ActiveX Web Control <--> ASP.Net

**Kevin Spencer** · Nov 30 '05, 03:35 PM

Re: ActiveX Web Control <--> ASP.Net

How the client-side ActiveX Control gets it's image data depends on how the
client-side ActiveX Control was developed to work. Generally, this sort of
client-side component fetches its own data from a server in some way, but I
couldn't tell you specifically in this case.

--
HTH,

Kevin Spencer
Microsoft MVP
..Net Developer
If you push something hard enough,
it will fall over.
- Fudd's First Law of Opposition

"Weston Fryatt" <wfryatt "at" mlinks.net> wrote in message
news:uhdlM5b9FH A.1224@TK2MSFTN GP12.phx.gbl...[color=blue]
> Simple question I hope....
>
>
> How do I send data to and from an ASP.Net (server side) web page to a
> ActiveX Control (client side) embedded in a web browser???
>
> What I need to do, is I have image data (mostly TIFF format) that need to
> be
> sent to our custom Image Viewer (ActiveX control). So far I can get the
> TIFF image data loaded into a Byte Array in C# on my ASP.Net web page, But
> how do I send this data now to my ActiveX control on the client side? The
> ActiveX control is written in VC++ .Net 2003 using MFC so its unmanaged.
> Also I need to do the reverse too, I need to be able to send Image data
> from
> the ActiveX control back to the ASP.Net web page.
>
> Thanks,
> Weston Fryatt
>
>
>
>[/color]

**Weston Fryatt** · Nov 30 '05, 04:25 PM

Re: ActiveX Web Control <--> ASP.Net

Right now the ActiveX Control has a method to load an image from a memory
pointer:

BOOL CCDMS_ViewerCtr l::LoadDocument (CLeadBitmap * ltbm);

The actual data from the server side is being sent as a LeadTools Bitmap.
At least this is how its written now.. But I can rewrite the control to work
anyway I need it to work.

If I'm understanding you right, The ActiveX Control itself is going to have
to send a request to the web server for the data? Would this have to be a
WebService?

Thanks,
Weston Fryatt

"Kevin Spencer" <kevin@DIESPAMM ERSDIEtakempis. com> wrote in message
news:uE4njKc9FH A.600@tk2msftng p13.phx.gbl...[color=blue]
> How the client-side ActiveX Control gets it's image data depends on how[/color]
the[color=blue]
> client-side ActiveX Control was developed to work. Generally, this sort of
> client-side component fetches its own data from a server in some way, but[/color]
I[color=blue]
> couldn't tell you specifically in this case.
>
> --
> HTH,
>
> Kevin Spencer
> Microsoft MVP
> .Net Developer
> If you push something hard enough,
> it will fall over.
> - Fudd's First Law of Opposition
>
> "Weston Fryatt" <wfryatt "at" mlinks.net> wrote in message
> news:uhdlM5b9FH A.1224@TK2MSFTN GP12.phx.gbl...[color=green]
> > Simple question I hope....
> >
> >
> > How do I send data to and from an ASP.Net (server side) web page to a
> > ActiveX Control (client side) embedded in a web browser???
> >
> > What I need to do, is I have image data (mostly TIFF format) that need[/color][/color]
to[color=blue][color=green]
> > be
> > sent to our custom Image Viewer (ActiveX control). So far I can get the
> > TIFF image data loaded into a Byte Array in C# on my ASP.Net web page,[/color][/color]
But[color=blue][color=green]
> > how do I send this data now to my ActiveX control on the client side?[/color][/color]
The[color=blue][color=green]
> > ActiveX control is written in VC++ .Net 2003 using MFC so its unmanaged.
> > Also I need to do the reverse too, I need to be able to send Image data
> > from
> > the ActiveX control back to the ASP.Net web page.
> >
> > Thanks,
> > Weston Fryatt
> >
> >
> >
> >[/color]
>
>[/color]

**Bruce Barker** · Nov 30 '05, 06:35 PM

Re: ActiveX Web Control <--> ASP.Net

no, you can use any protocol you want. the simplest would just a HTTP GET of
the image. to upload just do a HTTP POST of base64encode of the image. see
the wininet api for using the http protocol from your active/x control.

-- bruce (sqlwork.com)

"Weston Fryatt" <wfryatt "at" mlinks.net> wrote in message
news:%234wM1kc9 FHA.2616@TK2MSF TNGP15.phx.gbl. ..[color=blue]
> Right now the ActiveX Control has a method to load an image from a memory
> pointer:
>
> BOOL CCDMS_ViewerCtr l::LoadDocument (CLeadBitmap * ltbm);
>
> The actual data from the server side is being sent as a LeadTools Bitmap.
> At least this is how its written now.. But I can rewrite the control to
> work
> anyway I need it to work.
>
> If I'm understanding you right, The ActiveX Control itself is going to
> have
> to send a request to the web server for the data? Would this have to be a
> WebService?
>
> Thanks,
> Weston Fryatt
>
>
> "Kevin Spencer" <kevin@DIESPAMM ERSDIEtakempis. com> wrote in message
> news:uE4njKc9FH A.600@tk2msftng p13.phx.gbl...[color=green]
>> How the client-side ActiveX Control gets it's image data depends on how[/color]
> the[color=green]
>> client-side ActiveX Control was developed to work. Generally, this sort
>> of
>> client-side component fetches its own data from a server in some way, but[/color]
> I[color=green]
>> couldn't tell you specifically in this case.
>>
>> --
>> HTH,
>>
>> Kevin Spencer
>> Microsoft MVP
>> .Net Developer
>> If you push something hard enough,
>> it will fall over.
>> - Fudd's First Law of Opposition
>>
>> "Weston Fryatt" <wfryatt "at" mlinks.net> wrote in message
>> news:uhdlM5b9FH A.1224@TK2MSFTN GP12.phx.gbl...[color=darkred]
>> > Simple question I hope....
>> >
>> >
>> > How do I send data to and from an ASP.Net (server side) web page to a
>> > ActiveX Control (client side) embedded in a web browser???
>> >
>> > What I need to do, is I have image data (mostly TIFF format) that need[/color][/color]
> to[color=green][color=darkred]
>> > be
>> > sent to our custom Image Viewer (ActiveX control). So far I can get
>> > the
>> > TIFF image data loaded into a Byte Array in C# on my ASP.Net web page,[/color][/color]
> But[color=green][color=darkred]
>> > how do I send this data now to my ActiveX control on the client side?[/color][/color]
> The[color=green][color=darkred]
>> > ActiveX control is written in VC++ .Net 2003 using MFC so its
>> > unmanaged.
>> > Also I need to do the reverse too, I need to be able to send Image data
>> > from
>> > the ActiveX control back to the ASP.Net web page.
>> >
>> > Thanks,
>> > Weston Fryatt
>> >
>> >
>> >
>> >[/color]
>>
>>[/color]
>
>[/color]

ActiveX Web Control <--> ASP.Net

ActiveX Web Control <--> ASP.Net

Comment

Comment

Comment