> Exist a "HowTo write IB_Components"?
>
> For example to convert existing components (e.g. rxlib)
> to IB_Components.

If you have a copy of IBO3 you will find some files in the source
directory named IBC_BitCheck*.*

The IBC_BitCheck.rtf file describes how to create a data aware
control - including the reuse of IBO source code (taking advantage of
the various .INC files to reduce the coding required).

These files have been dropped from IBO4. I hope to find some time to
write a new version of this sometime that will explain how to use the
IBO4 interface units to create controls that can be dropped onto
IB_Grid, and how to implement alternative mask processing - all
without needing changes to the IBO source.

You can also get additional examples of creating data-aware components
by downloading the EnhComponents.zip file from the IBO3 registered
users site. If you are using IBO4 send me a private email and I will
send you the new version of Enh.

In addition to all this you can simply look at the various IBC_* units
in the IBO source to see how Jason wrote the IBO controls.

HTH

Geoff Worboys
Telesis Computing