A graphics port.
graphics-state parameters passed as keyword arguments.
A real number in the inclusive range [0,1], or
The default value of from-x and from-y is 0. The from-width and from-height arguments default to the size of the image. In addition, to-width defaults to from-width and to-height defaults to from-height .
:compatible, graphics state translation is guaranteed to be supported but support for scaling and rotation are library dependent. Specifically, scaling is supported in the Windows, Cocoa and GTK+ implementations, but not on X11/Motif.
:quality, the target coordinates are fully transformed according to the transformation in the graphics-state.
For more information about drawing-mode , see The drawing mode and anti-aliasing.
, if non-nil, is a blending factor that applies to the whole image, in the Windows and Cocoa implementations, but not on X11/Motif or GTK+. The value 0 means use only the target (that is, do not draw anything) and the value 1 means use only the source (that is, normal drawing). Intermediate real values mean use proportions of both the target and source. The value
nil also means normal drawing, and this is the default value.
On Microsoft Windows, if the image was loaded from a .ico file then
and the graphics-state
when drawing the image, and also
(gp:draw-image port image 10 20)
CAPI User Guide and Reference Manual (Unix version) - 3 Aug 2017