CyberSlug Posted January 20, 2005 Posted January 20, 2005 (edited) I've run into some potential problems with the way hotkeys preempt GUI code..... Example Psuedo-code which could/would crash on occasion with "Array variable subscript badly formatted." Error HotKeySet("{Delete}", "RemoveSelectedControl") ;... Dim $InfoAboutControls[4096] Global $HandleForCurrentControl ;... While 1 $msg = GuiGetMsg() ;.... ;---Code to process moving a control (drag-n-drop)--- If $HandleForCurrentControl > 0 Then;Make sure we have a valid control handle ; ***** oops user pressed Delete key and we get pre-empted ; ***** user removed the selected control. ; ***** Returning from the RemoveSelectedControl function and resuming here: GuiCtrlSetPos($InfoAboutControls[$HandleForCurrentControl], $newLeftPosition, $newTopPosition) EndIf WEnd Func RemoveSelectedControl() $HandleForCurrentControl = -1 EndFunc EDIT: fixed typos If we had some mechanism of denoting a critical section around the If-statement, the problem should be avoided. Edited January 20, 2005 by CyberSlug Use Mozilla | Take a look at My Disorganized AutoIt stuff | Very very old: AutoBuilder 11 Jan 2005 prototype I need to update my sig!
Administrators Jon Posted January 21, 2005 Administrators Posted January 21, 2005 I've run into some potential problems with the way hotkeys preempt GUI code.....Example Psuedo-code which could/would crash on occasion with "Array variable subscript badly formatted." ErrorHotKeySet("{Delete}", "RemoveSelectedControl") ;... Dim $InfoAboutControls[4096] Global $HandleForCurrentControl ;... While 1 $msg = GuiGetMsg() ;.... ;---Code to process moving a control (drag-n-drop)--- If $HandleForCurrentControl > 0 Then;Make sure we have a valid control handle ; ***** oops user pressed Delete key and we get pre-empted ; ***** user removed the selected control. ; ***** Returning from the RemoveSelectedControl function and resuming here: GuiCtrlSetPos($InfoAboutControls[$HandleForCurrentControl], $newLeftPosition, $newTopPosition) EndIf WEnd Func RemoveSelectedControl() $HandleForCurrentControl = -1 EndFuncEDIT: fixed typos If we had some mechanism of denoting a critical section around the If-statement, the problem should be avoided.Should be easy enough. Just a EnterCriticalSection() and LeaveCriticalSection() set of functions that disable adlib/hotkeys/onevents. Deployment Blog: https://www.autoitconsulting.com/site/blog/ SCCM SDK Programming: https://www.autoitconsulting.com/site/sccm-sdk/
CyberSlug Posted March 13, 2005 Author Posted March 13, 2005 * BUMP * due to the activity on 3.1.0++ Use Mozilla | Take a look at My Disorganized AutoIt stuff | Very very old: AutoBuilder 11 Jan 2005 prototype I need to update my sig!
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