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Open My Computer

Posted on 2002-07-26
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Last Modified: 2010-04-04
How do i run My Computer?
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Question by:easysoft_studios
7 Comments
 
LVL 1

Expert Comment

by:PeterZG
ID: 7181363
?
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Author Comment

by:easysoft_studios
ID: 7181366
Like then you click at the My Computer icon on the desktop.
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Expert Comment

by:PeterZG
ID: 7181395
do you want to simulate clicking the icon (shortcut) or open it within your own application?
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LVL 9

Expert Comment

by:ginsonic
ID: 7181569
uses ShellApi,ShlObj;

procedure TForm1.Button1Click(Sender: TObject);
var
   PIDL:PItemIDList;
   Info:TShellExecuteInfo;
   pInfo:PShellExecuteInfo;
   WaitCode:DWord;
begin
   SHGetSpecialFolderLocation(Handle,CSIDL_DRIVES,PIDL);
   pInfo:=@Info;
   With Info do begin
    cbSize:=SizeOf(Info);
    fMask:=SEE_MASK_NOCLOSEPROCESS+SEE_MASK_IDLIST;
    wnd:=Handle;
    lpVerb:=nil;
    lpFile:=nil;
    lpParameters:=nil;
    lpDirectory:=nil;
    nShow:=SW_ShowNormal;
    hInstApp:=0;
    lpIDList:=PIDL;
   end;
   ShellExecuteEx(pInfo);
   repeat
    WaitCode := WaitForSingleObject(Info.hProcess,500);
    Application.ProcessMessages;
   until (WaitCode <> WAIT_TIMEOUT);
end;

 
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LVL 2

Expert Comment

by:Tasomia
ID: 7181653
uses ShellApi, ShlObj, ActiveX;

procedure TForm1.Button1Click(Sender: TObject);
var
  PIDL: PItemIDList;
  Info: TShellExecuteInfo;
  pInfo: PShellExecuteInfo;
  WaitCode: DWORD;
  Allocator: IMalloc;
begin
  if SHGetMalloc(Allocator) = NOERROR then
  begin
    SHGetSpecialFolderLocation(Handle, CSIDL_DRIVES, PIDL);
    Allocator.Free(PIDL);
    pInfo := @Info;
    ZeroMemory(@Info, SizeOf(Info));
    with Info do
    begin
      cbSize := SizeOf(Info);
      fMask := SEE_MASK_NOCLOSEPROCESS + SEE_MASK_IDLIST;
      wnd := Handle;
      lpVerb := nil;
      lpFile := nil;
      lpParameters := nil;
      lpDirectory := nil;
      nShow := SW_SHOWNORMAL;
      hInstApp := 0;
      lpIDList := PIDL;
    end;
    ShellExecuteEx(pInfo);
    repeat
      WaitCode := WaitForSingleObject(Info.hProcess, 500);
      Application.ProcessMessages;
    until (WaitCode <> WAIT_TIMEOUT);
  end;
end;
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LVL 20

Accepted Solution

by:
Madshi earned 150 total points
ID: 7181674
ginsonic's code doesn't free the pidl -> memory leak!

Tasomia's code does free the pidl, but too early, you're freeing it before it is actually used.

This one works fine on my XP, didn't test it under other OSs, though:

  WinExec('explorer.exe ::{20D04FE0-3AEA-1069-A2D8-08002B30309D}', SW_SHOWNORMAL);

Regards, Madshi.
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Author Comment

by:easysoft_studios
ID: 7181913
I it supposed to work on XP, so Madshi's lookes fine. I'll return when i'm sitting with my IDE running :)
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