GetWindowClass

PATHMac OS 8 and 9 Developer Documentation > Human Interface Toolbox > Window Manager >

Programming With the Mac OS 8.5 Window Manager

GetWindowClass

Obtains the class of a window.



 
pascal OSStatus GetWindowClass (

                     WindowPtr window,

                     WindowClass *outClass);

window: A value of type WindowPtr . Pass a pointer to the window whose class you wish to obtain.
outClass: A pointer to a value of type WindowClass . On return, this value identifies the class of the specified window. See Window Class Constants for a list of possible window classes. If the window was not originally created using the function CreateNewWindow , the class pointed to by the outClass parameter is always identified by the constant kDocumentWindowClass .
function result: A result code. See Result Codes.

DISCUSSION

A window's class categorizes the window for purposes of display (that is, both the window's appearance and its display ordering) and tracking. A window's class cannot be altered once the window has been created.

VERSION NOTES

Available with Mac OS 8.5 and later.