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On 2 Oct 2006 13:20:23 -0700, Jesse Calato wrote:

> Is it possible to use vcl .net components in WinForms?
Please don't multipost.

-- 
Marc Rohloff [TeamB]
marc rohloff -at- myrealbox -dot- com

>> Is it possible to use vcl .net components in WinForms?
>Please don't multipost.

Sorry about the multipost.  Is it possible?

Hi,

Yes, it's possible, but with a good amount of hair-pulling.
The first thing you need to do is set your VCL.NET control's ParentWindow 
property to the Handle property of the containing WinForm.
The rest involves various workarounds to make it look smooth. For example, 
some events of the WinForm have to be handled and "delegated" to the VCL.NET 
control, e.g. the Resize and others.

Regards,
Arie

"Jesse Calato" <jcalato@harriscomputer.com> wrote in message 
news:4522cf38$1@newsgroups.borland.com...
>
>>> Is it possible to use vcl .net components in WinForms?
>>Please don't multipost.
>
> Sorry about the multipost.  Is it possible? 

>The first thing you need to do is set your VCL.NET control's >ParentWindow 
>property to the Handle property of the containing WinForm.

The ParentWindow Property is an HWND, and the Handle Property 
is an IntPtr getting an incompatible types error on compilation.
How do I get around this?

Do you have an example that you could post?

Thank you in advance.

>The rest involves various workarounds to make it look smooth. For example, 
>some events of the WinForm have to be handled and "delegated" to the VCL.NET 
>control, e.g. the Resize and others.

I have a VCL button displaying on a WinForm.  How do 
I "delegate" the click event to VCL.NET?

Thanks again.

"Jesse Calato" <jcalato@harriscomputer.com> wrote:
>
>>The first thing you need to do is set your VCL.NET control's >ParentWindow 
>>property to the Handle property of the containing WinForm.
>
>The ParentWindow Property is an HWND, and the Handle Property 
>is an IntPtr getting an incompatible types error on compilation.
>How do I get around this?
>
>Do you have an example that you could post?
>
>Thank you in advance.

I figured this out ... Thank You

On 5 Oct 2006 10:02:05 -0700, Jesse Calato wrote:

> I have a VCL button displaying on a WinForm.  How do 
> I "delegate" the click event to VCL.NET?

Just create an event handler and assign it (using := instead of
include)

-- 
Marc Rohloff [TeamB]
marc rohloff -at- myrealbox -dot- com

Hi,

This should be no problem, the usual method of assigning an error handler 
will work with the TButton.

That is, create a procedure whose signature is this:

procedure Button1Click(Sender: TObject);

and assign it to the button like this:

Button1.OnClick := Button1Click;

Sometimes you require delegations when you have WinForm controls that act as 
containers for VCL.NET controls. For example, if you want the online-help 
(F1) to work, you have to handle HelpRequest in the parent WinForm control 
(or better, override OnHelpRequested), and there you should invoke something 
like Forms.Application.HelpCommand(HELP_CONTEXT, 
InternalControl.HelpContext);

Best regards,
Arie



"Jesse Calato" <jcalato@harriscomputer.com> wrote in message 
news:45253a8d$1@newsgroups.borland.com...
>
>>The rest involves various workarounds to make it look smooth. For example,
>>some events of the WinForm have to be handled and "delegated" to the 
>>VCL.NET
>>control, e.g. the Resize and others.
>
> I have a VCL button displaying on a WinForm.  How do
> I "delegate" the click event to VCL.NET?
>
> Thanks again. 

Hi,

I have a similar problem to this. I've got it working using the handle
assignment, but if i dispose of my tform, and the handling form etc,
and then try to do it again (i.e. recreate the windows forms panel,
create a new tform instance, bind the handle to the new win forms
panel) when i call the tform.show() method, i get 'Invalid Window
Handle'.

It works the first, time just not any subsequent times! Any thoughts?

Shaun