RegCreateKeyA / RegCreateKeyW
The RegCreateKey function creates the specified key. If the key already exists in the
registry, the function opens it. This function is provided for compatibility with
Windows version 3.1. Win32-based applications should use the RegCreateKeyEx function.
LONG RegCreateKey(
HKEY hKey, // handle of an open key
LPCTSTR lpszSubKey, // address of name of subkey to open
PHKEY phkResult // address of buffer for opened handle
);
Returns
If the function succeeds, the return value is ERROR_SUCCESS.
If the function fails, the return value is an error value.
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RegCreateKeyExA / RegCreateKeyExW
The RegCreateKeyEx function creates the specified key. If the key already exists in the
registry, the function opens it.
LONG RegCreateKeyEx(
HKEY hKey, // handle of an open key
LPCTSTR lpszSubKey, // address of subkey name
DWORD dwReserved, // reserved
LPTSTR lpszClass, // address of class string
DWORD fdwOptions, // special options flag
REGSAM samDesired, // desired security access
LPSECURITY_ATTRIBUTES lpSecurityAttributes, // address of key security structure
PHKEY phkResult, // address of buffer for opened handle
LPDWORD lpdwDisposition // address of disposition value buffer
);
Returns
If the function succeeds, the return value is ERROR_SUCCESS.
If the function fails, the return value is an error value.
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RegDeleteKeyA / RegDeleteKeyW
The RegDeleteKey function deletes a key and all its descendents.
LONG RegDeleteKey(
HKEY hKey, // handle of open key
LPCTSTR lpszSubKey // address of name of subkey to delete
);
Returns
If the function succeeds, the return value is ERROR_SUCCESS.
If the function fails, the return value is an error value.
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RegDeleteValueA / RegDeleteValueW
The RegDeleteValue function removes a named value from the specified registry key.
LONG RegDeleteValue(
HKEY hKey, // handle of key
LPTSTR lpszValue // address of value name
);
Returns
If the function succeeds, the return value is ERROR_SUCCESS.
If the function fails, the return value is an error value.
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RegOpenKeyA / RegOpenKeyW
The RegOpenKey function opens the specified key. This function is provided for
compatibility with Windows version 3.1. Win32-based applications should use the
RegOpenKeyEx function.
LONG RegOpenKey(
HKEY hKey, // handle of open key
LPCTSTR lpszSubKey, // address of name of subkey to open
PHKEY phkResult // address of handle of open key
);
Returns
If the function succeeds, the return value is ERROR_SUCCESS.
If the function fails, the return value is an error value.
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RegOpenKeyExA / RegOpenKeyExW
The RegOpenKeyEx function opens the specified key.
LONG RegOpenKeyEx(
HKEY hKey, // handle of open key
LPCTSTR lpszSubKey, // address of name of subkey to open
DWORD dwReserved, // reserved
REGSAM samDesired, // security access mask
PHKEY phkResult // address of handle of open key
);
Returns
If the function succeeds, the return value is ERROR_SUCCESS.
If the function fails, the return value is an error value.
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RegQueryValueA / RegQueryValueW
The RegQueryValue function retrieves the value associated with the unnamed value for a
specified key in the registry. Values in the registry have name, type, and data components.
This function retrieves the data for a key's first value that has a NULL name. This function
is provided for compatibility with Windows version 3.1. Win32-based applications should use
the RegQueryValueEx function.
LONG RegQueryValue(
HKEY hKey, // handle of key to query
LPCTSTR lpszSubKey, // address of name of subkey to query
LPTSTR lpszValue, // address of buffer for ret string
PLONG pcbValue // address of buffer for size of ret string
);
Returns
If the function succeeds, the return value is ERROR_SUCCESS.
If the function fails, the return value is an error value.
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RegQueryValueExA / RegQueryValueExW
The RegQueryValueEx function retrieves the type and data for a specified value name associated with an open registry key.
LONG RegQueryValueEx(
HKEY hKey, // handle of key to query
LPTSTR lpszValueName, // address of name of value to query
LPDWORD lpdwReserved, // reserved
LPDWORD lpdwType, // address of buffer for value type
LPBYTE lpbData, // address of data buffer
LPDWORD lpcbData // address of data buffer size
);
Returns
If the function succeeds, the return value is ERROR_SUCCESS.
If the function fails, the return value is an error value.
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00. INDEX
03. Breakpoints & Win API Details
5 Registry Accesses