Determines whether the multimedia document can be played. This is a parameter of the VAPIM_VIEW
message.
#include <kvvapi.h> SendMessage(hWndVAPI, VAPIM_VIEW, VAPIMWP_VIEW_CANPLAY, (LPARAM) (BOOL*) lpbCanPlay );
Argument |
Description |
---|---|
|
The handle of the VAPI window. |
|
A pointer to a flag that returns |
SendMessage()
returns TRUE
if the call succeeds, in which case lpbCanPlay
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 lpbCanPlay
is undefined.Use this message to control the state of a Play menu item or toolbar button.
|