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[Question] C++, Why use hwnd?

 
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407
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PostPosted: Sun Aug 05, 2012 7:31 pm    Post subject: [Question] C++, Why use hwnd? Reply with quote
Hi,
I'm trying to understand Windows API, and I'm wondering what hWnd does, and how it is different from a regular variable.

In this guide I'm reading, the author writes

Code:
HWND hWnd = FindWindow(0, "notepad");
if(hWnd == 0)
cout << "error, could not find notepad" << endl;


Is there anything I should know about hWnd, or should I just understand that some functions return hWnd type?
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Slugsnack
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PostPosted: Sun Aug 05, 2012 8:18 pm    Post subject: Reply with quote
all you need to know is that HWND is a type that represents a handle to a window. in the current sdk, HWND is defined to HANDLE. this in turn is defined to PVOID. i say in the current sdk because HWND might be defined to something else in the next version of the sdk. this is why it is important to use HWND instead of HANDLE or PVOID directly for example
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