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