OLE protocol

Hi,
I’m looking for an example application with source, using the OLE protocol, for the purpose of experimenting.

Thanks

Here are some ideas in a forthcoming article here

Thank you for your response and the article.

Your conclusion:

This is a useful prorocol but, to say the
least, is not very well publicised.

I understand better why I have difficulty finding information.

Some information about the OLE protocol is in the Wimp StrongHelp manual (under User messages > OLE protocol), more elaborate information can be found on Erik Groenhuis’ website

Chris’ article seems to describe how to use the OLESupport module to OLE a file. This is only necessary when the intended server application doesn’t support OLE natively.

For example, when you want to OLE a text file then you only need the OLESupport module for Edit as both Zap and StrongED are OLE servers for text files.

Makro implements a simple OLE client that invokes an OLE session directly. For an example of an OLE server you could look at the sources for Zap or StrongED (if you don’t mind all the assembler code).

Hope this helps you getting to grips with the OLE protocol.

Some information about the OLE protocol is in the Wimp StrongHelp manual (under User messages > OLE protocol), more elaborate information can be found on Erik Groenhuis’ website

As with time and tide, web erosion waits for no man – most of the links are 404

Thanks Steve, I should have checked the links first so my bad. However I do have local copies of the linked pages so I can send them to Jean-Michel if he wants them.

Thanks everyone,
I found the “erikgmh…” link and came across some “404” pages.I also found in the StrongEd ​​manual: userMessages OLEProtocol.
I’m looking for an example, or an API.
My “project” would be to have a textual script that is automatically updated in a !Draw window.
A quick question, with !Draw can we choose the opening location of the window?
With StrongEd this is possible and therefore avoids having a bunch of windows, they are all in the same place (Use with !Diderot or with !StrongED ListWindows)

For example, when you want to OLE a text file then you only need the OLESupport module for Edit as both Zap and StrongED are OLE servers for text files.

This is an interesting example, but I’m not yet able to build it.
Fed, I am interested in files that are no longer available, thank you.

@ Steve

As with time and tide, web erosion waits for no man – most of the links are 404

Seems mostly that riscos.info is having troubles again, the index.php is gone or has been moved, so no wiki available (like at all) at the moment.

@ Fred

It’s probably a good idea to make a copy of these resources in the ROOL’s Wiki as well?

https://web.archive.org/web/20221212110356/http://www.riscos.info/index.php/OLE_Specification

Not forgetting the two links at the bottom of the page…

It’s probably a good idea to make a copy of these resources in the ROOL’s Wiki as well?

+1

Thanks for the web.archive link….

I have something to read and try to understand. I hope to be able to build a small test program.

It’s a good thing to gather information about a topic like OLE.

It is with the help of this type of documents that I was able to implement drop drag + copy/paste in one of my programs, which uses TextAreas. It’s not perfect, but it works and I hope that updating the toolbox will make it easier.

Bonjour,
Just to know. When, for example, with StrongEd, we open a second window of the current file, the update of the second window is done via OLE?

@ Paolo

It’s probably a good idea to make a copy of these resources in the ROOL’s Wiki as well?

For sure, but I don’t know what the current copyright status of these resources is so whether it’s allowed to add them to the ROOL’s Wiki is unclear.

@ Jean-Michel

Thanks for the web.archive link….

I take it that you now have a copies of the OLE specification documents so I no longer have to send them to you?

A quick question, with !Draw can we choose the opening location of the window?

Not that I know of. However if it’s a window for an existing file then you can probably find the window by scanning the window stack and looking for a window owned by Draw and that has the filename as its title.

When found, you can send an OpenWindow message to position the window where you want it.

When, for example, with StrongEd, we open a second window of the current file, the update of the second window is done via OLE?

Do you mean creating a new view (Menu → Display → New view) or opening a second copy of the file (Shift-drag to iconbar icon)?

Either way, the answer is no. In the new view case it’s just an extra redraw as both views point at the same text in memory. With a second copy the only way to see changes made in one copy is to save the file and use the Refresh button on the other copy.

If you want to open a window in a particular location using a *command (usually in an obey file) you can use my WindOpen module http://www.armclub.org.uk/free

*WO_OpenWind Draw < filename > < x0 > < y0 > [ < x1 > < y1 > ]

@ Fred

I take it that you now have a copies of the OLE specification documents so I no longer have to send them to you?
you can send them to me, please, I will check if they are the same.

Thank you for the explanation about the display, I used Menu → Display → New view.

@David
I will test.
My idea is to have a script text window that would allow you to refresh a drawing made by Draw.

I hope my sentence is understandable :-(

@David
Finally I managed to use your module, and associate it with StrongEd ​​which allows me to edit a script, I can always open in the same location, the Draw file obtained by using an editor icon to save and process the script.
The goal is to make a modification to the script and see it done in the Draw file, the result is almost instantaneous.

Thank you for this module and your programs.