Solved

Execute explorer.exe ????

Posted on 1999-01-20
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Last Modified: 2008-02-20
Hi,
I made my program to the windows explorer (system.ini
shell=myprogram.exe) how can my program start the explorer ?
shellexecute (... c:\windows\explorer.exe ...) starts the
filemanager ! Is there a parameter required ???
0
Comment
Question by:ItsMe
11 Comments
 
LVL 3

Expert Comment

by:Ronald Buster
ID: 1362508
Hi Itsme,

Try this code hope it helps

regards,

Cono

<-------------------------------->

WinExec32('c:\windows\explorer.exe',0);

<-------------------------------->

function WinExec32(Filename:string; Visibility:integer) : integer;
var zAppName: array[0..512] of char;
    zCurDir : array[0..255] of char;
    Workdir : string;
    StartUpInfo : TStartUpInfo;
    ProcessInfo : TProcessInformation;
begin
  StrPCopy(zAppName,FileName);
  GetDir(0,Workdir);
  StrPCopy(zCurDir,Workdir);
  FillChar(StartUpInfo,SizeOf(StartUpInfo),#0);
  StartUpInfo.cb := SizeOf(StartUpInfo);
  StartUpInfo.dwFlags := STARTF_USESHOWWINDOW;
  StartUpInfo.wShowWindow := Visibility;

  if not CreateProcess(nil,zAppName,nil,nil,false,
                       CREATE_NEW_CONSOLE or
                       NORMAL_PRIORITY_CLASS,
                       nil,nil,StartUpInfo,
                       ProcessInfo) then
    Result := -1
  else
    begin
//      WaitForSingleObject(ProcessInfo.hProcess,INFINITE);
      GetExitCodeProcess(ProcessInfo.hProcess,Result);
    end;
end;
0
 
LVL 20

Expert Comment

by:Madshi
ID: 1362509
ItsMe, cono's answer won't help you.
You must do this:
(1) Set "shell=Explorer.Exe"
(2) Start Explorer.exe
(3) Wait, until it is completely started
(3) Set "shell=C:\YourPath\YourProgram.exe"

Regards, Madshi.
0
 

Author Comment

by:ItsMe
ID: 1362510
Madshi,
I want to write a login software which starts the explorer when
the login was correct. It wouldn't help me to start the explorer
first because nobody is allowed to access it during the time
my program is running. My program will change different system
settings after login and then starts explorer.exe but explorer
starts as fileman I guess there is a parameter ? Or must I only change the system.ini entry to explorer.exe before I start it ?

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LVL 20

Expert Comment

by:Madshi
ID: 1362511
>> Or must I only change the system.ini entry to explorer.exe before I start it ?

You got it. That's what I tried to tell you with my last comment.

Regards, Madshi.
0
 

Author Comment

by:ItsMe
ID: 1362512
Super, it works ! You've answered the question Madshi.
Please answer it (:-)
0
 
LVL 20

Accepted Solution

by:
Madshi earned 10 total points
ID: 1362513
Thank you...   :-)
0
 

Expert Comment

by:silvamv
ID: 4622363
why this code does not work ?

procedure TForm1.Button1Click(Sender: TObject);
begin
  WritePrivateProfileString('boot','shell','explorer.exe','system.ini');  // flush ini
  WritePrivateProfileString(nil,nil,nil,'system.ini');  // flush ini
  shellexecute(0,nil,'explorer.exe',nil,nil,sw_show);
//  WritePrivateProfileString('boot','shell','myshell.exe','system.ini');  // flush ini
end;
0
 

Author Comment

by:ItsMe
ID: 4623403
hi silvamv,
perhaps you should give the whole path to shellexecute ? btw. what exactly doesn't work / what happens ?

regards
ItsMe
0
 
LVL 20

Expert Comment

by:Madshi
ID: 4626258
It should work without the path. But you need to wait until the explorer is fully loaded before you switch the shell setting back. Use one of this possibilities:

(1) Use CreateProcess instead of ShellExecute, then WaitForInputIdle(processInfo.hProcess). And don't forget to close the handles afterwards.
(2) Wait until the tray window is visible (IsWindowVisible(FindWindow('Shell_TrayWnd', ''));).

Regards, Madshi.
0
 

Expert Comment

by:mvsilva
ID: 4628183
Madshi, could you give a sample ? How I use CreateProcess to do it ?
Thank's a lot.
0
 
LVL 20

Expert Comment

by:Madshi
ID: 4628343
Oh no, please. Can't you figure that out yourself? If not, please ask a new question. Look, this question had only 10 points. Now you want even additional help from me for the same 10 points I got from ItsMe...
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