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40 lines
1 KiB
C++
40 lines
1 KiB
C++
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <shlwapi.h>
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#include "zstring.h"
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//==========================================================================
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//
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// QueryPathKey
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//
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// Returns the value of a registry key into the output variable value.
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//
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//==========================================================================
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bool I_QueryPathKey(const wchar_t* keypath, const wchar_t* valname, FString& value)
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{
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HKEY pathkey;
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DWORD pathtype;
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DWORD pathlen;
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LONG res;
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value = "";
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if (ERROR_SUCCESS == RegOpenKeyEx(HKEY_LOCAL_MACHINE, keypath, 0, KEY_QUERY_VALUE, &pathkey))
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{
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if (ERROR_SUCCESS == RegQueryValueEx(pathkey, valname, 0, &pathtype, NULL, &pathlen) &&
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pathtype == REG_SZ && pathlen != 0)
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{
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// Don't include terminating null in count
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TArray<wchar_t> chars(pathlen + 1, true);
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res = RegQueryValueEx(pathkey, valname, 0, NULL, (LPBYTE)chars.Data(), &pathlen);
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if (res == ERROR_SUCCESS) value = FString(chars.Data());
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}
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RegCloseKey(pathkey);
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}
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return value.IsNotEmpty();
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}
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