VAPIMWP_VIEW_CANROTATE
Determines whether the document can be rotated. This is a parameter of the VAPIM_VIEW
message.
Syntax
#include <kvvapi.h> SendMessage(hWndVAPI, VAPIM_VIEW, VAPIMWP_VIEW_CANROTATE, (LPARAM) (BOOL*) lpbCanRotate );
Arguments
Argument | Description |
---|---|
hWndVAPI
|
The handle of the VAPI window. |
lpbCanRotate
|
A pointer to a flag that returns TRUE or FALSE , depending on whether the document can be rotated. |
Returns
SendMessage()
returnsTRUE
if the call succeeds, in which caselpbCanRotate
returnsTRUE
orFALSE
.SendMessage()
returnsFALSE
if the call fails (for example, if there are invalid arguments or if no document is open), in which caselpbCanRotate
is undefined.
Discussion
Use this message to control the state of a Rotate menu item or toolbar button.