Re: [DUG] Detecting change in screen size

2011-08-16 Thread Rohit Gupta
Laurence,

I think the message is sent only when the resolution changes, not the 
size of the window.

Rohit

On 15/08/2011 3:05 p.m., Laurence Bevan wrote:
> Hi,
>
> I'm trying to detect a change in the client screen size on a Windows tablet.
> The tablet comes bundled with a toolbar application which displays along the
> left side of the screen which the user can hide or display by clicking in
> the taskbar area (not a particularly useful tool but users love it!!). This
> cuts down the width of the screen area by about 30 pixels depending on the
> resolution. I want my application to grow (or shrink) in size when they
> hide/display the toolbar.
>
> I'm using the following  code below in D7:
>
> private
>  procedure WMDisplayChange(var Message:TMessage) ; message
> WM_DISPLAYCHANGE;
> ...
>
> procedure TMainForm.WMDisplayChange(var Message: TMessage) ;
>   begin
>  ShowMessage('Change in display size detected!') ;
>  inherited;
>   end;
>
> however nothing fires when the screen area changes. My application has no
> title bar or borders which I'm wondering if this is causing the problem. Any
> ideas??
>
> I could use a timer to monitor the screen work area every second or
> something but I would rather get the OS to notify my app if possible.
>
> Regards,
> Laurence Bevan

___
NZ Borland Developers Group - Delphi mailing list
Post: delphi@delphi.org.nz
Admin: http://delphi.org.nz/mailman/listinfo/delphi
Unsubscribe: send an email to delphi-requ...@delphi.org.nz with Subject: 
unsubscribe


[DUG] Detecting change in screen size

2011-08-14 Thread Laurence Bevan
Hi,

I'm trying to detect a change in the client screen size on a Windows tablet.
The tablet comes bundled with a toolbar application which displays along the
left side of the screen which the user can hide or display by clicking in
the taskbar area (not a particularly useful tool but users love it!!). This
cuts down the width of the screen area by about 30 pixels depending on the
resolution. I want my application to grow (or shrink) in size when they
hide/display the toolbar.

I'm using the following  code below in D7:

private 
procedure WMDisplayChange(var Message:TMessage) ; message
WM_DISPLAYCHANGE;
...

procedure TMainForm.WMDisplayChange(var Message: TMessage) ;
 begin
ShowMessage('Change in display size detected!') ;
inherited;
 end;

however nothing fires when the screen area changes. My application has no
title bar or borders which I'm wondering if this is causing the problem. Any
ideas??

I could use a timer to monitor the screen work area every second or
something but I would rather get the OS to notify my app if possible.

Regards,
Laurence Bevan




___
NZ Borland Developers Group - Delphi mailing list
Post: delphi@delphi.org.nz
Admin: http://delphi.org.nz/mailman/listinfo/delphi
Unsubscribe: send an email to delphi-requ...@delphi.org.nz with Subject: 
unsubscribe