VirtualTreeview Example for Lazarus/fr
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Voici quelques exemples sur la façon d'utiliser VirtualTreeview pour Lazarus (testé sur win32). Ceci sont essentiellement collectés à partir du web écrit pour delphi, et à partir des tutoriels/documents par Philipp Frenzel et Mike Lischke. Les tutoriels/documents peuvent être téléchargé à partir de l'adresse http://www.soft-gems.net . Ci dessous quelqu'un trouverait seulement la manière rapide d'utiliser VirtualTreeview avec Lazarus, pas une explication. Pour des explications et de nombreuses autres fonctions/méthodes obtenir les documents officiels et le didacticiel.
Arbre de base Listview avec trois Colonnes
1. Installez le composant. Exécutez lazarus.
2. Déposez un composant TVirtualStringTree (Sous l'onglet Virtual Controls).
3. Aller à l'éditeur de source (Appuyez sur F12). Sous la clause Uses ajoutez une unité - appelée VirtualTrees (si elle n'est pas déjà là et ce n'est pas le VirtualStringTree). Ainsi, il peut ressembler à:
uses Classes, SysUtils, LResources, Forms, Controls, Graphics, Dialogs, VirtualStringTree, VirtualTrees;
4. Get to the Form Designer (press F12). Select the Virtual Tree Component. On the Object Inspector click on Name, type VST and press enter. Click on Header (expand it) -> Columns, click on the small button next to "0 items". Click 3 times on Add button to add 3 columns. Do not close this window.
5. On the Column Editing window now the 3rd column is selected. Get to the Object Inspector. Click on Options (expand it) -> set coAllowClicks to False.
6. Click on Text. Type Column2.
7. Click on Width, type 100 and press enter.
8. Get to the Column Editing window, select 1st and 2nd column, and set their property as above (for Text field, use different names, ie Column0, Column1).
9. Close the Column Editing window. Select the Virtual Tree Component on form. On Object Inspector get to Header -> Options (expand). Set hoVisible to True.
10. Scroll down to Style set it to hsFlatButtons.
11. Scroll down to TreeOptions(expand) -> MiscOption(expand), set toEditable to True. Set toGridExtensions to True.
12. Scroll down to SelectionOptions(expand) -> set toExtendedFocus to True. Set toMultiSelect to True. On the Form Designer resize VST (Virtual Tree Component) to get view of all the columns, if needed.
13. Now to add 3 buttons on the form. Get these from the component palette - Standard Tab ("OK" Label).
14. Click on Button1, on Object Inspector change Caption to AddRoot. Click on Button2, change the caption to AddChild. Change the caption of Button3 to Delete.
15. Keep this here and get to the Source Editor (press F12). On Source Editor replace the line:
{$mode objfpc}{$H+} with {$MODE DELPHI}
16. Under the "implementation" paste following lines:
type PTreeData = ^TTreeData; TTreeData = record Column0: String; Column1: String; Column2: String; end;
17. Get to the Form Designer (press F12). Select VST. Go to Object Inspector, select Events tab, scroll down to onChange. Double click on the combobox. Paste the follwings:
procedure TForm1.VSTChange(Sender: TBaseVirtualTree; Node: PVirtualNode); begin VST.Refresh; end;
18. Scroll to onFocusChanged. Double click and paste the follwings:
procedure TForm1.VSTFocusChanged(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex); begin VST.Refresh; end;
19. Scroll to onFreeNode. Double click and paste the follwings:
procedure TForm1.VSTFreeNode(Sender: TBaseVirtualTree; Node: PVirtualNode); var Data: PTreeData; begin Data:=VST.GetNodeData(Node); if Assigned(Data) then begin Data^.Column0 := ''; Data^.Column1 := ''; Data^.Column2 := ''; end; end;
20. Scroll down to onGetNodeDataSize. Double click & paste the follwings:
procedure TForm1.VSTGetNodeDataSize(Sender: TBaseVirtualTree; var NodeDataSize: Integer); begin NodeDataSize := SizeOf(TTreeData); end;
21. Scroll to onGetText. Double click & paste the follwings:
procedure TForm1.VSTGetText(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; TextType: TVSTTextType; var CellText: WideString); var Data: PTreeData; begin Data := VST.GetNodeData(Node); case Column of 0: CellText := Data^.Column0; 1: CellText := Data^.Column1; 2: CellText := Data^.Column2; end; end;
22. Press F12 to get Form Designer. Double click AddRoot button. Paste the followings:
procedure TForm1.Button1Click(Sender: TObject); Var Data: PTreeData; XNode: PVirtualNode; Rand: Integer; Begin Randomize; Rand := Random(99); XNode:=VST.AddChild(nil); if VST.AbsoluteIndex(XNode) > -1 then Begin Data := VST.GetNodeData(Xnode); Data^.Column0:= 'One ' + IntToStr(Rand); Data^.Column1:= 'Two ' + IntToStr(Rand + 10); Data^.Column2:= 'Three ' + IntToStr(Rand - 10); End; End;
