How to include Qwt library to current project

[thippu]

I read all the info on http://qwt.sourceforge.net/qwtinstall.html#COMPILEANDLINKAPP
Did execute as it is but if I do #include<dwf.h> in project it say fatal error:

qwt.h: No such file or directory

I will also show you the pro file

QT       += core gui multimedia printsupport widgets
CONFIG += qwt
TARGET = qt_oscillioscope
TEMPLATE = app
INCLUDEPATH += C:\qwt2\qwt-6.1.3\include
LIBS += -L"C:\qwt2\qwt-6.1.3\lib"-lqwt
# The following define makes your compiler emit warnings if you use
# any feature of Qt which as been marked as deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS

# You can also make your code fail to compile if you use deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0


SOURCES += \
        main.cpp \
        mainwindow.cpp \
    qcustomplot.cpp

HEADERS += \
        mainwindow.h \
    qcustomplot.h

FORMS += \
        mainwindow.ui

please help me!!!

[JKSH]

@thippu said in How to include Qwt library to current project:

CONFIG += qwt
INCLUDEPATH += C:\qwt2\qwt-6.1.3\include
LIBS += -L"C:\qwt2\qwt-6.1.3\lib"-lqwt

Instead of the 3 lines above, you can add just 1 line to your .pro file:

include(C:/qwt2/qwt-6.1.3/features/qwt.prf)

Also, in Qt it is best to use / instead of \ (So use "C:/qwt2/" instead of "C:\qwt2\")

[thippu]

@JKSH Bro,Thank you that one line worked!
How to get qwt designer included in the project

[JKSH]

@thippu said in How to include Qwt library to current project:

@JKSH Bro,Thank you that one line worked!

Great!

How to get qwt designer included in the project

I haven't done this myself so I don't know, sorry. See if the user manual helps: http://qwt.sourceforge.net/qwtinstall.html

[thippu]

@SGaist , @aha_1980 , could you tell me how to include the qwt widgets to qt designer

[jsulm]

@thippu Did you follow the link @JKSH gave you? You will find there information about how to install designer plugins for QWT...

[thippu]

@jsulm yes , I'm trying