The GetPrivateProfileStruct function retrieves the data associated with the specified key in the given section of an initialization file. As it retrieves the data, the function calculates a checksum and compares it with the checksum calculated by the WritePrivateProfileStruct function when the data was added to the file.
Win32-based applications should store initialization information in the registry.
BOOL GetPrivateProfileStruct(
LPCTSTR lpszSection, |
// address of section name |
LPCTSTR lpszKey, |
// address of key name |
LPVOID lpStruct, |
// address of return buffer |
UINT uSizeStruct, |
// size of return buffer |
LPCTSTR szFile |
// address of initialization filename |
); |
If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero.
A section in the initialization file must have the following form:
[section]
key=data
.
.
.
Calls to private profile functions might be mapped to the registry instead of to the specified initialization files. 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 GetPrivateProfileStruct 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.
file: /Techref/os/win/api/win32/func/src/f37_3.htm, 6KB, , updated: 2000/4/7 12:19, local time: 2024/9/1 11:46,
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