gtk pixmap with transparent background question - What am I doing wrong???

[Kimet Adil <ksadil bigpond com>]

Hi,

I am trying to witre an app that has animated gtkpixmaps crawling over the 
page. I am using Anjust+Glade, so there is a lot of code. It all works well 
except I want transparent backgrounds and they stay white, and cover each 
other if they collide. I know this is a long email but I just dont know how 
to ask the question completely without all the code Here are the key 
functions:


struct pickies {
        
        GdkPixmap *pm;
        GdkBitmap *bm;
        struct pickies *next;
                
};
        
        struct pickies p1,p2,p3,x1,x2,x3,x4,*xs,*s;
        GdkPixmap *pm1;

        int tx=250,ty=250;
        static int vx=5, vy=0;

/* load the pixmaps

void on_button1_clicked  (GtkButton       *button,    gpointer   user_data)
{
 GtkStyle *style;
        GtkWidget *pixmapa,*pixmapb;
        GtkWidget *window;
        pixmapa = lookup_widget(button,"pixmap2");
        pixmapb = lookup_widget(button,"pixmap1");
        window=lookup_widget(button,"window1");
         style = gtk_widget_get_style( window );
    p1.pm = gdk_pixmap_create_from_xpm( window->window,&p1.bm,NULL,"930e1.xpm"
);
    p1.next=&p2;
        p2.pm = gdk_pixmap_create_from_xpm( window->window, &p2.bm,NULL,"930e2.xpm" 
);      
    p2.next=&p3;
        p3.pm = gdk_pixmap_create_from_xpm( window->window, 
&p3.bm,&style->bg[GTK_STATE_NORMAL],"930e3.xpm" );      
    p3.next=&p1;
        s=&p1;
        
        
    x1.pm = gdk_pixmap_create_from_xpm( window->window, 
x1.bm,NULL,"XPB4100-1.xpm" );
    x1.next=&x2;
        x2.pm = gdk_pixmap_create_from_xpm( window->window, 
x2.bm,NULL,"XPB4100-2.xpm" );   
    x2.next=&x3;
        x3.pm = gdk_pixmap_create_from_xpm( window->window, 
x3.bm,NULL,"XPB4100-3.xpm" );   
    x3.next=&x4;
        x4.pm = gdk_pixmap_create_from_xpm( window->window, 
x4.bm,NULL,"XPB4100-4.xpm" );   
    x4.next=&x1;        
        xs=&x1; 
        
        
        
}

void anim(GtkWidget *button2)
{
        GtkWidget *pixmapc;
        GtkWidget *window;
        GdkPixmap *pmu;
        GdkBitmap *bmu;
        s=s->next;
        pmu=s->pm;
        bmu=s->bm;
        pixmapc = lookup_widget(button2,"pixmap2");
        gtk_pixmap_set(pixmapc,pmu,bmu);
        gtk_widget_show(pixmapc);
}


void movePM(GtkWidget *widget)
{
GtkPixmap *pixmap2;
tx=tx+vx;
        if(tx>500){
        vx=vx*-1;
        }
        if(tx<50){
        vx=vx*-1;
        }
        ty=ty+vy;
        if(ty>500){
        vy=vy*-1;
        }
        if(ty<50){
        vy=vy*-1;
        }
        pixmap2 = lookup_widget(widget,"pixmap2"); 
 gtk_widget_set_uposition (pixmap2, tx, ty);
}


void animXPB(GtkWidget *button2)
{
        GtkWidget *pixmapc;
        GtkWidget *window;
        GdkPixmap *pmu;
        xs=xs->next;
        pmu=xs->pm;
        pixmapc = lookup_widget(button2,"pixmap1");
        gtk_pixmap_set(pixmapc,xs->pm,xs->bm);
        //gdk_pixmap_unref(pmu);
        gtk_widget_show(pixmapc);
}


void on_button2_clicked (GtkButton       *button,
                                        gpointer         user_data)
{
        GtkPixmap *pixmapc;
        gtk_timeout_add(140,anim,button);
        gtk_timeout_add(700,animXPB,button);
        pixmapc = lookup_widget(button,"pixmap2");
        gtk_timeout_add(90,movePM,button);
        
        }

Thanks,
Kim