My Qt version is 5.12.2. I have added DEFINES += QCUSTOMPLOT_USE_OPENGL in my .pro file. My .pro file is shown below:
#-------------------------------------------------
#
# Project created by QtCreator 2019-04-05T21:23:52
#
#-------------------------------------------------
QT += core gui
QT += charts
QT += network
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets printsupport
TARGET = oscilloscope_msvc2015
TEMPLATE = app
# The following define makes your compiler emit warnings if you use
# any feature of Qt which has 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
DEFINES += QCUSTOMPLOT_USE_OPENGL
# 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
CONFIG += c++11
SOURCES += \
main.cpp \
mainwindow.cpp \
fourier.cpp \
plotdata.cpp \
datathread.cpp \
axisthread.cpp \
qcustomplot.cpp
HEADERS += \
mainwindow.h \
fourier.h \
plotdata.h \
datathread.h \
axisthread.h \
qcustomplot.h
FORMS += \
mainwindow.ui \
fourier.ui
# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target
RESOURCES += \
res.qrc
but when I use setOpenGl(true) to turn on OpenGL, it keeps reporting error:
void QCustomPlot::setOpenGl(bool, int) QCustomPlot can't use OpenGL because QCUSTOMPLOT_USE_OPENGL was not defined during compilation (add 'DEFINES += QCUSTOMPLOT_USE_OPENGL' to your qmake .pro file)
So how to turn on OpenGL acceleration in QCustomPlot?
Try to run qmake and then rebuild.
I had this problem and after doing these, it was ok.
Related
I use Qt5.12.0, Qt Creator 4.8.0. So it doesn't contain QFtp but I need to use it. So I follow the way I found on the Internet, I put the .h, .lib, .prl, .dll files of Qt5Ftp to the corresponding directories in 'Qt\Qt5.12.0\5.12.0\msvc2017_64'. Then I built my project, the compiling process is successful, but there's an error in the linking process—
LINK : fatal error LNK1181: cannot open input file 'Qt5Ftp.obj'
I'd tried to rerun qmake, clean all, rebuild all, etc, everything I could try, but I still got this error.
Here's the content of the .pro file of my project—
QT += core gui network webenginewidgets
CONFIG += c++11
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
include(qtsingleapplication/src/qtsingleapplication.pri)
TARGET = YunQuBrowser
TEMPLATE = app
DEFINES += QT_DEPRECATED_WARNINGS
SOURCES += main.cpp\
mainwindow.cpp \
webview.cpp \
webpage.cpp \
ftpclient.cpp \
logfile.cpp \
cmdconfig.cpp
HEADERS += mainwindow.h \
webview.h \
webpage.h \
ftpclient.h \
logfile.h \
cmdconfig.h \
common.h
INCLUDEPATH += ./include
FORMS += mainwindow.ui
RESOURCES += \
YunQuBrowser.qrc \
RC_FILE = YunQuBrowserDesktopIcon.rc
CONFIG(debug, debug|release) {
LIBS += Qt5Ftpd
} else {
LIBS += Qt5Ftp
}
The last comment I post contains a mistake. The correct way is to change the whole CONFIG block into LIBS += -L"QFtp/qtftp_lib", which should be a directory, but not a path of a .lib file.
I have a Qt console app with the following .pro file:
QT -= gui
CONFIG += c++11 console
CONFIG -= app_bundle
# The following define makes your compiler emit warnings if you use
# any feature of Qt which as been marked 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
DISTFILES += \
data.txt
data_files.path = $$OUT_PWD
data_files.files = data.txt
INSTALLS += \
data_files
As you can see from my .pro file there are two files in project folder: main.cpp and data.txt
I want to copy data.txt from my source folder to build output folder and I know there is INSTALLS for my problem.
What's wrong with my .pro?
I found a few other hits when searching for this particular problem, but i cant get my setup to work with my unit test project(s).
project info: ( optional reading)
I am in the beginning of my final undergraduate project, where I am to
create an IDE for the language Promula and the the
verification tool Spin. The professor I am doing this with expects to
use it in his classes and for future undergraduates to keep improving. It is also meant to be a open source project everyone can contribute to.
Spin tool
my folder struture:
QSpin
-QSpin.pro
-QSpinApplication
--QSpinapplication.pro
--QSpinApplication.pri
--include
---Workspace
----*.h
--src
---Workspace
----*.cpp
-QSpinApplicationTests
--QSpinApplicationTests.pro
--WorkspaceGroupTests
---WorkspaceGroupTests.pro
----some cpp testfile
My QSpinApplication compiles and runs without any problems. The import of what i have so can be imported.
#include <Workspace/(file_name).h>
However in my test project WorkspaceGroupTests i want to include headers in the same way, but i cant get it to work. Beside that i assume the test project need to know where the cpp files are. If i dont use any of the application headers the test project compiles and runs with the default test case.
at the moment i am using a default shadow build with its root folder in the QSpin folder.
Any idea of how i get my test project working correctly, to actual be able to test my application classes?
