Type Library Size Limits

Thread View: comp.os.ms-windows.programmer.win32

2 messages

[T] Back to Threads [V] Tree View [G] Group Articles

2 total messages Started by rajinder.singh Tue, 01 Sep 1998 00:00

#2181

Author: rajinder.singh
Date: Tue, 01 Sep 1998 00:00

28 lines
1783 bytes

I have a need to create a huge type library. I was wondering what memory,
performance limitations I can run into. I wrote a program to create a
type library and some dummy interfaces with methods on them. Here are the
limits on the number of Interfaces and Methods I can have.
Number of Interfaces : 1022
Number of Methods Per Interface : 2207

If I tried to have any more interfaces or methods my call to CreateTypeInfo or
Layout failed.

Our development environment is MTS 2.0, Delphi 4.0, SQL Server 6.5, Win NT
4.0.

I takes forever to create this and then opening it up using the type library
editor that comes with Delphi.

Are there any drawbacks in creating one huge type library as compared to
several small ones.

Thanks in advance.


Raj
&#137;&#137;
&#137;

-----== Posted via Deja News, The Leader in Internet Discussion ==-----
http://www.dejanews.com/rg_mkgrp.xp   Create Your Own Free Member Forum

Re: Type Library Size Limits

#2182

Author: Girish Bharadwaj [mvp]
Date: Wed, 02 Sep 1998 00:00

54 lines
2625 bytes

See this KB article "FIX: Large Number of Methods in an OLE Interface Causes
Failure"
ID: Q170989
(http://support.microsoft.com/support/kb/articles/q170/9/89.asp). It shows
that
Windows NT 4.0       -   110 methods
Windows NT 4.0 SP2   -   512 methods
Windows NT 4.0 SP3   -  1024 methods
Windows 95           -   512 methods
If you have a requirement that your objects should work in all the above
platforms, you have to limit to 110 methods. I dont think there is a
restriction on number of interface though.
IMHO, I think you have to redesign your object. I dont think having 1000s of
methods on 1000s of interfaces is a proper thing to do. If you give an
outline of the problem, someone might be able to help you redesign it.
--
Girish Bharadwaj [VC++/MVP].
Dont send email queries to me directly.Please put
them on the newsgroups.
Thank you

rajinder.singh@novusmkt.com wrote in message
<6sho09$cmm$1@nnrp1.dejanews.com>...
>I have a need to create a huge type library. I was wondering what memory,
>performance limitations I can run into. I wrote a program to create a
>type library and some dummy interfaces with methods on them. Here are the
>limits on the number of Interfaces and Methods I can have.
>Number of Interfaces : 1022
>Number of Methods Per Interface : 2207
>
>If I tried to have any more interfaces or methods my call to CreateTypeInfo
or
>Layout failed.
>
>Our development environment is MTS 2.0, Delphi 4.0, SQL Server 6.5, Win NT
>4.0.
>
>I takes forever to create this and then opening it up using the type
library
>editor that comes with Delphi.
>
>Are there any drawbacks in creating one huge type library as compared to
>several small ones.
>
>Thanks in advance.
>
>
>Raj
>&#137;&#137;
>&#137;
>
>-----== Posted via Deja News, The Leader in Internet Discussion ==-----
>http://www.dejanews.com/rg_mkgrp.xp   Create Your Own Free Member Forum
>

Thread Navigation

This is a paginated view of messages in the thread with full content displayed inline.

Messages are displayed in chronological order, with the original post highlighted in green.

Use pagination controls to navigate through all messages in large threads.

Back to All Threads