The GetPrivateProfileSectionNames function retrieves the names of all sections in an initialization file. This function is provided for compatibility with 16-bit Windows-based applications. Win32-based applications should store initialization information in the registry.
DWORD GetPrivateProfileSectionNames(
LPTSTR lpszReturnBuffer, |
// 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 specified buffer, not including the terminating null character. If the buffer is not large enough to contain all the section names associated with the specified initialization file, the return value is equal to the length specified by nSize minus two.
This operation is atomic; no updates to the initialization file are allowed while the section names are being copied to the buffer.
Calls to profile functions might be mapped to the registry instead of to the initialization files. When the operation has been mapped, the GetPrivateProfileSectionNames 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.
GetPrivateProfileSection, WritePrivateProfileSection
file: /Techref/os/win/api/win32/func/src/f37_1.htm, 6KB, , updated: 2000/4/7 12:19, local time: 2024/8/16 18:38,
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