void Graph_DrawImageEx(VMINT layer_hdl ,VMCHAR*name,
                                                             VMINT x,VMINT y,VMINT width,VMINT height,VMINT trans)
{
   VMUINT8 *cvs_buf,*layer_buf;
 VMINT cvs_hdl;
 struct frame_prop * img_prop = NULL;  

if ((res = vm_load_resource(name, &size)) == NULL) {
  vm_log_error("load resource failed!");
  return ;
 }
cvs_hdl =vm_graphic_load_image_resized(res,size,width,height);
 
/* 释放图片资源 */
 vm_free(res);
/* 获取画布属性*/
 img_prop = vm_graphic_get_img_property(cvs_hdl, 1);
 
 /* 获取画布地址 */
 cvs_buf= vm_graphic_get_canvas_buffer(cvs_hdl);
 
 /* 获取层地址 */
 layer_buf=vm_graphic_get_layer_buffer(layer_hdl);

/*画图：从画布到层*/
vm_graphic_blt_ex(layer_buf, x, y,cvs_buf, 0, 0, img_prop->width, img_prop->height, 1,trans);

 vm_graphic_release_canvas(cvs_hdl);
}