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Reading value from a key in Windows Registry (VC++ code)

, 22 Nov 2011 CPOL
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How to read a value from a key in the Windows Registry.
	wchar_t buffer[MAX_PATH];
	wchar_t* szValueName;
	wchar_t* SubKeyName;
	wchar_t* installPath;
	HKEY hKey;
	DWORD dwBufLen;
	LONG lret;
	DWORD* reservedNULL = NULL;
	DWORD reservedZero = 0;
	szValueName = L"Path";
	SubKeyName = L"SOFTWARE\\7-Zip";
	lret = RegOpenKeyEx(HKEY_LOCAL_MACHINE,
	if (lret == ERROR_SUCCESS)
		dwBufLen = MAX_PATH;
		lret = RegQueryValueEx(hKey,
		if (lret == ERROR_SUCCESS)
		   installPath = buffer;
		   hr = S_OK;
		} // end if successfull value read
	} // end if successfule key open


This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)


About the Author

Mitendra Anand
India India
My name is Mitendra Anand and my work is focused around application development which includes a lot of prototyping of new solutions.

While I have a background in C++/VC++ programming, my daily work is mostly spent in C++, Sybase, SQL, Unix/Windows.
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Comments and Discussions

GeneralMy vote of 1 Pinmemberluckyrockstar50510-Jul-14 10:53 
GeneralThe method of defining a union RegKeyValue just to get somet... Pinmembernv322-Nov-11 5:46 
GeneralRe: Thanks for correcting it. Your code certainly is more neat. ... PinmemberMitendra Anand22-Nov-11 6:26 
GeneralReason for my vote of 1 Trivial PinmemberMember 351467110-Nov-11 5:04 
GeneralRe: Can you provide me a better way to read the reg value from C... PinmemberMitendra Anand10-Nov-11 5:08 

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