Retrieves information about a window class, including a handle to the small icon associated with the window class. The GetClassInfo function does not retrieve a handle to the small icon.
BOOL GetClassInfoExA( HINSTANCE hInstance, LPCSTR lpszClass, LPWNDCLASSEXA lpwcx );
A handle to the instance of the application that created the class. To retrieve information about classes defined by the system (such as buttons or list boxes), set this parameter to NULL.
The class name. The name must be that of a preregistered class or a class registered by a previous call to the RegisterClass or RegisterClassEx function. Alternatively, this parameter can be a class atom created by a previous call to RegisterClass or RegisterClassEx. The atom must be in the low-order word of lpszClass; the high-order word must be zero.
A pointer to a WNDCLASSEX structure that receives the information about the class.
Type: Type: BOOL
If the function finds a matching class and successfully copies the data, the return value is nonzero.
If the function does not find a matching class and successfully copy the data, the return value is zero. To get extended error information, call GetLastError.
|Minimum supported client||Windows 2000 Professional [desktop apps only]|
|Minimum supported server||Windows 2000 Server [desktop apps only]|
|Header||winuser.h (include Windows.h)|