Modal Form in fullscreen program PROBLEM
lazarus / 32-Linux

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kevinspencer33 · 2011-01-14 14:34

I've mading a program that run in fullscreen mode using
Code: [Select]gdk_window_fullscreen(PGtkWidget(Handle)^.window)
but, if I try to show a modal form,  the panel of the OS is shown.

Here you have an screen capture:

http://dl.dropbox.com/u/12475647/Captura-6.png

Some one know how to solve this problem?

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Sora-Kun · 2011-01-14 15:13

Hi,
I have no Idea about the error, but I have another tip to show your
app on a full-screen mod,
just copy-paste the following code on your program, exactly on the
body of the procedure which will turn on/off full-screen mod:

Code: [Select]{$J+} //writeable constants on
const
  rect: TRect = (Left:0; Top:0; Right:0; Bottom:0);
  ws : TWindowState = wsNormal;
{$J-} //writeable constants off
var
  r : TRect;
begin
  if BorderStyle <> bsNone then
  begin
    ws := WindowState;
    rect := BoundsRect;

    BorderStyle := bsNone;
    r := Screen.MonitorFromWindow(Handle).BoundsRect;
    SetBounds(r.Left, r.Top, r.Right-r.Left, r.Bottom-r.Top) ;
  end
  else
  begin
    BorderStyle := bsSizeable;.
    if ws = wsMaximized then
      WindowState := wsMaximized
    else
      SetBounds(rect.Left, rect.Top, rect.Right-rect.Left,
rect.Bottom-rect.Top) ;
  end;
end; Hope this will help you, I took it from
http://delphi.about.com/od/delphitips2010/qt/delphi-application-full-
screen-mode-f11.htm
Good luck
LinkOS

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Chronos · 2011-01-14 15:24

Here is summarization wiki page about full screen application mode:
http://wiki.freepascal.org/Application_full_screen_mode

You can add additional useful information..

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kevinspencer33 · 2011-01-15 12:06

@Linkos: this code don't work well under Gnome... so I used the gtk
method.
@Chronos: The code that I used is taken directly from this page.

Anyway, I decided to don't use modal forms in my app.

But this problem it's still a bug from Gnome or Lazarus... I don't
know why but I think it may be a Gnome limitation...

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cpicanco · 2017-10-18 18:13

Anything new about that?

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zeljko · 2017-10-18 19:18

it's problem with window managers. Try qt app under kwin (kde) and
you'll see that everything works as expected, but same qt app under
metacity or any other wm can have strange behaviour.