Answer / sagar sawant

if you are using 32-bit os then the entry to the
hPrevInstance is always NULL.
It was used in the 16 bit os where the instance of
previosly running application was saved . so that it can be
refered again ! due the memory restriction.

Answer / fahim

hInstance : will be having the handle of the current
instance
hPrevInctance : will be having the handle of last instance
hPrevInstance is NULL if only one instance is running

Answer / manish

int WINAPI WinMain(HINSYANCE,HINSTANCE(prev),LPSTR,int)
hPrevInstance is usefull at 16 bit plateform .Its value
alwys NULL at 32 bit plateform.
hprevInstance is Handle to the previous instance of the
application.
hInstance strores current running application

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