GetClassInfoEx
The GetClassInfoEx
function retrieves information about a window class, including the handle of
the small icon associated with the window class. The GetClassInfo function does not retrieve
the handle of the small icon.
BOOL GetClassInfoEx(
|
HINSTANCE hinst, |
// handle of
application instance |
|
LPCTSTR lpszClass, |
// address of class
name string |
|
LPWNDCLASSEX lpwcx |
// address of
structure for class data |
|
); |
|
Parameters
hinst
Identifies
the instance of the application that created the class. To retrieve information
about classes defined by Windows (such as buttons or list boxes), set this
parameter to NULL.
lpszClass
Points to a
null-terminated string containing the class name. The name must be that of a
preregistered class or a class registered by a previous call to the RegisterClass function. Alternatively,
this parameter can be an integer atom. If this parameter is an integer atom, it
must be a global atom created by a previous call to the GlobalAddAtom function. The atom, a
16-bit value less than 0xC000, must be in the low-order word of lpszClass;
the high-order word must be zero.
lpwcx
Points to a WNDCLASSEX structure that receives
the information about the class.
Return Values
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.
See Also