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GetClassInfoEx

The GetClassInfoEx function retrieves information about a window class, including the handle of the small icon associated with the window class.

VB4-32,5,6
Declare Function GetClassInfoEx Lib "user32" Alias "GetClassInfoExA" (ByVal hInstance As Long, ByVal lpClassName As String, lpWndClass As WNDCLASSEX) As Long

Operating Systems Supported
Requires Windows NT 3.5(1) or later; Requires Windows 95 or later

Library
User32

Parameter Information
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.

Examples

Related Functions

 

 


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