[comp.sys.mac.hypercard] Using XCMDs to draw in Hypercard

wood@lclark.UUCP (Lynn Wood) (09/09/89)

  I am planning to write some xcmds that would receive some coordinates and
a field and then draw either a bar or pie graph at that location.  But, whatever
I draw with the xcmd disappears apparently whenever there is a screen update.
I tried saving the screenBits, but whatever I draw still disappears.  Does 
Hypercard keep its own BitMap somewhere, or am I missing something?

	-Lynn Wood
-- 
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  Lynn S. Wood - wood@lclark.uucp
\\ "Darn it!  Even in the future \\  (or) !tektronix!reed!lclark!wood
\\ nothing works!"  -Dark Helmet \\  Lewis & Clark College
\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\  Portland, OR

michael_alan_hauser@cup.portal.com (09/16/89)

Try drawing into a picture, putting it in the scrap, and then pasting it
into the card using a callback to DoMenu. It works but it's slow.

Michael Hauser
hauser@portal.cup.com