23. Press F9 to Run the project to check. Click on AddRoot to add node. If it is ok, node will be added on VST.
24. Stop execution. On the Form Designer double click the AddChild captioned button. Paste the followings:
procedure TForm1.Button2Click(Sender: TObject); var XNode: PVirtualNode; Data: PTreeData; begin if not Assigned(VST.FocusedNode) then Exit; XNode := VST.AddChild(VST.FocusedNode); Data := VST.GetNodeData(Xnode); Data^.Column0:= 'Ch 1'; Data^.Column1:= 'Ch 2'; Data^.Column2:= 'Ch 3'; VST.Expanded[VST.FocusedNode]:=True; end;
25. On the Form Designer double click the Delete captioned button. Paste the followings:
procedure TForm1.Button3Click(Sender: TObject); begin VST.DeleteSelectedNodes; end;
26. Run the project by pressing F9 to check. Add some node, child and delete them.
27. Try to edit a node. Select a node and press F2, write new value. If you can see what you are typing then it is OK. Else, read bellow "If Cell Editing Can't Be Seen".
28. To get VST show the new value entered after editing, go to the Form Designer, select VST. On Object Inspector -> Events -> OnNewText combobox double click. Paste the followings:
procedure TForm1.VSTNewText(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; NewText: WideString); Var Data: PTreeData; begin Data := VST.GetNodeData(Node); Case Column of 0: Data^.Column0:= NewText; 1: Data^.Column1:= NewText; 2: Data^.Column2:= NewText; End; end;
So far, example for basic use ends here. You may drop few more buttons on the form to test few more commands given bellow. Next would be, showing checkbox, image, font colour and adding combobox on node.
- Another Way To Add Root Node
procedure TForm1.Button8Click(Sender: TObject); begin with VST do RootNodeCount:=RootNodeCount+1; end;
- Another Way To Add Child
procedure TForm1.Button9Click(Sender: TObject); begin if Assigned(VST.FocusedNode) Then VST.ChildCount[VST.FocusedNode]:=VST.ChildCount[VST.FocusedNode]+1; end;
- Determine & Delete Children Of A Node
procedure TForm1.Button4Click(Sender: TObject); Var c: Integer; begin if not Assigned(VST.FocusedNode) then Exit; If VST.HasChildren[VST.FocusedNode] then Begin c := VST.ChildCount[VST.FocusedNode]; VST.DeleteChildren(VST.FocusedNode); ShowMessage('Number of deleted child:' + #13#10 + IntToStr(c)); End; end;
- Delete Node
procedure TForm1.Button5Click(Sender: TObject); begin {VST.Clear; //Delete All Nodes} if not Assigned(VST.FocusedNode) then Exit; VST.DeleteNode(VST.FocusedNode); end;
- Search And Select Node
procedure TForm1.Button6Click(Sender: TObject); Var XNode: PVirtualNode; Data: PTreeData; begin XNode:= VST.GetFirst; while XNode <> nil do begin Data:=VST.GetNodeData(XNode); if Data^.Column0 = '1' then Begin VST.ClearSelection; VST.Selected[XNode]:=True; VST.SetFocus; break; End Else XNode:= VST.GetNextSibling(XNode); End; End;
- Determine Parent
procedure TForm1.Button13Click(Sender: TObject); var XNode: PVirtualNode; begin if not Assigned(VST.FocusedNode) then Exit; XNode:=VST.FocusedNode; while VST.GetNodeLevel(XNode) > 0 do Begin XNode := XNode.Parent; VST.Selected[XNode]:= True; End; VST.Refresh; VST.SetFocus; end;
- Search All
