Back to Dos

Hi all
I have written a windows application that is executed with command line from a full size Dos window.
My problem is that when the application is finished it doesn't get back to Dos.
I tried using :
  FParentHWND := GetParent(Handle);
  ShowWindow(FParentHWND, SW_RESTORE);
  SetActiveWindow(FParentHWND);

but with no luck ??!!
dotanAsked:
Who is Participating?
 
williams2Connect With a Mentor Commented:
Ok! ..dotan got very close, but it's not explicitely right. If you go and select another window before exiting the application, you will find, that the last active window will get the focus, and get maximized instead.

But a few changes solved it, and it both works in Windows 95,98 and NT.

I don't know if dotan should have some of the credits for this, for this is build on his idea:

Try paste this on unit1 on a new project, and then run it from a fullscreen DOS-window:

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs;

type
  TForm1 = class(TForm)
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;
  FParenWin: THandle;

implementation

{$R *.DFM}

Initialization
  FParenWin :=  GetForegroundWindow;
Finalization
  SetForegroundWindow(FParenWin);
  SetActiveWindow(FParenWin);
  ShowWindow(FParenWin, SW_MAXIMIZE);
end.

This will work, no matter what you are going to select in the desktop afterwards (Thanks to dotan), except in one case: If you close the DOS-window, nothing will happen!

Cheers,
Williams
0
 
dotanAuthor Commented:
Edited text of question
0
 
ronit051397Commented:
Try SetForegroundWindow
0
Receive 1:1 tech help

Solve your biggest tech problems alongside global tech experts with 1:1 help.

 
AleqCommented:
Well, you must find handle of that dos window.
Use findwindow (See Win32 help)
than just call ShowWIndow(<FOUND_HANDLE,....)
It will work....
0
 
viktornetCommented:
var
  H : HWND;
  buf : array[0..MAX_PATH] of char;
  str : string;
begin
  GetWindowText(buf);
  str := StrPas(buf);
  if Pos(str, 'MS-DOS') > 0 then begin
    H := FindWindow(nil, str);
    SetForegroundWindow(H);
  end;
end;

Cheers,
Viktor
0
 
dotanAuthor Commented:
TNQ all for your comments and answer but.........
Since there can be several MS-DOS windows open at the same time i have to know which one made the call and i can't just look for the first one like "FindWindow" does.
Any other ideas ????
0
 
viktornetCommented:
What's the name of your DOS program...if it is TC for example you can look for  MS-DOS TC as a caption...

Cheers,
Viktor
0
 
dotanAuthor Commented:
It can be one of many...........and there is no way to know
0
 
viktornetCommented:
Nope... The caption would be "MS-DOS ExenameWithoutAnExtension" w/o the quotes when run in Windows...

Cheers,
Viktor
0
 
dotanAuthor Commented:
Hi all
Just for the record here is how i solved this:

constructor xxx.yyy;
bagin
  FParenWin :=  GetForegroundWindow;
  .....
end;

destructor xxx.yyy;
begin
  .......
  ShowWindow(FParenWin, SW_MAXIMIZE);  
end;
0
 
williams2Commented:
You say you are writing an windows application from a Fullsize window? But are you using any forms?

If not, then forget all those hacks, it is easily done without.

To make a commandline executable, you'll need to go to the Mainmenu selecting Project->Options->Linker and select
the "Generate console application".

Thereafter, you will need to remove unit1 from the project.
You will then need to add a new Unit. You can write procedures and functions as usual, but you will need to add..

Initialization
  Main;

right before the 'end.' command, supposing that Main is the main procedure in the program. If you will need to add forms to your application, you should not worry about getting back to DOS, visual windows applications simply doesn't do that in generel.

Am I wrong?

Regards,
Williams
0
 
dotanAuthor Commented:
Sorry Williams but this is not the case.
My application is a windows application and could not run as a console application.
The problem was that it can be executed from a dos window and in that case i whanted the focus to reuren to the dos window even if it was full sized.
0
 
williams2Commented:
Hmmm.. dotan, I forgot, that it's actually you who did ask the question hehe.

Cheers,
Williams
0
 
dotanAuthor Commented:
TNQ all
0
 
williams2Commented:
You are always welcome :-)

Regards,
Williams
0
All Courses

From novice to tech pro — start learning today.