QSpin.pro:
TEMPLATE = subdirs
CONFIG += ordered
SUBDIRS += \
QSpinApplication\QSpinApplication.pro \
QSpinApplicationTests
QSpinApplication.pro:
QT += quick qml gui
CONFIG += c++11
DEFINES += QT_DEPRECATED_WARNINGS
SOURCES +=src/main.cpp
include(QSpinApplication.pri)
RESOURCES += qml.qrc
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target
QSpinApplication.pri:
#//DEPENDPATH += $$PWD
INCLUDEPATH += ./include
SOURCES +=src/workspace/workspaceview.cpp \
src/workspace/groupitem.cpp \
src/workspace/groupitemsplitter.cpp \
src/workspace/workspacegroup.cpp \
src/workspace/workspaceviewattached.cpp \
src/workspace/workspaceviewiteminfo.cpp \
src/workspace/workspacegrouplinknode.cpp
HEADERS += \
include/workspace/workspaceview.h \
include/workspace/groupitem.h \
include/workspace/groupitemsplitter.h \
include/workspace/workspacegroup.h \
include/workspace/workspaceviewattached.h \
include/workspace/workspace.h \
include/workspace/workspaceviewiteminfo.h \
include/workspace/workspacegrouplinknode.h
QSpinApplicationTests.pro:
TEMPLATE = subdirs
SUBDIRS += \
WorkspaceGroupTests
WorkspaceGroupTests.pro:
QT += testlib
QT -= gui
DEPENDPATH+=./../../QSpinApplication
include(./../../QSpinApplication/QSpinApplication.pri)
CONFIG += qt console warn_on depend_includepath testcase
CONFIG -= app_bundle
TEMPLATE = app
SOURCES += tst_workspacegrouptests.cpp
Not sure if I understood well but in general, what I would advise is to create a separate structure for "lib" where you put logic code that can be tested, so default structure would look like that:
Structure:
├───app.pro
├───lib.pro
└───tests.pro
Then you put in your lib.pro:
TARGET = NameOfTarget
TEMPLATE = lib
CONFIG += staticlib
and add in your tests.pro, and in app.pro:
LIBS += -L../lib -lNameOfTarget
At end it should be possible without problems to include in app directory and in test:
#include "anyHeaderFromLib.h" .
As an extra addition for Michal Kalinowski answer:
Looks like this will work only for Linux/Mac, in case of Windows you should handle it on that way:
win32:CONFIG(release, debug|release): LIBS += -L../lib/debug -lNameOfTarget
else:win32:CONFIG(debug, debug|release): LIBS += --L../lib/release -lNameOfTarget
else:unix: LIBS += -L../lib -lNameOfTarget
Some more context can be get here: https://doc.qt.io/qtcreator/creator-project-qmake-libraries.html
I am trying to use the GetAdaptersAddresses function
In QT for this I tried to import the iphlpapi.h
This is my code:
#include <iphlpapi.h>
int check_mac(char * mac_vendor)
{
unsigned long alist_size = 0, ret;
ret = GetAdaptersAddresses(AF_UNSPEC,0,0,0,&alist_size);
}
I'm getting this error :
error: C3861: 'GetAdaptersAddresses': identifier not found
This is my .pro file:
QT += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = ooTptro
TEMPLATE = app
# 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
HEADERS += \
mainwindow.h
FORMS += \
mainwindow.ui
LIBS += Advapi32.lib
#LIBS += IPHLPAPI.lib
win32:LIBS += -lIPHLPAPI
Does anyone know why QT does not recognize the function and the include even though I have added both the include and the .pro file?
I'm trying to deploy QT to a 32 bit Windows but when I try to run the file on other computers (I tried on Windows 10) I get an error:
The application was unable to start correctly (0xc000007b)
To make the deploy I used this:
C:\Qt\5.9.1\ msvc2015\bin\windeployqt.exe -release -compiler-runtime my_program.exe
This is a picture of the output (partially) of dependency walker
It is important to note that I also use additional libraries (OpenSSL and Boost) in my software here is my PRO file:
#-------------------------------------------------
#
# Project created by QtCreator 2017-10-01T05:52:49
#
#-------------------------------------------------
QT += core gui multimedia multimediawidgets
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = MypROGRAM
TEMPLATE = app
# 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 \
HEADERS += \
mainwindow.h \
FORMS += \
mainwindow.ui
RESOURCES += \
my_icones.qrc
#openssl
win32 {
INCLUDEPATH += c:/OpenSSL-Win32/include
# for openssl - I added these 2 lines
LIBS += -LC:\OpenSSL-Win32\lib -llibeay32
}
RESOURCES += \
my_icones.qrc
# add boost support
INCLUDEPATH += C:/boost_1_65_1/
LIBS += "-LC:/boost_1_65_1/lib/"
# special libs
LIBS += Advapi32.lib
LIBS += User32.lib
LIBS += Mpr.lib
LIBS += Shlwapi.lib
LIBS += ntdll.lib
I would be very happy if any of you could help
Thanks.