XtAppWarningMsg()XtAppWarningMsg()Name
XtAppWarningMsg - call the high-level warning handler.
Synopsis
void XtAppWarningMsg(app_context, name, type, class , default, params,
num_params)
XtAppContext app_context;
String name;
String type;
String class;
String default;
String *params;
Cardinal *num_params;
Inputs
app_context
Specifies the application context.
name Specifies the general kind of error.
type Specifies the detailed name of the error.
class Specifies the resource class.
default Specifies the default message to use if no message is found
in the database.
params Specifies an array of values to be inserted into the message.
num_params
Specifies the number of elements in params.
DescriptionXtAppWarningMsg() passes all of its arguments except app_context to the
installed high-level warning handler. The default high-level warning
handler is _XtDefaultWarningMsg(). It calls XtAppGetErrorDatabase‐
Text() to lookup a message of the specified name, type, and class in
the error database. If no such message is found, XtAppGetError‐
DatabaseText() returns the specified default message. In either case,
_XtDefaultWarningMsg() does a printf-style substitution of params into
the message, and passes the resulting text to the low-level warning
handler by calling XtWarning().
See XtAppGetErrorDatabaseText() for details on how messages are looked
up in the error database.
Usage
To report fatal error messages and exit, use XtAppErrorMsg(). To
change the high-level warning handler, use XtAppSetWarningMsgHandler().
Note that the num_params argument to this function is a Cardinal *, not
a Cardinal.
Although the Intrinsics interface allows separate error and warning
handlers for each application context, most implementations will sup‐
port only a single set of handlers. When a new handler is installed,
it will be used in all application contexts.
Example
The following code is from XtDisplayStringConversionWarning():
String params[2];
Cardinal num_params = 2;
params[0] = (String)from;
params[1] = (String)toType;
XtAppWarningMsg(XtDisplayToApplicationContext(dpy),
XtNconversionError, "string", XtCXtToolkitError,
"Cannot convert string to type %s",
params, &num_params);
See AlsoXtAppError(1), XtAppErrorMsg(1), XtAppSetErrorHandler(1), XtAppSetEr‐
rorMsgHandler(1), XtAppSetWarningHandler(1), XtAppSetWarningMsgHan‐
dler(1), XtAppWarning(1),
XtErrorHandler(2), XtErrorMsgHandler(2).
Xt - Error Handling XtAppWarningMsg()
