Trick: Change toolbar status(Symbian/UIQ)

While you develop program such as streaming media player ,you want the toolbar which contains PLAY(RESUME)/PAUSE/STOP to switch status among playback/pause/stop.For example,when stream ends,you need to enable PLAY button and disable PAUSE/STOP buttons.The following code segment demonstates this kind of use:

void CStreamClientAppUi::SetToolbarStatusAndDraw()

{

TBool dimPlay=EFalse;

TBool dimPause=ETrue;

TBool dimStop=ETrue;

iEikonEnv->AppUiFactory()->ToolBar()->DimCommand(EMPCmdPlayStream,dimPlay);

iEikonEnv->AppUiFactory()->ToolBar()->DimCommand(EMPCmdPauseStream,dimPause);

iEikonEnv->AppUiFactory()->ToolBar()->DimCommand(EMPCmdStopStream,dimStop);

iEikonEnv->AppUiFactory()->ToolBar()->DrawNow(); //You NEED this line

}