Running Qwt examples - No GUI displayed, though it is there in the taskmanager!



  • Hi
    I installed Qwt 6.1.2 with Qt 5.2.0.

    To get rid of the urge to search for the Qt dlls under cygwin, I added PATH to look at bin under Qt. I also changed the qwtconfig.pri with the following addition under win32:

    LIBS += -LC:/Qt/Qt5.2.0/5.2.0/mingw48_32/lib

    Compiled without an issue.

    But, Now, when I open any example (I tried CPUPLOT and EXAMPLES) and run it I get:
    Starting C:\qwt-6.1.2\examples\bin_debug\cpuplot.exe...

    in the Application output, but No corresponding GUI Is displayed!!!

    I have no idea what is happening.

    Thanks for any insight.

    This is a WIn XP machine and code I wrote without Qwt displays GUI without issues.



  • All may not be OK with my compile, I just realised there is no exe created in my debug folder.

    Where should it be?

    QCustomPlot works fine.


  • Lifetime Qt Champion

    Hi,

    Do you have any error message ?

    It should be created exactly where you see it after "Starting C:\etc."



  • no error messages at all! I had this happen once on a different machine - having 2 versions of mingw with code blocks ended up deleting the .exe whenever I ran any application developed via code blocks. Reinstalling everything and then running applications fixed it.



  • no error messages at all! I had this happen once on a different machine - having 2 versions of mingw with code blocks ended up deleting the .exe whenever I ran any application developed via code blocks. Reinstalling everything and then running applications fixed it.
    No energy to redo all that in this old xp :( I do have 2 versions of mingw on this machine, one installed via Qt, old one from code blocks.

    Sorry for the double post, 5 year old running circles around me literally. Other code - ones I wrote, QCustomplot all continue to work normally.


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