procedure TForm1.Button7Click(Sender: TObject); Var XNode: PVirtualNode; Data: PTreeData; begin If VST.GetFirst = nil then Exit; XNode:=nil; Repeat if XNode = nil then XNode:=VST.GetFirst Else XNode:=VST.GetNext(XNode); Data:=VST.GetNodeData(XNode); If (Data^.Column0 = '1') OR (Data^.Column1 = '1') OR (Data^.Column2 = '1') then Begin ShowMessage('Found at Node Level : ' + IntToStr(VST.GetNodeLevel(XNode)) ); break; End; Until XNode = VST.GetLast(); end;
- Insert Node
procedure TForm1.Button12Click(Sender: TObject); var XNode: PVirtualNode; begin If Assigned(VST.FocusedNode) then begin XNode := VST.InsertNode(VST.FocusedNode,amInsertBefore); // To Insert After Selected Node. {XNode := VST.InsertNode(VST.FocusedNode,amInsertAfter);} VST.Refresh; end; end;
- Set Node Height
procedure TForm1.Button14Click(Sender: TObject); begin If Assigned(VST.FocusedNode) then VST.NodeHeight[VST.FocusedNode] := 32; end;
- Save And Load
Simple tree (without column) can be saved and loaded as:
VST.SaveToFile('filename.dat'); VST.LoadFromFile('filename.dat');
To save and load the above mentioned example, place 2 buttons on the form, rename caption to "Save" and "Load". Select VST, on Object Inspector -> TreeOptions -> StringOptions make sure toSaveCaptions is set to True. Go to Object Inspector's Events tab. Scroll down to OnLoadNode, double click and then paste:
procedure TForm1.VSTLoadNode(Sender: TBaseVirtualTree; Node: PVirtualNode; Stream: TStream); Var Data: PTreeData; Len: Integer; begin Data := VST.GetNodeData(Node); Stream.read(Len, SizeOf(Len)); SetLength(Data^.Column0, Len); Stream.read(PChar(Data^.Column0)^, Len); Stream.read(Len, SizeOf(Len)); SetLength(Data^.Column1, Len); Stream.read(PChar(Data^.Column1)^, Len); Stream.read(Len, SizeOf(Len)); SetLength(Data^.Column2, Len); Stream.read(PChar(Data^.Column2)^, Len); end;
Again on Object Inspector's Events tab - scroll down to OnSaveNode, double click and then paste:
procedure TForm1.VSTSaveNode(Sender: TBaseVirtualTree; Node: PVirtualNode; Stream: TStream); Var Data: PTreeData; Len: Integer; begin Data := VST.GetNodeData(Node); Len := Length(Data^.Column0); Stream.write(Len, SizeOf(Len)); Stream.write(PChar(Data^.Column0)^, Len); Len := Length(Data^.Column1); Stream.write(Len, SizeOf(Len)); Stream.write(PChar(Data^.Column1)^, Len); Len := Length(Data^.Column2); Stream.write(Len, SizeOf(Len)); Stream.write(PChar(Data^.Column2)^, Len); end;
On Form Designer double click Save captioned button, paste:
procedure TForm1.Button10Click(Sender: TObject); begin VST.SaveToFile('C:\vst.dat'); end;
On Form Designer double click Load captioned button, paste:
procedure TForm1.Button11Click(Sender: TObject); begin VST.LoadFromFile('C:\vst.dat'); end;
Now test to save and load tree.
- Scroll Problem
The header of the treeview disappears fully or partially when scrolling. I could not find a good solution for this. One way to overcome this is to set the header height to 0, then using general label for columns. This is good while there are few columns, and all are visible without horizontal scrolling. Or, the header height can be set to a higher value like 25 or 30. VST.Refresh can be added to the OnScroll event.
