---
name: "XtAppSetFallbackResources"
section: "3x"
platform: "linux"
package: "libxt-dev"
version: "4.3.0.dfsg.1-14sarge7"
release: "Debian 3.1 (Sarge)"
platforms: ["linux"]
url: "https://new.carta.tech/XtAppSetFallbackResources/3x"
---

# XtAppSetFallbackResources(3x)

set fallback resources

## NAME

XtAppSetFallbackResources - set fallback resources

## SYNTAX

void XtAppSetFallbackResources(XtAppContext *app\_context*, String\* *specification\_list*);

## ARGUMENTS

- *app\_context*

  Specifies the application context.

- *specification\_list*

  Specifies a NULL-terminated list of resource specifications to pre-load the database, or NULL.

## DESCRIPTION

Each entry in *specification\_list* points to a string in the format *XrmPutLineResource*. following a call to *XtAppSetFallbackResources*, when a resource database is being created for a particular screen and the Intrinsics are not able to find or read an application-specific class resource file and if *specification\_list* is not NULL the resource specification in *specification\_list* will be merged into the screen resource database in place of the application-specific class resource file. *XtAppSetFallbackResources* is not required to copy *specification\_list*; the caller must ensure that the contents of the list and the strings addressed by the list remain valid until all displays are initialized or until *XtAppSetFallbackResources* is called again. The value NULL for *specification\_list* removes any previous fallback resource specification for the application context. The intended use for fallback resources is to provide a minimal number of resources that will make the application usable (or at least terminate with helpful diagnostic messages) when some problem exists in finding  and loading the application defaults file.

## SEE ALSO

*X Toolkit Intrinsics - C Language Interface*\
 *Xlib - C Language X Interface*