Problems / UI / Dialog Set MinSize

[Petr Schreiber]

Hi Eros,

I found inconsistency between docs and manifested behaviour.
Docs say DIALOG SET MINSIZE "Set the dialog minimum width and height client area.".
But I suspect it is not client area, but complete window size.

Consider following code:
[code=thinbasic]
USES "UI"

DIM hDlg AS DWORD

DIALOG NEW 0, "Minsizer",1,1, 10, 10, _
%WS_POPUP Or %WS_VISIBLE Or _
%WS_CLIPCHILDREN Or %WS_CAPTION OR _
%WS_SYSMENU Or %WS_MINIMIZEBOX or %WS_THICKFRAME, 0 To hDlg



dialog set client hDlg, 400,300 ' <-- with this I can get it smaller ( should not be possible )
'dialog set size hDlg, 400,300 ' <-- with this I cannot
dialog set minsize hDlg, 400,300

DIALOG SHOW MODal hDlg, call DlgProc

DIALOG End hDlg

callback function DlgProc() as long

end function
[/code]

If MINSIZE would be client related, the window could not be made a bit smaller ... but it can be.


Petr

P.S. I think this is the earliest / latest time I ever posted bug description, time to prepare small celebration

[ErosOlmi]

Yes, it is a documentation error.
In reality DIALOG SET MINSIZE ... is used to store info and later handle %WM_GETMINMAXINFO notification: http://msdn.microsoft.com/en-us/library/ms632626(VS.85).aspx
As I can see there, it talks about windows size and not window client area.

I will change thinBasic help file.

Thanks
Eros

[ErosOlmi]

Next preview refresh will have the following new behave/feature:

• dialog set minsize ...
  to set the min width/height window size
  
• dialog set minclientsize ...
  to set the min width/height client size

Thanks for testing.
Eros

[Petr Schreiber]

Hi Eros,

in the latest version, DIALOG SET MINCLIENTSIZE works ok, but DIALOG SET MINSIZE still does not work, following dialog can be made a bit smaller.

[code=thinbasic]
USES "UI"

DIM hDlg AS DWORD

DIALOG NEW 0, "Minsizer",1,1, 400, 300, _
%WS_POPUP Or %WS_VISIBLE Or _
%WS_CLIPCHILDREN Or %WS_CAPTION OR _
%WS_SYSMENU Or %WS_MINIMIZEBOX or %WS_THICKFRAME, 0 To hDlg

dialog set minsize hDlg, 400,300

DIALOG SHOW MODal hDlg, call DlgProc

DIALOG End hDlg

callback function DlgProc() as long

end function
[/code]


Thanks,
Petr

[ErosOlmi]

Petr,

I think it is in reality working fine. The problem is that when the new window is specified having

If the dialog style includes the %WS_CAPTION style, the width and height parameters specify the client size, not including the caption and border size.
If the style does not include %WS_CAPTION, the width and height specify the overall dialog size, including the caption and border, if any.
But this is not documented.

I will see how to arrange it is such a way it is clear how to use. Maybe I will change something in DIALOG NEW to check if %WS_CAPTION style is present and act according.

Thanks
Eros

[ErosOlmi]

Ok, I think I've got a good compromise.
DIALOG SET MINSIZE will check if client size is different than window size and make the relevant changes to min/max parameters.

Attached a corrected UI modue.

Ciao
Eros

[Petr Schreiber]

Thanks Eros,

I am sorry, I should study API more to know the trick with ws_caption.
But it is working great now, thanks .


Petr