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Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| Yes
| Import Library
| kernel32.lib
| Header File
| winbase.h
| Unicode
| WinNT
| Platform Notes
| None
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GetPrivateProfileInt
The GetPrivateProfileInt function retrieves an integer associated with a key in the specified section
of the given initialization file. This function is provided for compatibility
with 16-bit Windows-based applications. Win32-based applications should store
initialization information in the registry.
UINT GetPrivateProfileInt(
LPCTSTR lpAppName,
| // address of section name
| LPCTSTR lpKeyName,
| // address of key name
| INT nDefault,
| // return value if key name is not found
| LPCTSTR lpFileName
| // address of initialization filename
| );
|
|
Parameters
lpAppName
Points to a null-terminated string containing the section name in the
initialization file.
lpKeyName
Points to the null-terminated string containing the key name whose value is to
be retrieved. This value is in the form of a string; the GetPrivateProfileInt function converts the string into an integer and returns the integer.
nDefault
Specifies the default value to return if the key name cannot be found in the
initialization file.
lpFileName
Points to a null-terminated string that names the initialization file. If this
parameter does not contain a full path to the file, Windows searches for the
file in the Windows directory.
Return Values
If the function succeeds, the return value is the integer equivalent of the
string following the specified key name in the specified initialization file. If
the key is not found, the return value is the specified default value. If the
value of the key is less than zero, the return value is zero.
Remarks
The function searches the file for a key that matches the name specified by
the lpKeyName parameter under the section name specified by the lpAppName parameter. A section in the initialization file must have the following form:
[section]
key=value
.
.
.
The GetPrivateProfileInt function is not case-sensitive; the strings in lpAppName and lpKeyName can be a combination of uppercase and lowercase letters.
An application can use the GetProfileInt function to retrieve an integer value from the WIN.INI file.
Windows NT:
Calls to private profile functions may be mapped to the registry instead of to
the specified initialization files. This mapping occurs when the
initialization file and section are specified in the registry under the following keys:
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 GetPrivateProfileInt 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:
- Look in the registry for the name of the initialization file, say myfile.ini,
under IniFileMapping:
HKEY_LOCAL_MACHINE\Software\Microsoft\
Windows NT\CurrentVersion\IniFileMapping\myfile.ini
- Look for the section name specified by lpAppName. This will be a named value under myfile.ini, or a subkey of myfile.ini, or
will not exist.
- If the section name specified by lpAppName is a named value under myfile.ini, then that value specifies where in the
registry you will find the keys for the section.
- If the section name specified by lpAppName is a subkey of myfile.ini, then named values under that subkey specify where
in the registry you will find the keys for the section. If the key you are
looking for does not exist as a named value, then there will be an unnamed value
(shown as "<No Name>") that specifies the default location in the registry where
you will find the key.
- If the section name specified by lpAppName does not exist as a named value or as a subkey under myfile.ini, then there
will be an unnamed value (shown as "<No Name>") under myfile.ini that specifies
the default location in the registry where you will find the keys for the
section.
- If there is no subkey for myfile.ini, or if there is no entry for the section
name, then look for the actual myfile.ini on the disk and read its contents.
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.
See Also
GetProfileInt, WritePrivateProfileString
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