Calling external dll from multiple forms

[cucolino]

Hello.

I wonder if anyone can tell me something about calling the external dll file from delphi.
I have a main form, which has the procedures locating the dll file, and then I have about 30 other forms, in which I use these commands. Now my question is, is it bad or performance-reducing if I replicate all of the availible commands in the code of all forms? Is there even any other-better way, so these commands linked to a dll would be only in main form, so the other forms call them via main form...?

One more thing: does it have any affect to the program, if I simply use all forms in every form in the Uses section, instead of filtering whichones I actually need...?

Thanks! :)

Marc

[pritaeas]

You can replicate it, but it is not necessary. Move the procedures for accessing your DLL to a separate unit, then you can include that one into all forms.

[cucolino]

Will do then, sir. :) Thank you.
How about all those "uses", does it affect if mentioning all forms in eachone instead of filtering the ones that are actually in use?

[pritaeas]

It won't make much of a difference, but personally I try to minimize them and only include what's needed.