#if QT_VERSION >= 0x050000
extern HICON qt_pixmapToWinHICON(const QPixmap &p);
#else
#define qt_pixmapToWinHICON(p) p.toWinHICON()
#endif

HICON hIcon = qt_pixmapToWinHICON(QPixmap("test.png"));


References:

1. Get rid of some obsolete functions in QImage / QPixmap / QPixmapData
2. QtGui: Bring back HBITMAP/HICON conversion functions

Downloads: http://www.libqxt.org
Documentation: http://doc.libqxt.org
Change log: http://dev.libqxt.org/libqxt/raw/v0.6.2/CHANGES

Downloads: http://www.libqxt.org
Documentation: http://doc.libqxt.org
Change log: http://dev.libqxt.org/libqxt/raw/v0.6.1/CHANGES

LibQxt, an extension library for Qt, provides a suite of cross-platform utility classes to add functionality not readily available in the Qt toolkit by Nokia.

LibQxt 0.6.0 introduces new features and contains bug fixes to the 0.5.x series:

• General
• Revised the build system
• Revised docs (now based on qdoc3)
• QxtConfig.cmake
• Bug fixes
• #4 QxtDaemon::daemonize() compilation warning
• #24 QxtFlowView::currentIndex()
• #29 qxtwecore
• #33 Problem in QxtMailMessage
• #34 Debug PDB files
• #36 QxtCommandoptions on Windows wrong option parsing
• #41 Compilation issue on Mac
• QxtCore
• Added QxtModelSerializer
• Removed obsolete QxtSemaphore
• Added QxtJSON
• QxtCrypto
• Revised QxtBlowfish
• QxtGui
• Added rich text support to QxtItemDelegate
• Removed obsolete QxtTabWidget::TabMovementMode & QxtTabBar
• Removed obsolete QxtDockWidget
• Revised QxtConfigDialog & QxtConfigWidget
• Enhanced QxtWindowSystem::idleTime() to resolve libXss at run-time
• Added QxtCrumbView::crumbDelegate()
• Added QxtFilterDialog and QxtLookupLineEdit
• QxtNetwork
• Added QxtXmlRpc
• Added QxtMainAttachment::fromFile()
• Revised QxtSmtp
• Added QxtJSONRpcClient and QxtJSONRpcCall
• Added QxtZeroConf module

More information and downloads are available at http://libqxt.org.

LibQxt, an extension library for Qt, provides a suite of cross-platform utility classes to add functionality not readily available in the Qt toolkit by Qt Development Frameworks, Nokia.

LibQxt 0.5.1 contains bug fixes to the 0.5.x series:

• #3 [Vista/Qt 4.5.0] – static build issue
• #9 QxtCheckComboBox display is inconsistent
• #10 qxtwindowsystem_win.cpp(105) : error C2065: ‘LASTINPUTINFO’: undeclared identifier
• #16 Static lib linkage problem in Qt Creator
• #17 QxtPushButton::minimumSizeHint returns wrong value
• Fixed QxtGlobalShortcut to allow NumLock on X11
• Fixed compilation problems with the GCC-4.4.X series
• Fixed QxtGlobalShortcut::shortcut()

More information and downloads are available at http://libqxt.org.

HEADERS += foo.h \
           bar.h
SOURCES += foo.cpp \
           bar.cpp

vs.

HEADERS += foo.h
HEADERS += bar.h
SOURCES += foo.cpp
SOURCES += bar.cpp

Before getting bogged down into details, let me ask which syntax do YOU prefer?
Note: There is a poll embedded within this post, please visit the site to participate in this post's poll.

From what I’ve seen, the former syntax is much more popular, also used by the Qt project itself. But the thing is, the latter syntax is — in my humble opinion — much safer and a lot more convenient to maintain. It allows one to reorganize lines within a project file or to move lines from one file to another, without double checking for possible syntax errors that might cause weird build problems.

I could imagine the latter syntax being somewhat slower to parse, but I never really cared about it. However, the recent discussion raised a question in my head — how big is the difference? So I created six test projects to play with:

I measured the average elapsed time when running qmake for ten times for each of the aforementioned test projects. Here are the results:

To me the difference looks quite marginal, considering how often one actually re-runs qmake when building a project…

LibQxt, an extension library for Qt, provides a suite of cross-platform utility classes to add functionality not readily available in the Qt toolkit by Trolltech, a Nokia company.

LibQxt 0.5.0 introduces new features and contains bug fixes to the 0.4.x series:

• General
• Added LGPL license option
• Run Krazy checks and fixed found issues
• Improved configure.bat
• Added missing export macros
• Added missing convenience headers
• Improved compatibility
• QT_FORWARD_DECLARE_CLASS
• Q_SLOTS, Q_SIGNALS & Q_FOREACH in headers
• interface
• QxtCore
• Revised QxtFifo
• Added QxtAlgorithms
• Added QxtSerialDevice
• Added QxtSlotMapper
• QxtCrypto
• Revised QxtBlowfish
• QxtGui
• Added QxtWindowSystem::idleTime()
• Added QxtCrumbView
• Improved QxtScheduleView
• Added QxtSortFilterProxyModel
• Improved QxtSpanSlider
• Added QxtSpanSlider::HandleMovementMode
• Improved QxtItemDelegate
• Added ProgressMinimumRole & ProgressMaximumRole
• Added support for busy indicator mode
• Improved QxtLetterBoxWidget
• Added QxtLetterBoxWidget::margin
• Added QxtLetterBoxWidget::resizeWidget
• QxtWeb
• Added QxtWebCgiService

More information and downloads are available at http://libqxt.org.

• Tasks extension for mercurial
• mercurial tasks extension