How to use explorer context for your tool
Printed From: Debenu Quick PDF Library - PDF SDK Community Forum
Category: For Users of the Library
Forum Name: Sample Code
Forum Description: Share Debenu Quick PDF Library sample code with other forum members
URL: http://www.quickpdf.org/forum/forum_posts.asp?TID=2457
Printed Date: 03 May 24 at 8:39AM
Software Version: Web Wiz Forums 11.01 - http://www.webwizforums.com
Topic: How to use explorer context for your tool
Posted By: Ingo
Subject: How to use explorer context for your tool
Date Posted: 17 Nov 12 at 1:29PM
Hi!
I can answer regarding Delphi/Pascal.
First i give you the needed functions and at the end you'll find code how to use it.
Don't forget ShlObj and Registry in the usage section.
function RegisterFileAssociation( FileAssocInfo : TFileAssocInfo):boolean;
{-----------------------------------------------------}
function IsEmptyString(const S: string): boolean;
begin
Result := ( S = '' );
end;
{-----------------------------------------------------}
function AssebleOpenCmd(OpenCmd, AppPath:string):string;
begin
OpenCmd := Trim(OpenCmd);
if not IsEmptyString(OpenCmd) then OpenCmd := OpenCmd + ' ';
Result := AppPath + ' ' + OpenCmd + '%1';
end;
{-----------------------------------------------------}
var
S : string;
begin
Result := False;
with FileAssocInfo do
begin
if IsEmptyString(AppPath) then Exit;
if IsEmptyString(Extension) then Exit;
if Length(Extension) > 3 then raise Exception.Create('Too long extension');
if IsEmptyString(Key) then Exit;
if IsEmptyString(Description) then Exit;
if AddLocalMenu and IsEmptyString(MenuString) then Exit;
Extension := '.' + Extension;
{ write... }
with TRegIniFile.Create('') do
try
RootKey := HKEY_CLASSES_ROOT;
{ write the extension - the Key points to description registy key}
WriteString(Extension, '', Key);
{ write the description key }
WriteString(Key, '', Description);
{ write the default icon if defined }
if not IsEmptyString(Icon) then WriteString(Key + '\DefaultIcon','',Icon);
{ write the OpenCmd - association }
OpenCmd := AssebleOpenCmd(OpenCmd, AppPath);
WriteString(Key + '\shell\open\command', '', OpenCmd );
{ add the Explorer local menu item }
if AddLocalMenu
then
begin
S := Key + '\shell\' + 'Local_Menu';
WriteString(S, '', MenuString);
S := Key + '\shell\' + 'Local_Menu' + '\command';
WriteString(S, '', OpenCmd);
end;
finally
CloseKey;
Free;
end;
end;
Result := True;
end;
procedure DeleteFileAssociation(Extension, Key:string);
begin
with TRegIniFile.Create('') do
try
RootKey := HKEY_CLASSES_ROOT;
EraseSection('.' + Extension);
EraseSection(Key);
finally
CloseKey;
Free;
end;
end;
procedure CreateSendToShortcut;
var
UK : IUnknown;
ShLnk : IShellLink;
PF: IPersistFile;
Shortcut: string;
pIDL :pItemIDList;
Buffer: array[0..MAX_PATH]of char;
Malloc: IMalloc;
begin
SHGetSpecialFolderLocation(0, CSIDL_SENDTO, pidl);
ShGetPathFromIdList(pIDL, PChar(@Buffer));
Shortcut:= Buffer;
OLECheck(SHGetMalloc(Malloc));
if pidl <> nil then Malloc.Free(pIDL);
Shortcut:=Shortcut+'\'+Application.Title+'.lnk';
CoInitialize(nil);
UK := CreateComObject(CLSID_ShellLink);
ShLnk := UK as IShellLink;
PF := UK as IPersistFile;
ShLnk.SetPath(pChar(Application.ExeName));
PF.Save(PWChar(WideString(Shortcut)), False);
CoUninitialize;
end;
// ------------------------------
// How to set your item directly into the explorer-context:
// anywhere via buttonclick or anything else...
with FileAssocInfo do
begin
AppPath := Application.ExeName;
Extension := 'PDF';
Key := 'Your:tool_name';
Description := 'PDF Your_tool_name';
AddLocalMenu := True;
MenuString := 'working with my pdf-tool!';
OpenCmd := '';
Icon := '';
end;
RegisterFileAssociation(FileAssocInfo);
// How to remove your item from the explorer-context:
// anywhere via buttonclick or anything else...
DeleteFileAssociation('PDF', 'Your_tool_name');
// How to insert your item directly into the explorer-context:
// anywhere via buttonclick or anything else...
CreateSendToShortcut;
// How to remove your send-to-item from the explorer-context:
// anywhere via buttonclick or anything else...
filename := Application.Title+'.lnk';
SHGetSpecialFolderLocation(Form1.Handle, CSIDL_SENDTO, SFolder);
SHGetPathFromIDList(SFolder, SpecialPath);
deletefile(strpas(Specialpath)+'\'+ filename);
Cheers Ingo
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Replies:
Posted By: delphiide
Date Posted: 06 Mar 15 at 9:58PM
for more pro, you can use ShellPlus components
-------------
...
Delphi IDE Blog!
http://delphiide.blogspot.com
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