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winShell.pas
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winShell.pas
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{ CustomMenu
Copyright (C) 2022 Baz Cuda
https://github.com/BazzaCuda/CustomMenu
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
}
unit winShell;
// from https://www.informit.com/articles/article.aspx?p=26940&seqNum=4
interface
uses SysUtils, Windows, Registry, ActiveX, ShlObj;
type
EShellOleError = class(Exception);
TShellLinkInfo = record
targetFile: string;
params: string;
description: string;
workingDir: string;
iconFile: string;
iconIx: integer;
showCmd: integer;
hotKey: WORD;
end;
TSpecialFolderInfo = record
Name: string;
ID: Integer;
end;
const
SpecialFolders: array[0..29] of TSpecialFolderInfo = (
(Name: 'Alt Startup'; ID: CSIDL_ALTSTARTUP),
(Name: 'Application Data'; ID: CSIDL_APPDATA),
(Name: 'Recycle Bin'; ID: CSIDL_BITBUCKET),
(Name: 'Common Alt Startup'; ID: CSIDL_COMMON_ALTSTARTUP),
(Name: 'Common Desktop'; ID: CSIDL_COMMON_DESKTOPDIRECTORY),
(Name: 'Common Favorites'; ID: CSIDL_COMMON_FAVORITES),
(Name: 'Common Programs'; ID: CSIDL_COMMON_PROGRAMS),
(Name: 'Common Start Menu'; ID: CSIDL_COMMON_STARTMENU),
(Name: 'Common Startup'; ID: CSIDL_COMMON_STARTUP),
(Name: 'Controls'; ID: CSIDL_CONTROLS),
(Name: 'Cookies'; ID: CSIDL_COOKIES),
(Name: 'Desktop'; ID: CSIDL_DESKTOP),
(Name: 'Desktop Directory'; ID: CSIDL_DESKTOPDIRECTORY),
(Name: 'Drives'; ID: CSIDL_DRIVES),
(Name: 'Favorites'; ID: CSIDL_FAVORITES),
(Name: 'Fonts'; ID: CSIDL_FONTS),
(Name: 'History'; ID: CSIDL_HISTORY),
(Name: 'Internet'; ID: CSIDL_INTERNET),
(Name: 'Internet Cache'; ID: CSIDL_INTERNET_CACHE),
(Name: 'Network Neighborhood'; ID: CSIDL_NETHOOD),
(Name: 'Network Top'; ID: CSIDL_NETWORK),
(Name: 'Personal'; ID: CSIDL_PERSONAL),
(Name: 'Printers'; ID: CSIDL_PRINTERS),
(Name: 'Printer Links'; ID: CSIDL_PRINTHOOD),
(Name: 'Programs'; ID: CSIDL_PROGRAMS),
(Name: 'Recent Documents'; ID: CSIDL_RECENT),
(Name: 'Send To'; ID: CSIDL_SENDTO),
(Name: 'Start Menu'; ID: CSIDL_STARTMENU),
(Name: 'Startup'; ID: CSIDL_STARTUP),
(Name: 'Templates'; ID: CSIDL_TEMPLATES));
function CreateShellLink(const AppName, Desc: string; Dest: Integer): string;
function GetSpecialFolderPath(Folder: Integer; CanCreate: Boolean): string;
procedure GetShellLinkInfo(const LinkFile: WideString; var SLI: TShellLinkInfo);
procedure SetShellLinkInfo(const LinkFile: WideString; const SLI: TShellLinkInfo);
implementation
uses ComObj;
function GetSpecialFolderPath(Folder: Integer; CanCreate: Boolean): string;
var FilePath: array[0..MAX_PATH] of char;
begin
{ Get path of selected location }
SHGetSpecialFolderPathW(0, FilePath, Folder, CanCreate);
Result := FilePath;
end;
function CreateShellLink(const AppName, Desc: string; Dest: Integer): string;
{ Creates a shell link for application or document specified in }
{ AppName with description Desc. Link will be located in folder }
