This is strange...

...to me at least. The experienced among you will probably know what's up immediately.

Anyways, here's the situation:

module-1

global buffer as long
public const MAX_XRES= 800
public const MAX_YRES= 600

form-1

buffer= MAX_XRES * MAX_YRES

THIS CAUSES AN OVERFLOW ERROR (6)

800*600 (480000) > 2^32 ???!!

If I simply say:

buffer= 480000, there's no problem

Obviously, VB is playing some odd type conversion game; if anyone can tell me exactly what's going on here, I'd really appreciate it.

Thanks

I expect someone else will explain why it does it but this works

Code:

---

Public buffer As Long
Public Const MAX_XRES As Long = 800
Public Const MAX_YRES As Long = 600

---

------------------
Mark Sreeves
Analyst Programmer

[email protected]
A BMW Group Company

That's right, use Public. Global I beleive is for Global objects in classes (class modules)

Hi!

By default MAX_XRES and MAX_YRES are Integer.
As result when VB uses temp variable you have
Overflow! Just try:

public const MAX_XRES= 800.0
public const MAX_YRES= 600.0
In this case VB will use by default Single

HTH

Thanks everyone. I figured it was something like that. VB "ought" to be smart enough to know that an integer multiplied by an integer will have to be held in a long. Can't everything, I guess.