- Column Resize
It was not possible to resize column by dragging mouse on VST header. May be it is for the header bug or I have missed something. If it is for the header, probably will be fixed on next version of Lazarus. See this link: http://bugs.freepascal.org/view.php?id=11209
Anyway, it is possible to resize column from code. When you press down right mouse button and move mouse-wheel up, the width of the selected column increases and press down the right mouse button and move mouse-wheel down, to decrease the width of the selected column. To do this:
1. Add a variable in the source editor named as CurCol: Integer; So it looks like:
var Form1: TForm1; CurCol: Integer; // <- Add this line only. implementation { TForm1 }
2. On the Form Designer double click the form to generate an event OnCreate. Inside the OnCreate procedure type Form1.OnMouseWheelUp:= and press Ctrl+Shift+C, this will complete the code and make skeleton of the MouseWheelUp event. Now get back to procedure TForm1.FormCreate(Sender: TObject); And add another event for MouseWheelDown. Type Form1.OnMouseWheelDown:= and press Ctrl+Shift+C, to generate the MouseWheelDown event. FormCreate procedure now looks like:
procedure TForm1.FormCreate(Sender: TObject); begin Form1.OnMouseWheelUp:=@Form1MouseWheelUp; Form1.OnMouseWheelDown:=@Form1MouseWheelDown; end;
3. Fill the TForm1.Form1MouseWheelUp procedure as:
procedure TForm1.Form1MouseWheelUp(Sender: TObject; Shift: TShiftState; MousePos: TPoint; var Handled: Boolean); begin If VST.Focused then if ssRight in Shift then VST.Header.Columns[CurCol].Width:= VST.Header.Columns[CurCol].Width + 10; end;
4. Fill the TForm1.Form1MouseWheelDown procedure as:
procedure TForm1.Form1MouseWheelDown(Sender: TObject; Shift: TShiftState; MousePos: TPoint; var Handled: Boolean); begin If VST.Focused then if ssRight in Shift then VST.Header.Columns[CurCol].Width:= VST.Header.Columns[CurCol].Width - 10; end;
5. Go to the Form Designer (press F12), select VST, on Object Inspector's Events tab scroll to OnFocusChanged, double click & paste:
procedure TForm1.VSTFocusChanged(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex); begin CurCol:=Column; end;
When you run, click on a column then hold down right mouse button and move wheel up to increase width, wheel down to decrease. You may tune-up the above procedures if needed. Or, add keyboard event with something like "if (key=187) and (ssShift in Shift) then" to watch for Shift + "+".
Checkbox
On Form Designer select VST. Go to:
- Object Inspector -> Properties -> CheckImageKind and select ckDarkCheck.
- Object Inspector -> Properties -> TreeOptions -> MiscOptions -> toCheckSupport and set it to True.
Now switch to Events tab.
- Scroll to OnInitNode. Double click and paste the followings:
procedure TForm1.VSTInitNode(Sender: TBaseVirtualTree; ParentNode, Node: PVirtualNode; var InitialStates: TVirtualNodeInitStates); Var Level: Integer; begin Level := VST.GetNodeLevel(Node); if Level = 0 then Node.CheckType:=ctCheckBox; if Level = 2 then Node.CheckType:=ctRadioButton; if Level = 1 then begin Node.CheckType:=ctTriStateCheckBox; Node.CheckState := csCheckedNormal; end; if Level = 3 then Node.CheckType:=ctButton; end;
Run the program, add rootnode and child then child of the child, and check if you can check and uncheck properly. If not, close the program. Go to the Object Inspector's Events tab.
- Scroll to OnChecked, double click and paste:
procedure TForm1.VSTChecked(Sender: TBaseVirtualTree; Node: PVirtualNode); begin vst.Refresh; end;
- Scroll to OnChecking, double click and paste:
procedure TForm1.VSTChecking(Sender: TBaseVirtualTree; Node: PVirtualNode; var NewState: TCheckState; var Allowed: Boolean); begin VST.Refresh; end;
Hope now it is ok. To determine checkbox state use like:
If XNode.CheckState = csCheckedNormal then
ShowMessage('Checked.');
Other states are:
csUncheckedNormal = unchecked and not pressed csUncheckedPressed = unchecked and pressed csCheckedNormal = checked and not pressed csCheckedPressed = checked and pressed csMixedNormal = 3-state check box and not pressed csMixedPressed = 3-state check box and pressed
Other types are:
ctNone ctTriStateCheckBox ctCheckBox ctRadioButton ctButton
- To Catch Checkbox's Button (ctButton) Click
Go to Object Inspector's Events tab. Scroll to OnChecked, double click and paste:
procedure TForm1.VSTChecked(Sender: TBaseVirtualTree; Node: PVirtualNode); begin if Node.CheckType = ctButton then ShowMessage('Ok.'); VST.Refresh; end;
End of checkbox.
