mirror of
https://gitlab.com/freepascal.org/lazarus/lazarus.git
synced 2025-05-03 01:04:38 +02:00
100 lines
2.0 KiB
ObjectPascal
100 lines
2.0 KiB
ObjectPascal
unit HelpConnectionUnit1;
|
|
|
|
{$mode objfpc}{$H+}
|
|
|
|
interface
|
|
|
|
uses
|
|
Classes, SysUtils, LResources, Forms, Controls, Graphics, Dialogs, LHelpControl,
|
|
Buttons, StdCtrls, LazFileUtils;
|
|
|
|
const
|
|
IPCFile = 'letstestagain';
|
|
type
|
|
|
|
{ TForm1 }
|
|
|
|
TForm1 = class(TForm)
|
|
Button1: TButton;
|
|
Label1: TLabel;
|
|
OpenDialog1: TOpenDialog;
|
|
procedure Button1Click(Sender: TObject);
|
|
procedure FormCreate(Sender: TObject);
|
|
procedure FormDestroy(Sender: TObject);
|
|
private
|
|
public
|
|
function GetLHelpFilename: string;
|
|
end;
|
|
|
|
var
|
|
Form1: TForm1;
|
|
Help: TLHelpConnection;
|
|
|
|
implementation
|
|
|
|
{ TForm1 }
|
|
|
|
function ResponseToString(Ares: TLHelpResponse): String;
|
|
begin
|
|
case Ares of
|
|
srNoAnswer: Result := 'NoAnswer';
|
|
srSuccess: Result := 'Success';
|
|
srInvalidFile: Result := 'InvalidFileName';
|
|
srInvalidURL: Result := 'InvalidURL';
|
|
srInvalidContext: Result := 'InvalidContext';
|
|
end;
|
|
end;
|
|
|
|
procedure TForm1.Button1Click(Sender: TObject);
|
|
var
|
|
Res: TLHelpResponse;
|
|
begin
|
|
OpenDialog1.InitialDir:=GetCurrentDirUTF8;
|
|
if not OpenDialog1.Execute then exit;
|
|
Screen.BeginWaitCursor;
|
|
try
|
|
if Help.ServerRunning = false then
|
|
Help.StartHelpServer(IPCFile, GetLHelpFilename);
|
|
Res := Help.OpenFile(OpenDialog1.FileName);
|
|
finally
|
|
Screen.EndWaitCursor;
|
|
end;
|
|
Label1.Caption := ResponseToString(Res);
|
|
end;
|
|
|
|
procedure TForm1.FormCreate(Sender: TObject);
|
|
var
|
|
LHelp: String;
|
|
begin
|
|
{$IFDEF Unix}
|
|
DeleteFile('/tmp/'+IPCFile);
|
|
{$ENDIF}
|
|
LHelp := GetLHelpFilename;
|
|
if not FileExistsUTF8(LHelp) then
|
|
MessageDlg('Missing lhelp','Can not find the lhelp application "'+LHelp+'"',
|
|
mtError,[mbOk],0);
|
|
Help := TLHelpConnection.Create;
|
|
Help.ProcessWhileWaiting := @Application.ProcessMessages;
|
|
end;
|
|
|
|
procedure TForm1.FormDestroy(Sender: TObject);
|
|
begin
|
|
Help.Free;
|
|
end;
|
|
|
|
function TForm1.GetLHelpFilename: string;
|
|
begin
|
|
Result := '../lhelp/lhelp';
|
|
{$IFDEF Windows}
|
|
Result := '..\lhelp\lhelp.exe';
|
|
{$ENDIF}
|
|
{$IFDEF darwin} //OS X
|
|
Result:=Result+'.app/Contents/MacOS/'+ExtractFilename(Result);
|
|
{$ENDIF}
|
|
end;
|
|
|
|
{$R *.lfm}
|
|
|
|
end.
|
|
|