GetUserDefaultGeoName function (winnls.h)
Retrieves the two-letter International Organization for Standardization (ISO) 3166-1 code or numeric United Nations (UN) Series M, Number 49 (M.49) code for the default geographical location of the user.
Syntax
int GetUserDefaultGeoName(
[out] LPWSTR geoName,
[in] int geoNameCount
);
Parameters
[out] geoName
Pointer to a buffer in which this function should write the null-terminated two-letter ISO 3166-1 or numeric UN M.49 code for the default geographic location of the user.
[in] geoNameCount
The size of the buffer that the geoName parameter specifies. If this value is zero, the function only returns the number of characters that function would copy to the output buffer, but does not write the name of the default geographic location of the user to the buffer.
Return value
The number of characters the function would copy to the output buffer, if the value of the geoNameCount parameter is zero. Otherwise, the number of characters that the function copied to the buffer that the geoName parameter specifies.
Zero indicates that the function failed. To get extended error information, call GetLastError, which can return one of the following error codes:
| Return code | Description |
|---|---|
|
A parameter value was not valid. |
|
The function could not read information from the registry. |
|
The buffer that the geoName parameter specifies is too small for the string. |
Remarks
For information about two-letter ISO 3166-1 codes, see Country Codes - ISO 3166. For information about numeric UN M.49 codes, see Standard country or area codes for statistical use (M49).
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 10, version 1709 [desktop apps only] |
| Minimum supported server | Windows Server 2016 [desktop apps only] |
| Target Platform | Windows |
| Header | winnls.h (include Windows.h) |
| Library | Kernel32.lib |
| DLL | Kernel32.dll |