VSConstants.CPDN_SELCHANGED Field 
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Inform of selection change on page.
public: int CPDN_SELCHANGED = 2304;int CPDN_SELCHANGED = 2304;public const int CPDN_SELCHANGED = 2304;val mutable CPDN_SELCHANGED : intPublic Const CPDN_SELCHANGED As Integer  = 2304Field Value
Value = 2304Remarks
wParam is unused and lParam is equal to HWND hwndPageDialog.