{ specified by Dest, which is one of the string constants shown }
{ at the top of this unit. Returns the full path name of the }
{ link file. }
var
SL: IShellLink;
PF: IPersistFile;
LnkName: WideString;
begin
OleCheck(CoCreateInstance(CLSID_ShellLink, nil, CLSCTX_INPROC_SERVER,
IShellLink, SL));
{ The IShellLink implementer must also support the IPersistFile }
{ interface. Get an interface pointer to it. }
PF := SL as IPersistFile;
OleCheck(SL.SetPath(PChar(AppName))); // set link path to proper file
if Desc <> '' then OleCheck(SL.SetDescription(PChar(Desc))); // set description
{ create a path location and filename for link file }
LnkName := GetSpecialFolderPath(Dest, True) + '\' + ChangeFileExt(AppName, 'lnk');
PF.Save(PWideChar(LnkName), True); // save link file
Result := LnkName;
end;
procedure GetShellLinkInfo(const LinkFile: WideString;
var SLI: TShellLinkInfo);
{ Retrieves information on an existing shell link }
var
SL: IShellLink;
PF: IPersistFile;
FindData: TWin32FindData;
AStr: array[0..MAX_PATH] of char;
begin
OleCheck(CoCreateInstance(CLSID_ShellLink, nil, CLSCTX_INPROC_SERVER,
IShellLink, SL));
{ The IShellLink implementer must also support the IPersistFile }
{ interface. Get an interface pointer to it. }
PF := SL as IPersistFile;
{ Load file into IPersistFile object }
OleCheck(PF.Load(PWideChar(LinkFile), STGM_READ));
{ Resolve the link by calling the Resolve interface function. }
OleCheck(SL.Resolve(0, SLR_ANY_MATCH or SLR_NO_UI));
{ Get all the info! }
with SLI do begin
OleCheck(SL.GetPath(AStr, MAX_PATH, FindData, SLGP_SHORTPATH));
targetFile := AStr;
OleCheck(SL.GetArguments(AStr, MAX_PATH));
params := AStr;
OleCheck(SL.GetDescription(AStr, MAX_PATH));
Description := AStr;
OleCheck(SL.GetWorkingDirectory(AStr, MAX_PATH));
workingDir := AStr;
OleCheck(SL.GetIconLocation(AStr, MAX_PATH, iconIx));
iconFile := AStr;
OleCheck(SL.GetShowCmd(ShowCmd)); case showCmd = 7 of TRUE: showCmd := 2; end;
OleCheck(SL.GetHotKey(HotKey));
end;
end;
procedure SetShellLinkInfo(const LinkFile: WideString; const SLI: TShellLinkInfo);
{ Sets information for an existing shell link }
var
SL: IShellLink;
PF: IPersistFile;
begin
OleCheck(CoCreateInstance(CLSID_ShellLink, nil, CLSCTX_INPROC_SERVER,
IShellLink, SL));
{ The IShellLink implementer must also support the IPersistFile }
{ interface. Get an interface pointer to it. }
PF := SL as IPersistFile;
{ Load file into IPersistFile object }
OleCheck(PF.Load(PWideChar(LinkFile), STGM_SHARE_DENY_WRITE));
{ Resolve the link by calling the Resolve interface function. }
OleCheck(SL.Resolve(0, SLR_ANY_MATCH or SLR_UPDATE or SLR_NO_UI));
{ Set all the info! }
with SLI, SL do begin
OleCheck(SetPath(PChar(targetFile)));
OleCheck(SetArguments(PChar(params)));
OleCheck(SetDescription(PChar(description)));
OleCheck(SetWorkingDirectory(PChar(workingDir)));
OleCheck(SetIconLocation(PChar(iconFile), iconIx));
OleCheck(SetShowCmd(ShowCmd));
OleCheck(SetHotKey(HotKey));
end;
PF.Save(PWideChar(LinkFile), True); // save file
end;
end.