VAPIMWP_INIT_GETHWNDVIEWER

Gets the handle of the Viewer window. This is a parameter of the VAPIM_INIT message.

Syntax

#include <kvvapi.h>
SendMessage(hWndVAPI, VAPIM_INIT, VAPIMWP_INIT_GETHWNDVIEWER,
           (LPARAM) (HWND*) lphWndViewer );

Arguments

Argument Description
hWndVAPI The handle of the VAPI window.
lphWndViewer A pointer to a handle that returns the Viewer window handle.

Returns

SendMessage() returns TRUE if the Viewer window exists; otherwise it returns FALSE.

Discussion

You must send this message after you send the VAPIMWP_INIT_OPEN_DOCUMENT message to open the document, otherwise the Viewer window does not exist yet.