Change Static Image by condition

[lacunasolutions]

hi to all,

I learn more and more about wxPerl, but now I got stuck again.

I am using xrc files for building the GUI.
Now I have a Static bitmap (ID_BITMAP) in my Frame.
I would like to change the image (if a certain condition has been  
reached).

I know haow to set a value for example if I have a SpinControl . . .
$frame->FindWindow('ID_SPINCTRL1')->SetValue($actvolume);
but I cant figure out the syntax for an Bitmap image!


Here is the initial snipet of my code (runs on Mac OS X):

        my $app   = shift;
        my $xr = Wx::XmlResource->new();
        
        Wx::InitAllImageHandlers();
                
        $xr->InitAllHandlers();
        $xr->Load("$XRCFILE");
        my $frame = $xr->LoadFrame(undef, 'ID_WXFRAME');
                
        my $XID = \&Wx::XmlResource::GetXRCID;

        #set basic elements
	my $audio_on = Wx::Image->new("$localdir/audio-on.png",  
wxBITMAP_TYPE_PNG);
	my $audio_off = Wx::Image->new("$localdir/audio-off.png",  
wxBITMAP_TYPE_PNG);
        
#       . . .   removed some line for getting the system volume

        if( $actvolume == 0 ) {
                $frame->FindWindow('ID_BITMAP')->Set($audio_off);
        } else {
                $frame->FindWindow('ID_BITMAP')->Set($audio_on);
}

# . . . . rest of code comes here


Greetings Alex