Dynamic Link Libraries – Concept


DLL is a library of functions that are compiled, linked, and stored separately from the processes that use them.  A DLL provides a way to share functions among programs that run concurrently.

To better understand the importance of DLLs, consider the familiar 4GL sprintf$() function that formats a string.  A copy of the sprintf$ function must be included in each program that uses it.  Eventually, the number of programs containing copies of the sprintf$ function will become quite large, resulting in a large amount of memory use.  Because the sprintf$ functions in all these programs are identical, you can set it up so that these programs share this function.

With DLLs, once a session has used a particular function, that function is removed from memory, ensuring that only one copy of the function is in memory while being used.  DLLs have another advantage because they also reduce the size of objects to a minimum.



For detail information about the procedure, we have prepared an ebook.

Kindly drop us an email at fullonbaan@gmail.com to avail the ebook.

This ebook is available free of cost.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s