Determines whether the document can be rotated. This is a parameter of the VAPIM_VIEW
message.
#include <kvvapi.h> SendMessage(hWndVAPI, VAPIM_VIEW, VAPIMWP_VIEW_CANROTATE, (LPARAM) (BOOL*) lpbCanRotate );
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. |
SendMessage()
returns TRUE
if the call succeeds, in which case lpbCanRotate
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 lpbCanRotate
is undefined.Use this message to control the state of a Rotate menu item or toolbar button.
|