Article View: comp.windows.interviews
Article #541Re: scrolling of TBScollBox
From: Mark Linton
Date: Thu, 27 Aug 1992 17:01
Date: Thu, 27 Aug 1992 17:01
37 lines
1686 bytes
1686 bytes
In article <1992Aug27.062744.7444@tom.rz.uni-passau.de>, ringel@forwiss.uni-passau.de (Joerg Ringel) writes:
|> I've a class with a TBScrollBox (TextShow).
|> For this class I've defined the following function:
|>
|> class TextShow : public InputHandler {
|>
|> ....
|> ....
|> protected:
|> TBScollbox* box;
|> ....
|> }
|>
|> inline void TextShow::scroll_to_end()
|>
|> { box->scroll_to(Dimension_Y, Coord(0)); }
|>
|>
|> My problem is that I receive always:
|>
|> signal SEGV (no mapping at the fault address) in allocate__7ivPatchFP8ivCanvasRC12ivAllocationR11ivExtension at 0xf766b0f0
|> allocate__7ivPatchFP8ivCanvasRC12ivAllocationR11ivExtension+0x34: ld [%o1 + 4], %o2
|> (xdbx) where
|> allocate__7ivPatchFP8ivCanvasRC12ivAllocationR11ivExtension() at 0xf766b0f0
|> reallocate__17ivTBScrollBoxImplFv() at 0xf76871c8
|> refresh__17ivTBScrollBoxImplFv() at 0xf7686eec
|> impl__13ivTBScrollBoxCFv() at 0xf7686ce0
|> scroll_to__13ivTBScrollBoxFUif() at 0xf7686bec
|> scroll_to_end__8TextShowFv(__0this = 0xe9208), line 469 in "xrapiv/rapiv.c"
TBScrollBoxImpl::reallocate should have a test
if (canvas_ == nil) {
return;
}
at the beginning.
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Path: arc1-ca.pugleaf.net!sparky!uunet!dtix!darwin.sura.net!mips!odin!fido!marktwain.rad.sgi.com!linton From: linton@marktwain.rad.sgi.com (Mark Linton) Newsgroups: comp.windows.interviews Subject: Re: scrolling of TBScollBox Message-ID: <p3q3d8s@fido.asd.sgi.com> Date: 27 Aug 92 17:01:13 GMT References: <1992Aug27.062744.7444@tom.rz.uni-passau.de> Sender: news@fido.asd.sgi.com (Usenet News Admin) Reply-To: linton@marktwain.rad.sgi.com (Mark Linton) Organization: sgi Lines: 37