Hi !!

pls help out ...

System.Windows.Forms.

Help.ShowHelp(this, @"c:\someHelp.hlp", HelpNavigator.TopicId,505);.. doesnot work (doesnt open the topic, opens only the file)

WinHelp(

new IntPtr(0).ToInt32(), @"c:\someHelp.hlp", HELP_CONTEXT, 505); .. works .. calls the api as below

migrating for VB 6.0 to .net 2008

[

DllImport("user32", EntryPoint = "WinHelp")]

public static extern bool WinHelp(int hwnd, string lpHelpFile, int wCommand, int dwData);

I am afraid TopicId is only supported for chm help files, not hlp files. I think you are stuck with invoking the "old-style" WinHelp function until you have migrated your help files to chm format.

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Geert van Horrik - CatenaLogic
Visit my blog: http://blog.catenalogic.com

Looking for a way to deploy your updates to all your clients? Try Updater!

Use HelpNavigator.Topic instead of HelpNavigator.TopicId.

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Geert van Horrik - CatenaLogic
Visit my blog: http://blog.catenalogic.com

Looking for a way to deploy your updates to all your clients? Try Updater!

I dont have the Topic names/ URL
Replacicing TopicId by topic produces the same result.

P.S. I am migrating existing code which has Topic IDs as constant string that i plan to use

I am afraid TopicId is only supported for chm help files, not hlp files. I think you are stuck with invoking the "old-style" WinHelp function until you have migrated your help files to chm format.

---

Geert van Horrik - CatenaLogic
Visit my blog: http://blog.catenalogic.com

Looking for a way to deploy your updates to all your clients? Try Updater!

I also test on my side and also search on the internet. Seems the .hlp file doesn’t support HelpNavigator search. Also suggest you to convert the .hlp file to .chm format.

You can refer to the following:

http://www.bestshareware.net/howto/convert-hlp-to-chm.htm

Best regards,

Ling Wang

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