Article View: borland.public.jbuilder.java.language
Article #17944Problems with graphic context
From: Christoph Happich
Date: Wed, 02 Sep 1998 00:00
Date: Wed, 02 Sep 1998 00:00
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Hi!
I"m getting a NullPointer Exception just by adding this line to my
component's constructor:
createImage(1,1).getGraphics();
I think it's because the graphic context is not available in unvisible
components. But, it should, because the context of the image has nothing
to do with the component's context.
I need that image for doube buffering. The buffer must be created BEFORE
my component is drawn.
Any ideas ?
Christoph
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<HTML>
Hi!
<BR>I"m getting a NullPointer Exception just by adding this line to my
component's constructor:
<BR> <TT>createImage(1,1).getGraphics();</TT>
<BR>I think it's because the graphic context is not available in unvisible
components. But, it should, because the context of the image has nothing
to do with the component's context.
<BR>I need that image for doube buffering. The buffer must be created BEFORE
my component is drawn.
<BR>Any ideas ?
<BR>Christoph</HTML>
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f74b3,c43cd982853305aa,start X-Google-Attributes: gidf74b3,public From: Christoph Happich <chappich@techfa.uni-bielefeld.de> Subject: Problems with graphic context Date: 1998/09/02 Message-ID: <35EDB43C.199BB68B@techfa.uni-bielefeld.de> X-Deja-AN: 387256148 Content-Type: multipart/alternative; boundary="------------B40269EF5EE923D5870713FD" Organization: Another Netscape Collabra Server User Mime-Version: 1.0 Newsgroups: borland.public.jbuilder.java.language