Results 1 to 2 of 2

Thread: Qwt Missing Classes

  1. #1
    Join Date
    Oct 2016
    Posts
    5
    Qt products
    Qt5
    Platforms
    Unix/X11

    Default Qwt Missing Classes

    Hi,

    I am using qwt-6.1.3 with Qt5. However, I am encountering strange issues regarding linking the library with Qtcreator. I have placed the INCLUDE and LIBS in the .pro file and I am able to create a simple line graph, but some elements of the library are missing. For example, I cannot use the setSamples method from QwtPlotCurve as it doesn't exist as an option, so I have t use setData instead. Also, some classes are missing such as QwtDate and it's variants, like scale engine/draw.

    Could anyone explain why this might be happening? It seems strange that most of the functionality is available but others are not. If it helps I am developing on a linux platform.

    Thanks.

  2. #2
    Join Date
    Feb 2006
    Location
    Munich, Germany
    Posts
    3,309
    Thanked 879 Times in 827 Posts
    Qt products
    Qt3 Qt4 Qt/Embedded
    Platforms
    MacOS X Unix/X11 Windows

    Default Re: Qwt Missing Classes

    Try "nm <library> | c++filt | grep ..." to check what is inside your Qwt library. If you find the missing symbols there check if there is a second ( old ) version on your system - maybe from the distro - you access by accident.

    Uwe

Similar Threads

  1. How to access Classes from another Classes
    By revellix in forum General Programming
    Replies: 1
    Last Post: 4th August 2011, 16:39
  2. Assistant qch missing in SDK
    By mcosta in forum Qt Tools
    Replies: 1
    Last Post: 16th July 2011, 14:38
  3. DLL missing problem
    By greatfog in forum Newbie
    Replies: 2
    Last Post: 19th January 2011, 07:18
  4. construction of classes within classes
    By mobucl in forum Newbie
    Replies: 8
    Last Post: 10th January 2011, 14:51
  5. help section missing
    By sattu in forum Newbie
    Replies: 2
    Last Post: 4th January 2011, 13:24

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Digia, Qt and their respective logos are trademarks of Digia Plc in Finland and/or other countries worldwide.