DoEvents

Hello there,

Is there any fnction in Visual C++/MFC, that function is similar
to DoEvents in Visual Basic?

I have a very very long while loop like this

long lStart = 0;
long lEnd = very very large number
while (lStart < lEnd)
{
Sleep(0);

if (condition1)
Invalidate() to update windows;

do other processing;

lStart += lStep;
}

but during the loop, the Invalidate() function can not be processed.
Of course, I can use SetTimer/OnTimer to handle the loop, but that is
too slow.

Any idea is approciated! Pls email me your suggestion <wangch@necsin.nec.com.sg>

Thks,
Changhe Wang