PSN_QUERYCANCEL  1CYD.RP 

The PSN_QUERYCANCEL notification message indicates that the user chose the Cancel button. This notification message is sent in the form of a WM_NOTIFY1MZT7BR message.

PSN_QUERYCANCEL

lpnmhdr = (NMHDR FAR *) lParam;

Parameters

lpnmhdr

Pointer to an NMHDR structure. The hwndFrom member is the handle of the property sheet.

Return Values

Returns TRUE to prevent the cancel operation or FALSE to allow it.

Remarks

A property sheet page can use this notification message to ask the user to verify the cancel operation.

See Also