Return value of WinMain()

[TpOreilly]

Hi, i know the return value from WinMain should be the message wParam (msg.wParam).

But my question is why? What is the point in us returning this?

Thanks

[hanst99]

Nowadays, nothing. Currently windows completely ignores the return value of WinMain, I think it used to be important back in the 16 bit times.

As a convention, WinMain should return 0 if it terminates before the msg loop is entered, and msg.wParam if it terminates for some other reason.

(It DOES matter if you call other programs from your programs though - in that case you could use the return value to determine what was the reason for the program to quit).

[TpOreilly]

thanks