Image & Font Colour
To show image on VST nodes, a list of image should be created.
- Go to the Component Palette -> Common Controls. Select and drop a TImageList component on the form. Right click on the component icon and select ImageList Editor. Click on Add button and and select some images (at least 3 for now), then click on tick button to accept and close the ImageList Editor. By the way, there are some nice images you can download from http://www.famfamfam.com/lab/icons/silk/
- Now on the Form Designer select VST, and on Object Inspector's Properties tab, scroll to Images and select ImageList1
- On Object Inspector's Events tab scroll to OnGetImageIndex, double click and paste:
procedure TForm1.VSTGetImageIndex(Sender: TBaseVirtualTree; Node: PVirtualNode; Kind: TVTImageKind; Column: TColumnIndex; var Ghosted: Boolean; var ImageIndex: Integer); begin if Kind in [ikNormal , ikSelected] then // Either Selected or not begin if Column = 0 then // if 1st Column ImageIndex:=0; // 1st Image of the ImageList1 if Column = 1 then // if 2nd Column ImageIndex:=1; // 2nd Image of the ImageList1 if Sender.FocusedNode = Node then // Only show if Focused if Column =2 then // if 3rd Column ImageIndex:=2; // 3rd Image of the ImageList1 end; {Sender.NodeHeight[node]:=40; //If Image is big} end;
Font Colour
On the Form Designer select VST, and on Object Inspector's Events tab, scroll to OnPaintText, double click and paste:
procedure TForm1.VSTPaintText(Sender: TBaseVirtualTree; const TargetCanvas: TCanvas; Node: PVirtualNode; Column: TColumnIndex; TextType: TVSTTextType); Var Data: PTreeData; begin Data := VST.GetNodeData(Node); if Data^.Column0 = 'sky' then TargetCanvas.Font.Color:=clBlue; if Column = 1 then begin TargetCanvas.Font.Color:=clRed; TargetCanvas.Font.Style:= Font.Style + [fsItalic]; end; if Column = 2 then begin // ImageList1.Draw(Form1.Canvas,-1,-1,2); {draw top left of form, 3rd image of ImageList1??} TargetCanvas.Font.Size:= 9; TargetCanvas.Font.Color:=clHighlightText; end; end;
Image & Font Colour ends here.
Adding A Combobox
- I guess you have an open project on Lazarus IDE having VST on it and can edit the nodes. If not see the "Basic Tree Listview With 3 Columns" above, and atleast complete steps 1 to 21.
- Bellow there is an unit file named combo. Copy that unit and save as combo.pas inside the project directory. Under your program's uses clause add combo. So it may look like:
uses Classes, SysUtils, LResources, Forms, Controls, Graphics, Dialogs, VirtualStringTree, VirtualTrees, combo;
- The combo.pas unit
unit combo; {$mode delphi} interface uses Classes, SysUtils, LResources, Forms, Controls, Graphics, Dialogs, VirtualStringTree, VirtualTrees, messages, windows, StdCtrls; type TStringEditLink = class(TInterfacedObject, IVTEditLink) private FEdit: TWinControl; FTree: TVirtualStringTree; FNode: PVirtualNode; FColumn: Integer; protected procedure EditKeyDown(Sender: TObject; var Key: Word; Shift: TShiftState); public destructor Destroy; override; function BeginEdit: Boolean; stdcall; function CancelEdit: Boolean; stdcall; function EndEdit: Boolean; stdcall; function GetBounds: TRect; stdcall; function PrepareEdit(Tree: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex): Boolean; stdcall; procedure ProcessMessage(var Message: TMessage); stdcall; procedure SetBounds(R: TRect); stdcall; end; implementation destructor TStringEditLink.Destroy; begin FEdit.Free; inherited; end; procedure TStringEditLink.EditKeyDown(Sender: TObject; var Key: Word; Shift: TShiftState); begin case Key of VK_ESCAPE: begin FTree.CancelEditNode; Key := 0; FTree.setfocus; end; VK_RETURN: begin PostMessage(FTree.Handle, WM_KEYDOWN, VK_DOWN, 0); Key := 0; FTree.EndEditNode; FTree.setfocus; end; End; //case