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From: cjmchale@cs.tcd.ie (Ciaran McHale)
Newsgroups: comp.windows.x
Subject: Re: X11R4: libXt GetResources(): Possible bug.
Message-ID: <1991Feb8.230826.22326@cs.tcd.ie>
Date: 8 Feb 91 23:08:26 GMT
References: <1012@amix.commodore.com>
Organization: DSG, Dept. of Comp. Sci., Trinity College, Dublin.
Lines: 64

In <1012@amix.commodore.com> ag@amix.commodore.com (Keith Gabryelski) writes:
>*--------------------------------------*
>    static Boolean Warnings;
>
>    static XtResource resources[] =
>    {
>	{
>	    "warnings", "Warnings", XtRBoolean, sizeof(Boolean),
>	    (Cardinal) &Warnings, XtRImmediate, (caddr_t)0,
>	},
>    };
>
>    main()
>    {
>	XtGetApplicationResources(Shell, NULL, resources, XtNumber(resources),
>				  NULL, 0);
>    }
>*--------------------------------------*
>
>[Keith recognises that the above code is bugged and asks for a fix]

You should have "Warnings" as a member of a structure, rather
than a global variable. The second parameter to
XtGetApplicationResources() should be a pointer to this
structure and in your resources[] array you specify the offset
of "Warnings" within the structure. Here's example code to show
you what I mean.

----start code----
struct resources_dest_type {
	unsigned long	sea_colour,
			land_colour;
	... /* other resources */
};
resources_dest_type	resources_dest;
#define	offset(member)		XtOffsetOf(resources_dest, member)

static XtResource resources[] = {
    {"sea", "Sea", XtRPixel, sizeof(Pixel),
	 offset(sea_colour), XtRString, "SkyBlue"},
    {"land", "Land", XtRPixel, sizeof(Pixel),
	 offset(land_colour), XtRString, "MediumAquamarine"},
    ... /* other resources */
};

main() {
	...
	XtGetApplicationResources(a_widget, &resources_dest,
				  resources,
				  XtNumber(resources),
				  NULL, 0);
	...
}
----end code----


I hope that's of some help.

Ciaran.
-- 
Ciaran McHale		"Verbosity says it all"			      ____
Department of Computer Science, Trinity College, Dublin 2, Ireland.   \  /
Telephone: +353-1-772941 ext 1538	FAX: +353-1-772204	       \/
Telex: 93782 TCD EI			email: cjmchale@cs.tcd.ie