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euthymos · Guest

Dear developers, I've made a small application that uses a TWebBrowser
component. Inside this TWebBrowser, there are many scripts and there's
a lot of interaction between IE and the program itself. With IE6 no
problems.

With IE7, I get this exception:
Access violation at address 00669BE1 in module 'MySQLNewsManager.exe'.
Read of address 00000000

I searched the Internet and found several pages describing this very
problem, but none of the fixes worked. Disabling FEATURE_OBJECT_CACHING
(like described in
http://msdn.microsoft.com/library/default.asp?url=/workshop/essentials/whatsnew/whatsnew_70_sec.asp)
is completely USELESS.

Can you help me?

Thank you in advance.

euthymos · Guest

Debugging, I've found the line which raises the exception.

var
MyTextField, MySummaryField : string;
Document : IHTMLDocument2;
elem : IHTMLTextAreaElement;

Document := WebBrowser1.Document as IHTMLDocument2;
elem := Document.all.item('htmlbox', 0) as IHTMLTextAreaElement;
elem.value := MySummaryField; // <<< This line raises an
EAccessViolation exception with message 'Access violation at address
0066AA87 in module 'MySQLNewsManager.exe'. Read of address 00000000'.

euthymos ha scritto: