GetClassName function
Retrieves the name of the class to which the specified window belongs.
Syntax
int WINAPI GetClassName( _In_ HWND hWnd, _Out_ LPTSTR lpClassName, _In_ int nMaxCount );
Parameters
- hWnd [in]
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Type: HWND
A handle to the window and, indirectly, the class to which the window belongs.
- lpClassName [out]
-
Type: LPTSTR
The class name string.
- nMaxCount [in]
-
Type: int
The length of the lpClassName buffer, in characters. The buffer must be large enough to include the terminating null character; otherwise, the class name string is truncated to
nMaxCount-1characters.
Return value
Type: Type: int
If the function succeeds, the return value is the number of characters copied to the buffer, not including the terminating null character.
If the function fails, the return value is zero. To get extended error information, call GetLastError.
Requirements
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Minimum supported client |
Windows 2000 Professional [desktop apps only] |
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Minimum supported server |
Windows 2000 Server [desktop apps only] |
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Header |
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Library |
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DLL |
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Unicode and ANSI names |
GetClassNameW (Unicode) and GetClassNameA (ANSI) |
See also
- Reference
- FindWindow
- GetClassInfo
- GetClassLong
- GetClassWord
- Conceptual
- Window Classes