Synchronized Scrolling between C# applications

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Roe - 17 Nov 2006 15:07 GMT

What is the best way using C# .NET 1.1 to have two (or more)
applications perform a "synchronized" scrolling? These applications
will all be C# .NET and will be on the same machine. The effect I need
to create is if one program enables this "sync" feature, other
instances of this application will scroll in sync while the base one's
scroll bar is moved. Is remoting the best way to do this? Or is there
another way? I'm just concerned about the amout of messages that occur
on a scroll event.
Thanks in advance.

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Ciaran O''Donnell - 17 Nov 2006 15:38 GMT

If this is only supposed to sync one way then it would be possible to on
scroll, send a windows message to the other application to cause it to scroll
too. I'm not sure exactly what the code would look like but it sounds
reasonable to me. I'm sure there are some people more familiar with Win32 to
shed some light.

Ciaran O'Donnell

> What is the best way using C# .NET 1.1 to have two (or more)
> applications perform a "synchronized" scrolling? These applications
[quoted text clipped - 5 lines]
> on a scroll event.
> Thanks in advance.

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Roe - 17 Nov 2006 16:37 GMT

So, is it possible to use windows messaging via .NET? That was
something I was wondering about.

> If this is only supposed to sync one way then it would be possible to on
> scroll, send a windows message to the other application to cause it to scroll
[quoted text clipped - 13 lines]
> > on a scroll event.
> > Thanks in advance.

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Dave Sexton - 17 Nov 2006 17:46 GMT

Hi,

It is possible, but you need to use one of the SendMessage or PostMessage API
functions, AFAIK:

[DllImport("user32.dll")]
public static extern int SendMessage(IntPtr window, uint message, IntPtr
wparam, IntPtr lparam);

Signature

Dave Sexton

> So, is it possible to use windows messaging via .NET? That was
> something I was wondering about.
[quoted text clipped - 18 lines]
>> > on a scroll event.
>> > Thanks in advance.

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Synchronized Scrolling between C# applications

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