Hi David,
This is for the key down and key up process. Note that you want the key up
process if you want to capture info, for key down has little to offer, but you
could do the silence there if you want, but queue it so events are happy...
Bruce
'Global Vars:
Dim TV_KeyDown, TV_MouseDown, TV_Changing
TV_KeyDown = False: TV_MouseDown = False: TV_Changing = False
'Inside dialog function:
If dEvent = treeviewKeyDown Then
'standard keys.
TV_KeyDown = True
myTV_KeyConnection = ConnectEvent( Keyboard, "OnKeyProcessedUp",
"OnKeyProcessedUp")
End If
If dEvent = treeviewClicked Then
'Mouse buttons.
TV_MouseDown = True
myTV_MouseConnection = ConnectEvent( Mouse, "OnButtonUp", "OnButtonUp")
End If
'Procedure Calls From Above:
Sub OnKeyProcessedUp( ky, md)
'Passing in key and multi keys.
Disconnect myTV_KeyConnection
myTV_KeyConnection = 0
If TV_KeyDown and ky = vk_Space and md = 0 Then
Silence
Queue "LaunchAnyProcedure"
End If
TV_KeyDown = False
End Sub
Sub OnButtonUp( button)
'Passing in the button number.
Disconnect myTV_MouseConnection
myTV_MouseConnection = 0
If TV_MouseDown and button = 0 Then
Queue "LaunchAnyProcedure"
End If
TV_MouseDown = False
End Sub
Sent: Saturday, March 28, 2015 9:29 AM
Subject: Acting on certain keystrokes
For the illustrative purpose, let's say I need my app to act upon
certain keystrokes, for instance silencing speech output whenever the
defined keys are being pressed. Could anyone with experience, please,
point me in some direction, or even provide a few lines of sample coding?
I have been reading a bit in the Reference manual, but am afraid it did
not make too much sense to me, for whatever reason. Pretty sure, first I
get the grasp of it, this might be a somehow trivial matter of coding,
but that is just not kicking in today. Smiles.
OK, so let's say, I want to silence the speech, with the SILENCE
command. This should be done, whenever the user hits the CTRL-key, or
the Down-Arrow key. No other keystrokes. Well, remember this is the
definitions for illustrative purposes, so the end app might have more
sofisticated sets of keys, but I just wanted some samples to show the
difference in operating with different kinds of keystrokes.
OK, I do know of the Silence command, and my guess is, that I somehow
need to hook onto the KeyUp or KeyDown events. Or, is there any other
events or commands needed for this kind of process. In case this is what
I need, which of the two aforementioned events should I preferably be
hooking onto, and what might be some of the pitfalls to look out for and
error causioning? Also, what would be the more exact command line to
hook onto the event. Can I for instance send one command, holding a set
of specific keys, (like the Ctrl-key on its own, or, alternatively the
Down-Arrow key on its own), or will I have to deal with this in two
separate command lines? And, Is it at all possible to hook on to a
modifier keystroke on its own, like the ctrl without any other keys
pressed - or, will the interface only accept a fully qualified keystroke
like Ctrl-A?
Any ideas, feedback and experiences in this landscape, will be greatly
appreciated. Thanks,
--
David
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