Free Pascal Qt4 Binding

Description

The Free Pascal Qt4 binding allows Free Pascal to interface with the C++ Library Qt.

This binding does not cover the whole Qt4 framework but only the classes needed by the Cross Platform Lazarus IDE to use Qt as a Widget set

Contact

if you have questions or want to follow up on the latest developments: subscribe to the

Lazarus LCL/Qt Mailing List

Version History

V2.1
19 Feb 2010

Added QScocketNotifier, QTcpServer, QUdpSocket, QPointF, QtVersion

V2.0
18 Jan 2010

Qt qmake build system. qt4intf renamed to Qt4Pas

V1.72
21 Sep 2009

Improved signal hooking/method overriding, Windows:renamed types likes HDC to avoid name clashes

V1.71
15 Sep 2009

WebKit improvements (qlclwebpage, qlclwebview, qlclnetworkcookie), qlclthread, Added Library Versioning, Created LclwebKit Demo

V1.70
20 Apr 2009

Added Qt-Embedded(small fix), Linux 64

V1.69
19 Apr 2009

Qt 4.5.0 Linux, Windows and OsX

Links

Free Pascal (FPC)

Lazarus

FPC Wiki Qt4 Binding

Lazarus Wiki Qt Interface

FPC Wiki All Qt bindings

Online FPC Manuals

FPC-Pascal Mailing List

FPC-Devel Mailing List

Lazarus Mailing List

Nokia Qt Documentation

Qt2/Embedded Binding

Screenshots

The following screenshots provide a glimpse of results achieved

Click on the thumnails for larger images.

Documentation

Documentation about this Free Pascal Qt4 Binding can be found on this FPC Wiki Page

Downloads

Refresh your page (F5) if you have link problems

V2.2 (Maemo 5 Qt 4.6.2 for N900 PR 1.2)

Maemo Binding Instructions

The Lazarus LCL/Qt code still needs a patch, coordination is in progress.

V2.1 (Qt 4.5.X, compatible with Qt 4.7.X)

Qt 4.7 is binary compatible with Qt 4.6 and Qt 4.5, therefore the binding binary

created for Qt 4.5 should just work with Qt 4.7. However since Qt 4.7

sse2 is enabled by default, requiring the binding to be compiled with -mstackrealign

The following binary is compiled by adding a line QMAKE_CXXFLAGS += -mstackrealign

to the Qt4Pas.pro file (e.g. after the line QOBJECTS_DIR)

Linux X11 / Linux Qt-Embedded
- X11 i386 Libray Binary

V2.1 (Qt 4.5.X, compatible with Qt 4.6.X)

Note that shared library has been renamed to Qt4Pas (libQt4Pas.so,Qt4Pas.dll,Qt4Pas.frameworks)

Compile Lazarus svn on Linux: make PREFIX=/usr clean all LCL_PLATFORM=qt

Compile Lazarus svn on MAC: make clean all LCL_PLATFORM=qt

The split build version allows to compile all files seperately.(requested by a Debian packager)

V 1.72 (Qt 4.5.X, compatible with Qt 4.6.X,for latest stable Lazarus release)

For lazarus 21913 <= svn < 23858: No need to use USE_QT_45, minimum binding version V1.72.

Linux: make PREFIX=/usr clean all LCL_PLATFORM=qt

MAC: make clean all LCL_PLATFORM=qt OPT="-k'-framework' -k'Qt4Intf' -k'-lobjc' -k'-framework' -k'Foundation'"

Lazarus LCL/Qt WebKit demo

This demo implements a very basic browser, and provides sample code for cookies, proxy, authentication, flash enabling ...

Needs Binding >= V1.72 (lazarus svn 21913)

Download LCL WebKit Demo