end; function TStringEditLink.BeginEdit: Boolean; begin Result := True; //FEdit.Height:=(FTree.DefaultNodeHeight - 1); //Needed for editbox. Not combo FEdit.Show; TComboBox(FEdit).DroppedDown:=True; FEdit.SetFocus; end; function TStringEditLink.CancelEdit: Boolean; begin Result := True; FEdit.Hide; end; function TStringEditLink.EndEdit: Boolean; var S: WideString; begin Result := True; S:= TComboBox(FEdit).Text; FTree.Text[FNode, FColumn] := S; FTree.InvalidateNode(FNode); FEdit.Hide; FTree.SetFocus; end; function TStringEditLink.GetBounds: TRect; begin Result := FEdit.BoundsRect; end; function TStringEditLink.PrepareEdit(Tree: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex): Boolean; begin Result := True; FTree := Tree as TVirtualStringTree; FNode := Node; FColumn := Column; FEdit.Free; FEdit := nil; FEdit := TComboBox.Create(nil); with FEdit as TComboBox do begin Visible := False; Parent := Tree; Items.Add('Google'); Items.Add('Yahoo'); Items.Add('Altavista'); OnKeyDown := EditKeyDown; end; end; procedure TStringEditLink.ProcessMessage(var Message: TMessage); begin FEdit.WindowProc(Message); end; procedure TStringEditLink.SetBounds(R: TRect); var Dummy: Integer; begin FTree.Header.Columns.GetColumnBounds(FColumn, Dummy, R.Right); FEdit.BoundsRect := R; end; End.
- After saving the file, on the Form Designer select VST and on Object Inspector's Properties, scroll to TreeOptions -> MiscOptions, set toEditable to True. Then get to TreeOptions -> SelectionOptions, set toExtendedFocus to True.
- Switch to Object Inspector's Events tab. Scroll to OnCreateEditor, double click and paste:
procedure TForm1.VSTCreateEditor(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; out EditLink: IVTEditLink); begin EditLink:=TStringEditLink.Create; end;
- On Object Inspector's Events tab. Scroll to OnNewText, double click and paste:
procedure TForm1.VSTNewText(Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex; NewText: WideString); Var Data: PTreeData; begin Data := VST.GetNodeData(Node); Case Column of 0: Data^.Column0:= NewText; 1: Data^.Column1:= NewText; 2: Data^.Column2:= NewText; End; end;
Run program, select a node and press F2 to get combobox. On pressing Enter new value should appear on the node.
If Cell Editing Can't Be Seen
Open VirtualStringTree.pas unit file (if you are still on the above example project, right click on VirtualStringTree under Uses clause and select Find Declaration. This opens the file on next tab. Go to that file's tab.). Get to the "function TStringEditLink.BeginEdit: Boolean; stdcall;". It looks like:
function TStringEditLink.BeginEdit: Boolean; stdcall; // Notifies the edit link that editing can start now. Descentants may cancel node edit // by returning False. begin Result := not FStopping; if Result then begin FEdit.Show; FEdit.SelectAll; FEdit.SetFocus; end; end;
Now add "FEdit.Height:=18;". It should look like:
function TStringEditLink.BeginEdit: Boolean; stdcall; // Notifies the edit link that editing can start now. Descentants may cancel node edit // by returning False. begin Result := not FStopping; if Result then begin FEdit.Show; FEdit.SelectAll; FEdit.SetFocus; FEdit.Height:=18; // <--- Added this line. end; end;
Save the file (press Ctrl + S). If you are on the example project, close this (Project -> Close Project). Click on Tools -> Configure "Build Lazarus" ... Select Clean Up + Build All and then click on the Build button. After compile Lazarus should be restarted. Now open the example project and try to edit node on VST. This time it should be ok.
Thank you.
--Rabiul 21:37, 20 October 2008 (CEST)
Alhamdulillah.
Programando en Pascal - Spanish tutorial focused on FPC/Lazarus, hosted in Wikibooks.