar 2010 22:34 Mr. Petersons "Key Preview" reminder resolved things easily. Mr. Toews and MikeD. Out of curiousity and future need, is there anyway to code for the "Esc" key in the command_click event? If you can trap it in command_click, would definitely reduce need for multiple command buttons. David "MikeD" <nobody(a)nowhere.edu> wrote in message news:%23jruDc6zKHA.5548(a)TK2MSFTNGP06.phx.gbl... > > > "David" <NoWhere(a)earthlink.net> wrote in message > news:OdAtbL4zKHA.4656(a)TK2MSFTNGP05.phx.gbl... >> I have a form with several controls. >> >> Rather than writing code for each keypress or a single >> procedure call by every controls keypress event, >> what is the best way to globally trap the escape key? > > > I'd go with Tony's suggestion (set a command button's Cancel property to > True). There are circumstances, however, where it may not suit your > purposes. You'll just need to test for those. Make this an EXTRA command > button on the form unless you've already got a button that should run this > code whenever the Escape key is pressed. Either at run-time (before the > form is shown) or design-time (I'd recommend run-time), move it way off > the form by setting its Left or Top property to something like -10000. > You can't make it invisible; otherwise, its Click event won't fire when > the Escape key is pressed. > > -- > Mike > > P.S. If it wasn't clear, write the code you want executed when the Cancel > key is pressed in that command button's Click event. You can even run it > programmatically by setting that command button's Value property to True > (the programmatic way of "clicking" a command button). > >
From: Tony Toews [MVP] on 29 Mar 2010 23:24 "David" <NoWhere(a)earthlink.net> wrote: >Mr. Toews and MikeD. > >Out of curiousity and future need, is there anyway to code for the "Esc" key >in the command_click event? > If you can trap it in command_click, would definitely reduce need for >multiple command buttons. Not sure so I'll let someone else answer that one. I'm an Access expert so I only answer VB6 questions about which I'm really sure. Especially after I answered one question with my experience from Access which turned out to be totally wrong in VB6. <wry smile> Tony -- Tony Toews, Microsoft Access MVP Tony's Main MS Access pages - http://www.granite.ab.ca/accsmstr.htm Tony's Microsoft Access Blog - http://msmvps.com/blogs/access/ For a convenient utility to keep your users FEs and other files updated see http://www.autofeupdater.com/ Granite Fleet Manager http://www.granitefleet.com/
From: Eduardo on 30 Mar 2010 01:42 David escribi�: > No one suggested a keyboard hook? There is no need.
From: ralph on 30 Mar 2010 02:02 On Mon, 29 Mar 2010 22:34:02 -0400, "David" <NoWhere(a)earthlink.net> wrote: >Mr. Petersons "Key Preview" reminder resolved things easily. > >Mr. Toews and MikeD. > >Out of curiousity and future need, is there anyway to code for the "Esc" key >in the command_click event? > If you can trap it in command_click, would definitely reduce need for >multiple command buttons. > >David > Well you can't necessary trap the 'Escape' key but you can test to see if you want to close the form - when the [x] is clicked.... Sub Form_QueryUnload (Cancel As Integer, UnloadMode As Integer) On Error Resume Next 'UnloadMode possibilities: '0 The user has chosen the Close command from the Control-menu box on the form. '1 The Unload method has been invoked from code. '2 The current Windows-environment session is ending. '3 The Microsoft Windows Task Manager is closing the application. '4 An MDI child form is closing because the MDI form is closing. If UnloadMode <> 1 Then Cancel = True ' free to continue with program End If End Sub You can abuse that to keep from "unloading". -ralph
From: Helmut Meukel on 30 Mar 2010 05:23
David, setting a command buttons Cancel property to True generates automatically a click for this command button whenever the user presses the Escape key. So the code in the command buttons click event just has to handle whatever should be done when the user presses Escape. I you name the command button "Cancel" and make it visible to the user he can either click on the command button or press Escape. If you don't want this Cancel button visible, move it out of sight by setting either Top or Left to a suffient high negative value. Its Visible property must stay True, but you should remove it from the Tab order by setting its TabStop property to False. Another approach would be - as Karl suggested - to use the forms KeyPreview property. Look it up in Online Help. Helmut. "David" <NoWhere(a)earthlink.net> schrieb im Newsbeitrag news:eOBR1F7zKHA.6140(a)TK2MSFTNGP05.phx.gbl... > Mr. Petersons "Key Preview" reminder resolved things easily. > > Mr. Toews and MikeD. > > Out of curiousity and future need, is there anyway to code for the "Esc" key > in the command_click event? > If you can trap it in command_click, would definitely reduce need for > multiple command buttons. > > David |