float = callfunction()

[Dr. Dri]

i have to do that :

Code: Select all

OpenLibrary(0, "VantagePro.dll")

f.f
CallCFunction(0, "GetDllVersion_V")
!FSTP dword [v_f]

Debug f

PureBasic should add the FSTP depending on the return variable type

Dri

[Polo]

I second that, I really don't understand why we cannot get the floats out of a dll function, other programming languages manage to do it, and I think it's needed everytime when working with dll !

[FloHimself]

PureBasic should add the FSTP depending on the return variable type

How should the CallFunction() / CallCFunction() know that the
DLL Function returns a float?
Only way i see is Fred giving us a way to declare external Functions like
in VB.

[Dr. Dri]

How should the CallFunction() / CallCFunction() know that the
DLL Function returns a float?
Only way i see is Fred giving us a way to declare external Functions like
in VB.

I mean, if you use CallFunction in a purebasic local float variable, it should be automatic

Code: Select all

myFloat.f = CallFunction(lib, "function", parameters)

Dri

[Froggerprogger]

I mean, if you use CallFunction in a purebasic local float variable, it should be automatic

That would totally confuse! I suppose that many people use
bla.f = CallFunction(...) at the moment.
These lines would'nt work any longer, because the result would be read from the st0-register, not eax any longer.

I would prefer a simple:
CallFunctionF(...)

That has already been on the wishlist some time ago.

[Psychophanta]

I would prefer a simple:
CallFunctionF(...)

That has already been on the wishlist some time ago.

What about
CallFunction.f(...) , CallFunction.b(...) , etc.
?