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Posted on 1997-11-20
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Last Modified: 2010-04-04
I would like to make the URL in my about box clickable (hot-link) so it will open in a browser. I am running D1 and would like to implement this with a minimum investment in new tools. Any pointers would be much appreciated.

Thanks, Tom.
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Question by:boardtc
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4 Comments
 
LVL 8

Accepted Solution

by:
ZifNab earned 200 total points
ID: 1351114
Also a lot of good FREEWARE components on the market.

Use these, they are already made. If not try this one. Or just use the pieces of code you need.

unit LinkLabel;

{*******************************************************}
{                                                       }
{       Delphi Visual Component Library                 }
{                                                       }
{       Copyright € 1996-97 Vitaly Zayko                }
{                                                       }
{                   TLinkLabel                          }
{                                                       }
{*******************************************************}

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, StdCtrls, ShellAPI,
  Forms;

const
     URLCursor = 1;

type
  TLinkLabel = class(TCustomLabel)
  private
    FLinkColor:TColor;
    FLinkTo:String;
    procedure SetLinkColor(Value:TColor);
  protected
    procedure WMClick(var Msg:TMessage); message WM_LBUTTONDOWN;
  public
    constructor Create(AOwner:TComponent);override;
    destructor Destroy;override;
  published
    property Caption;
    property Font;
    property Color;
    property Visible;
    property ShowHint;
    property AutoSize;
    property WordWrap;
    property Align;
    property Alignment;
    property Enabled;
    property Transparent;
    property LinkColor:TColor read FLinkColor write SetLinkColor
      default clBlue;
    property LinkTo: String read FLinkTo write FLinkTo;
  end;

procedure Register;

implementation

constructor TLinkLabel.Create(AOwner:TComponent);
var
   WinSys:Array [0..255] of Char;
begin
     inherited Create(AOwner);
     Font.Style:=[fsUnderline];
     Font.Color:=clBlue;
     FLinkColor:=clBlue;
     GetSystemDirectory(WinSys,sizeof(WinSys));
     Screen.Cursors[URLCursor]:=LoadCursor(LoadLibrary(StrCopy(WinSys,
       PChar('hlp95en.dll'))),MakeIntResource(100));
     Cursor:=URLCursor;
end;

destructor TLinkLabel.Destroy;
begin
     Font.Style:=[];
     inherited Destroy;
end;

procedure TLinkLabel.SetLinkColor(Value:TColor);
begin
     FLinkColor:=Value;
     Font.Color:=Value;
     Refresh;
end;

procedure TLinkLabel.WMClick(var Msg:TMessage);
begin
     ShellExecute(GetDesktopWindow,'open',PChar(FLinkTo),nil,nil,
       SW_SHOWNORMAL);
end;

procedure Register;
begin
  RegisterComponents('Additional', [TLinkLabel]);
end;

end.

Have fun,
c.u. ZifNab;
0
 

Author Comment

by:boardtc
ID: 1351115
Zifnab,

I'll have to look through the code to see how it works. I'll take your word for it. Thanks a lot, Tom.
0
 
LVL 8

Expert Comment

by:ZifNab
ID: 1351116
Hello?
Problem solved?
If not this component should help you:
http://torry.rimini.com/vcl/internet/murl.zip
Have fun,
c.u. ZifNab;
0
 

Author Comment

by:boardtc
ID: 1351117
I tried this one also. First dcu version error, the the windows dcu error, then resource file format error .dcr. I e-mailed the author to se if he had a D1 version or do you know? Thanks, Tom.
0

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