GetClassInfo
The GetClassInfo
function retrieves information about a window class.
The GetClassInfo
function has been superseded by the GetClassInfoEx function. You can still
use GetClassInfo, however, if you do not need information about the
class small icon.
BOOL GetClassInfo(
|
HINSTANCE hInstance, |
// handle of
application instance |
|
LPCTSTR lpClassName, |
// address of class
name string |
|
LPWNDCLASS lpWndClass |
// address of
structure for class data |
|
); |
|
Parameters
hInstance
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.
lpClassName
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 so, 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 lpClassName; the high-order
word must be zero.
lpWndClass
Points to a WNDCLASS 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 fails, the return value is zero. To get extended error information,
call GetLastError.
See Also