doyle@b11.ingr.com (Doyle Davidson) (11/09/90)
I was debugging a Motif application that uses gadgets
that suddenly core dumps when built under Motif 1.1
(I personally never say it run under 1.0)
I discovered that the error was due to the use of
XtDisplay() and passing it a PushButtonGadget.
Further investigation reveals that the XtDisplay() macro
is redefined in <Xm/XmP.h> to handle gadgets but the application
was not including this file. I didn't think an application
needed too.
So my questions are:
1) Should I be including XmP.h in my application?
(Obviously yes, but am I SUPPOSED to?)
2) Should that macro (and potentially others) have been in Xm.h instead?
3) Won't it still blow up if I call the libXt function instead?
Doyle
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Doyle C. Davidson |
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------------------------------------------------------------------sydorow@bisco.kodak.com (Steve Sydorowicz) (11/09/90)
doyle@b11.ingr.com (Doyle Davidson) writes: >I discovered that the error was due to the use of >XtDisplay() and passing it a PushButtonGadget. > > [ small amount deleted ] > >So my questions are: > 1) Should I be including XmP.h in my application? > (Obviously yes, but am I SUPPOSED to?) > 2) Should that macro (and potentially others) have been in Xm.h instead? > 3) Won't it still blow up if I call the libXt function instead? Motif 1.1 is geared more towards the R4 Intrinsics. In R4, there are some changes/additions to some of the functions/macros. In the particular case you've mentioned, what you want to use is XtDisplayOfObject() which will work with widgets *and* gadgets. Another example is XtWindowOfObject(). You should not need to include a "P".h file. For more help, check an Xt manual (if you can get your hands on one) and pay attention to Section 12.5 "Widget Arguments to Intrinsics Routines." Good luck -- -------------------------------------------------------------------------------- Stephen J. Sydorowicz Azatar Computer Systems sydorow@bisco.kodak.com (716)726-5636 Opinions expressed are "mine and mine alone."