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May 13th, 2010, 11:52 PM
#1
Significance of 'return (int) msg.wParam'?
Hello. I am new to multithreading and was on my way through a simple tutorial when I ran across this line to end the primary thread.
return (int) msg.wParam;
I am used to ending my programs in 'return(0);' and was curious as to what the significance of this statement is? Is this the way a thread (using windows API) checks for a success or failure on program termination? Or is there some other reason for this statement?
Thank you in advance for the help!
Tyler.
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May 14th, 2010, 12:44 AM
#2
Re: Significance of 'return (int) msg.wParam'?
A thread can return anything it wishes when it exits - it's up to the programmer to decide what to return.
You use ExitCodeThread to retrieve the value.
Lastly, the OS doesn't care what value is returned.
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May 14th, 2010, 12:57 AM
#3
Re: Significance of 'return (int) msg.wParam'?
Thanks for the help, that cleared things up for me.
tyler.
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