The GetPrivateProfileSection function retrieves all of the keys and values for the specified section from an initialization file. This function is provided for compatibility with 16-bit applications written for Windows. Win32-based applications should store initialization information in the registry.
DWORD GetPrivateProfileSection(
LPCTSTR lpAppName, |
// address of section name |
LPTSTR lpReturnedString, |
// address of return buffer |
DWORD nSize, |
// size of return buffer |
LPCTSTR lpFileName |
// address of initialization filename |
); |
The return value specifies the number of characters copied to the buffer, not including the terminating null character. If the buffer is not large enough to contain all the key name and value pairs associated with the named section, the return value is equal to nSize minus two.
The data in the buffer pointed to by the lpReturnedString parameter consists of one or more null-terminated strings, followed by a final null character. Each string has the following format:
key=string
The GetPrivateProfileSection function is not case-sensitive; the string pointed to by the lpAppName parameter can be a combination of uppercase and lowercase letters.
This operation is atomic; no updates to the specified initialization file are allowed while the key name and value pairs for the section are being copied to the buffer pointed to by the lpReturnedString parameter.
HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows NT\CurrentVersion\IniFileMapping
This mapping is likely if an application modifies system-component initialization files, such as CONTROL.INI, SYSTEM.INI, and WINFILE.INI. In these cases, the GetPrivateProfileSection function retrieves information from the registry, not from the initialization file; the change in the storage location has no effect on the function’s behavior.
The Win32 Profile functions (Get/WriteProfile*, Get/WritePrivateProfile*) use the following steps to locate initialization information:
HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows NT\CurrentVersion\IniFileMapping\myfile.ini
When looking at values in the registry that specify other registry locations, there are several prefixes that change the behavior of the ini file mapping:
! - this character forces all writes to go both to the registry and to the .INI file on disk.
# - this character causes the registry value to be set to the value in the Windows 3.1 .INI file when a new user logs in for the first time after setup.
@ - this character prevents any reads from going to the .INI file on disk if the requested data is not found in the registry.
USR: - this prefix stands for HKEY_CURRENT_USER, and the text after the prefix is relative to that key.
SYS: - this prefix stands for HKEY_LOCAL_MACHINE\SOFTWARE, and the text after the prefix is relative to that key.
GetProfileSection, WritePrivateProfileSection
file: /Techref/os/win/api/win32/func/src/f37.htm, 7KB, , updated: 2000/4/7 11:19, local time: 2024/11/5 13:40,
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