[Geoff Bacon]

Hi Mike

Sounds as though you are doing the form sizing in the OnShow or as an "after show" event.

The way I handle the sizing is to call my RestoreWindowPlacement routine in the FormCreate event.

Obviously, for this to work, you need to save the necessary screen settings in your FormClose event!

My code is in Delphi but I'm sure you can work it out/adapt to suit your code.

Cheers
Geoff

Code:

// The Prefix is so that I can use the routine to restore any form (and not just the main one).
// The routine does nothing if any of the registry values are invalid i.e. the program will use the form design values
// UsePPI is an input and allows you to ignore the settings if the screen resolution has changed

procedure TMainForm.RestoreWindowPlacement( AForm: TForm; Const Prefix: string; UsePPI: boolean);
Var
  bad: boolean;

  function ReadInteger( Name: string; Max: integer): integer;
  var
    str: string;
  begin
    str:= DataManager.GetKeyedString( Name );  // this is just getting a value from the registry (I use a .ini file)
    if IsNumeric( str, 0, Max) then
      Result:= StrToInt( str ) else
    begin
      bad:= true;
      Result:= -1;
    end;
  end;
Var
  Rect: TRect;
  FullScreen: integer;
  OldPPI : integer;
begin
  bad:= false;
  Rect.Top     := ReadInteger( Prefix + 'Top'      , Screen.WorkAreaHeight );  // args are "registry name", "screen variable"
  Rect.Left    := ReadInteger( Prefix + 'Left'     , Screen.WorkAreaWidth  );
  Rect.Bottom  := ReadInteger( Prefix + 'Height'   , Screen.WorkAreaHeight );
  Rect.Right   := ReadInteger( Prefix + 'Width'    , Screen.WorkAreaWidth  );
  if (AForm.BorderIcons - [biMinimize, biMaximize] ) <> AForm.BorderIcons then
    FullScreen := ReadInteger( Prefix + 'Maximized', 1 ) else
    FullScreen := 0;
  if usePPI then
    OldPPI     := ReadInteger( Prefix + 'PixelsPerInch', 999) else
    OldPPI     := PixelsPerInch;

  if bad or (OldPPI <> PixelsPerInch) then
    exit;

  Rect.Bottom  := Rect.Bottom + Rect.Top;
  Rect.Right   := Rect.Right  + Rect.Left;

  // Make sure the window is entirely visible on the screen
  if (Rect.Right > Screen.WorkAreaWidth) then begin
    Dec(Rect.Left, (Rect.Right - Screen.WorkAreaWidth));
    Rect.Right := Screen.WorkAreaWidth;
  end;
  if (Rect.Bottom > Screen.WorkAreaHeight) then begin
    Dec(Rect.Top, (Rect.Bottom - Screen.WorkAreaHeight));
    Rect.Bottom := Screen.WorkAreaHeight;
  end;

  AForm.BoundsRect := Rect;

  if FullScreen=1 then
    AForm.WindowState := wsMaximized;
end;