I'm done everything like in this tutorial: http://qt-project.org/wiki/LibQxt_in_QtCreator
I've downloaded latest libqxt, it was builded with no errors. I've also copy pasted header files.
Now I have my application running, and I want to include QxtGlobalShortcut - but the IDE says to me there is no such file... How to resolve this problem?
My *.pro file
QT += core gui
CONFIG += qxt
QXT += core gui widgets
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = QShot
TEMPLATE = app
SOURCES += main.cpp\
mainwindow.cpp
HEADERS += mainwindow.h
FORMS += mainwindow.ui
There's nothing wrong with your pro file. I see two possible problems:
You tried to include <QxtGlobalShortcut>, but you actually need to include <QxtGui/QxtGlobalShortcut>
You've installed it wrong. Are there qxt.prf and qxtvars.prf in $QTDIR/mkspecs/features?
Related
I am wondering why we have that option? Do anyone use it? It says:
"Creates a qmake-based project for which a code snippet can be entered."
Aren't we able to enter code snipped anyway?
In .pro file it look like this:( I have chosen console app)
TEMPLATE = app
QT = core
CONFIG += console
CONFIG -= app_bundle
SOURCES += main.cpp
HEADERS += \
test.h
I am using Qt Creator 2.4.1(Based on Qt 4.7.4) ..
Now I want to open the .mat file which I got from Matlab.
I am using the basic function matOpen
Initially, I knew the headers required. They are mat.h, matrix.h and tmw.h.
Now, before running the code, I need to link the libraries. The required libraries as far as I know are libmat.dll and libmw.dll . I added them to the .pro file as follows.
QT += core
QT -= gui
TARGET = mat_open_test
CONFIG += console
CONFIG -= app_bundle
TEMPLATE = app
SOURCES += main.cpp
HEADERS += \
mat.h \
matrix.h \
tmwtypes.h
LIBS += -L"C:\Users\skanduri\Documents\C ++\mat_open_test-build-desktop- Qt_4_8_1_for_Desktop_-_MinGW__Qt_SDK__Debug\debug\libmat.dll"
LIBS += -L"C:\Users\skanduri\Documents\C ++\mat_open_test-build-desktop-Qt_4_8_1_for_Desktop_-_MinGW__Qt_SDK__Debug\debug\libmx.dll"
Still I get error as : undefined reference to matOpen.. m sure the problem is with the linking.. But I dunno how to solve it. and the compiler Qt is using is MinGw .
You are specifying library path only, not the libraries itself. Try
LIBS += -L"C:\Users\skanduri\Documents\C ++\mat_open_test-build-desktop-Qt_4_8_1_for_Desktop_-_MinGW__Qt_SDK__Debug\debug"
LIBS += -llibmx
LIBS += -llibmat
I am writing a tool with Qt Creator which builds but immediately crashes with the message:
"The program can't start because pthreadVC2.dll is missing from your
computer. Try reinstalling the program to fix this problem".
Of course, the "pthreadVC2.dll" library is not missing (and is not corrupted, since it works with other projects), and it is located in the path specified in the Qt pro file:
# DeltaPlots.pro
TARGET = DeltaPlots
QT += core gui
CONFIG += console
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TEMPLATE = app
win32 {
INCLUDEPATH += S:\\3rdparty\\DFS.Infrastructure.ThreadingW \
S:\\3rdparty\\DFS.Infrastructure.File \
"C:\\path\\to\\boost\\boost_1_51_0"
win32-g++:LIBS += -L"S:\\lib\\" -lMyLib
win32-g++:LIBS += -L"S:\\3rdparty\\DFS.Infrastructure.File\\" -lDFS.Infrastructure.FileSystem
win32-g++:LIBS += -L"S:\\3rdparty\\DFS.Infrastructure.ThreadingW\\" -lDFS.Infrastructure.Threading -lpthreadVC2
}
SOURCES += MainWindow.cpp \
entrypoint.cpp
HEADERS += MainWindow.h
FORMS += MainWindow.ui
OTHER_FILES += ProjectList.txt \
ImageList.txt
Platform:
Windows 7
MinGW
Qt 4.8.3
Qt Creator 2.6.0
[Edit: This answer refers to the original question]
Usually you would add
LIBS += -LS:/3rdparty/DFS.Infrastructure.ThreadingW \
-lpthreadVC2
This adds your library's folder as a library search path (Note the capital -L) and pthreadVC2.lib as a library to link against (lower case -l).
You do not need to add the .dll to the LIBS path, as the .dll is loaded at runtime.
But: This approach only works when the .lib is in the same folder as the .dll. I'm a bit surprised you have yours in different locations.
Maybe adding
LIBS += -LS:/3rdparty
would work, but I'm not sure about that.
In any event, you need to deploy the .dll with your .exe for releases.
I am trying to compile a VLC-QT program but my compiler says it can't find vlc.h, even though I have included the path in my .pro file. Can anybody tell what's the problem with the following?
QT += core gui
TARGET = vlc
TEMPLATE = app
SOURCES += main.cpp\
vlc_on_qt.cpp
HEADERS += vlc_on_qt.h
INCLUDEPATH += C:\Qt\QT Project\libvlc-qt_0.5.1_win32_sdk\include\
LIBS += -LC:\Qt\QT Project\vlc\libvlc-qt_0.5.1_win32_sdk\lib
LIBS += -lvlc
You need to use #include <vlc/vlc.h> The library stores its header files in a separate directory as most libraries do.
I want to use the QCA Library with QT4.7 and QTCreator as IDE.
I downloaded the "qca-2.0.2-mingw" Version and try to link them in my ".Pro"-file:
QT += core
QT -= gui
LIBS += -L"\qca-2.0.2-mingw\lib\"
LIBS += -lqca2
CONFIG *= qt
CONFIG += console
CONFIG -= app_bundle
INCLUDEPATH += "\qca-2.0.2-mingw\include\QtCrypto"
INCLUDEPATH += "\qca-2.0.2-mingw\bin"
TARGET = untitled1
TEMPLATE = app
LINKAGE = -lqca
CONFIG(debug, debug|release) {
windows:LINKAGE = -lqcad
mac:LINKAGE = -lqca_debug
}
LIBS += $$LINKAGE
SOURCES += main.cpp
it compiles but when I run a HMAC sample, copied from this location, http://delta.affinix.com/docs/qca/mactest_8cpp-example.html#_a6
the application stuck with the following error:
Starting C:\Qt\2010.04\qt\untitled1\release\untitled1.exe...
C:\Qt\2010.04\qt\untitled1\release\untitled1.exe exited with code -1073741515
Commenting out some lines doesn't bring the effect. Even the first line of the HMAX Example, will lead to the results described above "QCA::Initializer init;"
I've tried the "qca-2.0.0-mingw" also, but the same effect occurres.
Greets and Thanks first,
Marco
If it builds, that's already good. If it doesn't start, usually DLLs are not found, at runtime. Try adding the path to the qca DLLs to your PATH. In creator you can configure that in the Run Environment section of your Run configuration (Project/Run Settings).