blit

Copy from a source bitmapped device context to this one.

• (send a-wx:dc blit xdest ydest width height source xsrc ysrc logical-func) -> boolean
      xdest : inexact real
      ydest : inexact real
      width : inexact real
      height : inexact real
      source : wx:canvas-dc% object
      xsrc : inexact real
      ysrc : inexact real
      logical-func = wx:const-copy : small integer

  Copy from a source bitmapped device context to this one, specifying the destination coordinates, size of area to copy, source DC, source coordinates, and logical function (see set-logical-function).

  In addition to the normal logical functions, logical-func can be wx:const-colour. This mode is like wx:const-copy except that black pixels in the source images are translated to the current pen's color in the destination, while white pixels are copies as white. The color transformation is undefined for other colors in the source image.

  Restrictions on the magnitude of drawing coordinates are described with wx:dc%.