fpGUI Interface

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Introduction

fpGUI is a widgetset completely written in Object Pascal. It links directly with the underlying windowing system, and thus avoids the need for many external libraries. More information on its website: http://opensoft.homeip.net/fpgui/

Other Interfaces

• Lazarus known issues (things that will never be fixed) - A list of interface compatibility issues
• Win32/64 Interface - The winapi interface for Windows 95/98/Me/2K/XP/Vista, but not CE
• GTK2 Interface - The gtk2 for Unixes, Mac OS X, Windows
• Carbon Interface - The Carbon Interface for Mac OS X
• Qt Interface - The Qt 4 Interface for Unixes, Mac OS X and linux-based PDAs
• Windows CE Interface - For Pocket PC and Smartphones
• fpGUI Interface - A widgetset completely written in Object Pascal

Creating your first LCL application with fpGUI

This is a step-by-step guide to build your first application with the fpGUI widgetset

1. Download the latest Lazarus from subversion and build it (not necessary if you downloaded a pre-compiled snapshot)

2. Download fpGUI from SubVersion with this command (you can also use TortoiseSVN to do this):

svn co https://fpgui.svn.sourceforge.net/svnroot/fpgui/trunk fpgui

3. Now we need to make the Lazarus LCL find the fpGUI code. We have two options:

3.1. Supported on all platforms. Copy two directories from the downloaded fpgui to lazarus

<fpGUI dir>/src/gui ⇒ lazarus/lcl/interfaces/fpgui/gui
<fpGUI dir>/src/corelib ⇒ lazarus/lcl/interfaces/fpgui/corelib

3.2. Linux or any other Unix type platforms. Create symbolic links from the fpGUI's corelib and gui directories to the Lazarus LCL directory as follows:

ln -s <fpGUI dir>/src/gui lazarus/lcl/interfaces/fpgui/gui
ln -s <fpGUI dir>/src/corelib lazarus/lcl/interfaces/fpgui/corelib

4. Open Lazarus, open the menu Tools-->"Configure Build Lazarus", select all options to None and LCL to Build+Clean, select fpGUI widgetset and rebuild it.

5. Go to the menu Compiler Options, select fpGUI as the widgetset and you can recompile your project to fpGUI =)

Implementation details

Component mapping

This is a table indication which FPGUI controls are used to build each LCL control.

LCL Control	FPGUI Control	Comments
TPageControl	TfpgPageControl	-

Road map for the fpGUI interface

Here: Roadmap#Widgetset_dependent_components