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May 30th, 2017, 07:34 AM
#4
Re: Implementing Alt+Tab functionality using WH_KEYBOARD_LL hook.
 Originally Posted by Askarali
I checked GetLastError() immediately after SetForegroundWindow() when it failed though I haven't provided this check here.
As mentioned in post #2, SetForegroundWindow() isn't documented as setting last error so GetLastError() probably isn't valid.
Also, there doesn't appear to be a check that WindowSwitcherUIHandle is valid before being used. It is set from FindWindow() but there's no check that FindWindow() is successful.
All advice is offered in good faith only. All my code is tested (unless stated explicitly otherwise) with the latest version of Microsoft Visual Studio (using the supported features of the latest standard) and is offered as examples only - not as production quality. I cannot offer advice regarding any other c/c++ compiler/IDE or incompatibilities with VS. You are ultimately responsible for the effects of your programs and the integrity of the machines they run on. Anything I post, code snippets, advice, etc is licensed as Public Domain https://creativecommons.org/publicdomain/zero/1.0/ and can be used without reference or acknowledgement. Also note that I only provide advice and guidance via the forums - and not via private messages!
C++23 Compiler: Microsoft VS2022 (17.6.5)
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