MDI Child Form Close Button in Delphi 1.0?????

Kenneth R. Lewis

Delphi Developer

Tue, 24 Apr 2001 03:00:00 GMT

MDI Child Form Close Button in Delphi 1.0?????

Anybody have any ideas on why the X close button on MDI child windows would
be grayed out and disable at times? Any fixes to this?

Peter Belo

Delphi Developer

Wed, 25 Apr 2001 03:00:00 GMT

Re:MDI Child Form Close Button in Delphi 1.0?????

Quote

> Anybody have any ideas on why the X close button on MDI child windows would
> be grayed out and disable at times? Any fixes to this?

I think it is due to a bug in the Windows MDI implementation. However, it
only seems to surface if the program plays around with the WindowState in
code instead of leaving all minimizing and maximizing to the user.

If you maximize child forms in code now by setting the WindowState property,
try to switch to sending a WM_MDIMAXIMIZE message to the MDi client window
instead.

Peter Below (TeamB) 100113.1...@compuserve.com)
No e-mail responses, please, unless explicitely requested!

Kenneth R. Lewi

Delphi Developer

Sat, 28 Apr 2001 03:00:00 GMT

Re:MDI Child Form Close Button in Delphi 1.0?????

I tried that but it still does it. If it is one MDI Child form it doesn't
do it until I create a second one.

I am using Application.CreateForm to create the MDI Child.

Any other suggestions?

Quote

Peter Below <100113.1...@compuserve.com> wrote in message ...
>> Anybody have any ideas on why the X close button on MDI child windows
would
>> be grayed out and disable at times? Any fixes to this?

>I think it is due to a bug in the Windows MDI implementation. However, it
>only seems to surface if the program plays around with the WindowState in
>code instead of leaving all minimizing and maximizing to the user.

>If you maximize child forms in code now by setting the WindowState
property,
>try to switch to sending a WM_MDIMAXIMIZE message to the MDi client window
>instead.

>Peter Below (TeamB) 100113.1...@compuserve.com)
>No e-mail responses, please, unless explicitely requested!

Peter Belo

Delphi Developer

Sat, 28 Apr 2001 03:00:00 GMT

Re:MDI Child Form Close Button in Delphi 1.0?????

Quote

In article <729o2n$4...@forums.borland.com>, Kenneth R. Lewis wrote:
> I tried that but it still does it. If it is one MDI Child form it doesn't
> do it until I create a second one.

> I am using Application.CreateForm to create the MDI Child.

> Any other suggestions?

No, sorry. I never used MDI for anything more serious than the text editor
example program. MDi is one big hack, and MS has abandoned it long ago for
its own apps, they use a custom windowing library instead.

Peter Below (TeamB) 100113.1...@compuserve.com)
No e-mail responses, please, unless explicitely requested!

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