Determines whether the document layout can be changed. This is a parameter of the VAPIM_VIEW
message.
#include <kvvapi.h> SendMessage(hWndVAPI, VAPIM_VIEW, VAPIMWP_VIEW_CANLAYOUT, (LPARAM) (BOOL*) lpbCanLayout );
Argument | Description |
---|---|
hWndVAPI
|
The handle of the VAPI window. |
lpbCanLayout
|
A pointer to a flag that returns TRUE or FALSE , depending on whether the document layout can be changed. |
SendMessage()
returns TRUE
if the call succeeds, in which case lpbCanLayout
returns TRUE
or FALSE
.SendMessage()
returns FALSE
if the call fails (for example, if there are invalid arguments or if no document is open), in which case lpbCanLayout
is undefined.Use this message to control the state of a Wrap to Window, Page Layout, or Window Width menu item or toolbar button.
|