Just recently, I needed to implement a pause or delay loop in a Visual Basic 6 program.

Being lazy, my first instinct was just to do a for-next loop with a DoEvents in the middle. But this gave different results on different machines, which wasn’t what I was looking for.

The I tried using the Sleep API call.

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I just hit an interesting error in VB6 today – it’s best described as a Visual Basic 6 round error.

I was trying to calculate a distance between two points. No problem there except I didn’t want to put something on a page that said “48.723569″ miles. That would look dumb.

No problem, I thought, I’ll format the output using VB’s format command, giving the number string as “#####0.0″.

But for certain numbers, format in VB 6 kept giving me the answer 0.0. Not exactly what I was looking for…

No problem, I’ll use Round instead.

Same error. Some calculations worked, others got rounded to zero regardless… (more…)