RegQueryValueEx的问题

Question

请参考以下代码

HKEY hKey = 0;
int code = RegOpenKey(HKEY_CURRENT_USER, subkey, &hKey); //code is ERROR_SUCCESS

char aBuf[255] = {0};
char bBuf[255] = {0};
DWORD dwType = REG_SZ;
DWORD dwBufSize = sizeof(bBuf);

int aCode = RegQueryValueEx(hKey, L"a", 0, &dwType, (BYTE*)aBuf, &dwBufSize);
int bCode = RegQueryValueEx(hKey, L"b", 0, &dwType, (BYTE*)bBuf, &dwBufSize);
//(*) here I have a breakpoint

在断点aBuf(以及bBuf)是类似的'a' '\0' 'v' '\0' 'a' '\0' 'l' '\0' 'u' '\0' 'e' '\0'.我究竟做错了什么？

先感谢您!

Answer 1

您的代码编译为UNICODE(由您使用L"a"证明),因此结果将是wchar_t数组,而不是char数组.