what does "call" do?

[sam0010]

Whats the diffrence between "CALL sub1" and just "sub1"

[crptcblade]

the only thing I know of is that with Call, you need to pass parameters like :

Call Sub1("Hello")

as with simply saying "Sub1" its just :

Sub1("Hello")

There is no differnce. Call is an optional keyword that was once used in the old days of Basic.

call can still b useful sometimes tho with things like msgbox coz u dont have to use a variable when u dont need to know what they clicked

if you don't need to know what they click then just don't use Parentheses.
ex:
MsgBox "This Work Just Fine", vbOKOnly

[crptcblade]

its good for readability...say you've just inheirited a project from some one and you come across this...

makeBacon

The first thing I would think is what the f*** is this supposed to be? Now if it was a small amount of code, I could look through and see a sub or function called makeBacon, but let's say there's 400 lines of code? Do you what to go looking through the entire app for "makeBacon"? I wouldn't... so if you use:

Call makeBacon

you know you're dealing with a procedure of some sort...

That is a very good point

i didt know u could do msgboxes like that

!!!!



But anyway, as to the people that say use call for readability, whats wrong with comments?

[Lethal]

I tend to use "call" in all of my projects, for sheer readability.

[crptcblade]

ok, on comments...

makeBacon 'this calls the makeBacon subroutine

do you want to have to do this for every occasion that you call makeBacon? it doesn't seem very practical to me...

[crptcblade]

thanks for the support Lethal

[JamesM]

Although readability is a very good point and I use it where possible, I don't think you use call to call a function and return a value. So call can only be used when you call a sub or a function where you are not interested in the result. If you want to return a value from the function you cannot use call.

E.g

Call msgbox("Confirm",vbyesno) 'doesn't return a value
msgbox ("confirm",vbyesno) 'returns a value

[Lethal]

i see what your saying it wouldn't make sense to do this:

Dim X as Integer
x = Call MsgBox "Blah Blah Blah"

Times like this you make the exception
By the way, no problem Crypt...., great minds think alike..hehe