I looked at the QWinTaskbarButton source code (QWinTaskbarProgress is just a convenience class that delegates all interaction with the OS to QWinTaskbarButton) and didn't find anything suspicious, the only "importable" function it uses is definitely available in XP.
So my guess is that the incompatibility is caused by another part of QtWinExtras, not taskbar button/progress. On 02/05/2014 02:02 PM, Miroslav Špehar wrote: > Thanks for the answer, but it might help if i paraphrased the question: > will creation of taskbar progressbar object on a binary used for windows > xp cause a problem? > According to Nurmi's answer - it shouldn't, because of expressed > optionality in the docu (quote: "In addition, you *can *use..."). > > The idea is to build an app which will show taskbar progressbar on > windows 7+, but not show it (because it doesn't exist) on windows xp. > The same .exe should be used on both operating systems. > As I'm seeing it - it doesn't work this way even though documentation > suggest it should (since the app i'm testing it on doesn't work on > winxp, but works on win7), so I'm looking for some confirmation/suggestions. > > Maybe a hint of some opensource application that uses it so i could > examine its code? > > Regards, Miroslav. > > > > On Mon, Feb 3, 2014 at 9:11 AM, Sze Howe Koh <szehowe....@gmail.com > <mailto:szehowe....@gmail.com>> wrote: > > Hi, > > On 30 January 2014 22:50, Miroslav Špehar <mspe...@gmail.com > <mailto:mspe...@gmail.com>> wrote: > > Thanks, for the answer, i am already aware of this example. > > There is even somewhere in documentation mentioned that filetype > association > > is needed so 'recent' jump list would be shown. Is there some kind of > > prerequisite for 'tasks' jump list? > > I don't know the answer to this one, but... > > > Also, an application compiled with bundled minigw and ran on windows xp > > shows error(s) when winextras are used (taskbar progress). The error is > some > > dll entry point not found. Is it not supported on win xp? > > It runs fine on windows 7 though. > > ...Taskbar progress bars are a new feature in Windows 7: > > http://msdn.microsoft.com/en-us/library/windows/desktop/dd378460(v=vs.85).aspx > > <http://msdn.microsoft.com/en-us/library/windows/desktop/dd378460%28v=vs.85%29.aspx>. > They did not exist in XP and Vista. > > > Regards, > Sze-Howe > > > > > -- > How much wood could a woodchuck chuck if a woodchuck could chuck wood?
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