LoadLibrary-question

[Fred Oxenby Member Find all posts View Profile Close Fred Oxenby]

If I Use LoadLibrary and GetProcAdress to get the adress of functions in the "MAIN PROGRAM MODULE"
Then, after using FreeLibrary, will this adresses still be valid ?
"Sure they will" is an obvious answer, but is that allways true?
I want to collect som useful codepointers in the calling program
once when the DLL is initiated.
and then use this codepointers to generate "events".
Like progress-report and such things as configuration data.

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Fred
mailto:[email protected][email protected]</A>
http://www.oxenby.se



[This message has been edited by Fred Oxenby (edited March 28, 2000).]

[Lance Edmonds Member Find all posts View Profile Close Lance Edmonds]

FreeLibrary() decrements the instance count of the target library. Once the count for that library reaches zero, the memory it occupies is freed. I would also add that it is very likely that FreeLibrary() _immediately_ causes the address space occupied by that library to be unmapped from your process address space (even if the library is not unloaded from memory because another process may still be using it), it can no longer be accessed by your process.

Therefore, once FreeLibrary() has been called, referencing the address space of the library will almost definately earn you a 1 GPF point for trying.

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Lance
PowerBASIC Support
mailto:[email protected][email protected]</A>