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