Define the pixel output function.

::set_insert defines the function, with which pixels are displayed in the output window. It is e.g. possible for a pixel to overwrite the old value. In most of the cases there is a functional relationship between old and new values.

The definiton value is only valid for the valid window. Output procedures that honor Mode are e.g. ::disp_region, ::disp_polygon,::disp_circle.

Possible display functions are: 'copy' overwrite displayed pixels 'xor' display old "xor" new pixels 'not' complement displayed pixels

There may not be all functions available, depending on the physical display. However, "copy" is always available.

::set_insert returns H_MSG_TRUE if the paramter is correct and the window is valid. Otherwise an exception handling is raised.

::query_insert, ::get_insert

::disp_region

::get_insert, ::query_insert

System