efg's Kylix Notes

Page	Description
Color Mask	Delphi (D7) and Kylix (K3) project showing selected bits of 24-bit color image. (Feb 2003)
Hershey's Font	Delphi (D3..D7) and Kylix (K1..K3) project showing the characters in Hershey's font. Download section. Separate VCL and CLX versions.
SimpleBarChart	D3/D4/D5/D6 and Kylix project showing how to create a simple bar chart in a device-independent way. Separate VCL and CLX versions.
Deployment	Kylix Deployment Notes for "Hello World" (Oct 2002)
VMware	Kylix Under VMware (Nov 2002)
CRC	Converted old VCL project to a CLX project: CRC Calculator application (Dec 2002)
CLX Form Portability	Discusses problems with CLX form portability, especially when using the default form properties. (Dec 2002)

Topic	Subtopic	Description
DWORD		DWORD from Delphi's Windows.pas is defined as a LongWord in the Types unit.
RGB function		The RGB function from the Delphi Windows unit is missing in Kylix for defining colors. Just supply your own: FUNCTION RGB(r, g, b: BYTE): TColor; BEGIN Result := (r OR (g SHL 8) OR (b SHL 16)) END {RGB};
TForm	Application icon	The Application icon must be set as a Form property in Kylix. In Delphi this also works but I had learned to set it in Delphi via Project \| Options \| Application \| Icon.
	AutoScroll	Conventional wisdom from Delphi is to use Scaled=TRUE and AutoScroll=FALSE. I prefer Scaled=FALSE and AutoScroll=FALSE. See CLX Form Portability. I suggest NEVER using AutoScroll=TRUE. Also see PixelsPerInch.
	BorderIcons	I had problems getting Kylix to honor the Border Icons (maximize = FALSE) and Border Style ("single"), but they worked after resetting them a several times.
	Constraints	In Kylix set the Constraints at run time to prevent a form from being resize. For example, put this in the FormCreate handler: WITH FormName.Constraints DO BEGIN MaxHeight := Height; MaxWidth := Width; MinHeight := Height; MinWidth := Width; END
	PixelsPerInch	See comments by James R. Knowles under "FORMS" as part of his "Adventures in Kylix": www.ifm-services.com/people/jamesk/kylix/adv_in_kylix-4.html Specify the DPI for your X-Server in these ways: 1. Specify -dpi with startx (Red Hat 7.2): startx -- -dpi 96 2. As root create an /etc/X11/xinit/xserverrc file like this (Red Hat 7.2 or Mandrake 9.0): #! /bin/sh exec /usr/bin/X11/X -dpi 75 -nolisten tcp 3. In Red Hat 8.0, select Red Hat \| System Settings \| Display \| <root password>. On the Display tabsheet specify resolution and color depth, while on the Advance tabsheet specify monitor type and DPI. This command xrdb -q \| grep dpi shows Xft.dpi: 96 Note: Delphi in Windows usually defaults to 96 DPI with "Small Fonts" (Right click on desk top \| Properties \| Settings \| Advanced \| General \| Display)
	Scaled	Conventional wisdom from Delphi is to use Scaled=TRUE and AutoScroll=FALSE. I prefer Scaled=FALSE and AutoScroll=FALSE. See CLX Form Portability. Also see PixelsPerInch.
TListBox	OnDrawItem	Change in function header for TListBox OnDrawItem. See the conversion section in the Hershey's Font project.
TSpinEdit	OnChange	The OnChange of the TSpinEdit did not survive the transfer from Delphi to Kylix. I had to re-establish this method.
TSavePictureDialog		This does not exist in Kylix. Use TSaveDialog instead.

Lasse Vågsæther Karlsen's Versions.INC (updated for Delphi and Kylix) is quite useful for creating IFDEFs for version-sensitive code. Updated for D7 by Jim McKeeth.

When you create a new Delphi/Kylix project, the project file Project1.dpr is automatically created. The $R statement included in this Project1.dpr file varies by version of Delphi/Kylix:

Before converting to Kylix from Delphi 4 or before, open the form in D5 or later and select "Text DFM" -- but this may not always be needed. For example, this was not needed in the SimpleBarChart project.

See SimpleBarChart project for IFDEFs used to maintain D3/D4/D5/D6 VCL compatibility with Kylix CLX. This was possible since the components that were used were in one set of units or the other.

Page	Description
Magnifier	Added link: Dr. Chris Rorden's Kylix magnifier example www.psychology.nottingham.ac.uk/staff/cr1/kylix.html
Math Info	Added summary of changes to the math unit introduced in Kylix to Section A of the Math Info page.
Scanline	efg's UseNet Post with Kylix pf32bit example. This supplements the existing pf32bit PixelFormat info in the Scanline Tech Note. Added list of Kylix PixelFormats to introduction.

Version	Project Filename	$R statement in .dpr file	Resource File
Kylix	Project1.dpr	{$R *.res}	Project1.res
D6	Project1.dpr	{$R *.res}	Project1.res
D2-D5	Project1.dpr	{$R *.RES}	Project1.res
D1	project1.dpr	{$R *.RES}	PROJECT1.RES

Version	Source Code File	Form File	$R statement in .pas file	Option to Store Form as Text^*
Kylix	Unit1.pas	Unit1.xfm	{$R *.xfm}	Yes
D6	Unit1.pas	Unit1.dfm	{$R *.dfm}	Yes
D5	Unit1.pas	Unit1.dfm	{$R *.DFM}	Yes
D2-D4	Unit1.pas	Unit1.dfm	{$R *.DFM}	No
D1	unit1.pas	UNIT1.DFM	{$R *.DFM}	No