NAME
XtAppAddBlockHook, XtRemoveBlockHook - register a block hook procedure
SYNTAX
XtBlockHookId XtAppAddBlockHook(XtAppContext app_context,
XtBlockHookProc proc, XtPointer client_data);
void XtRemoveBlockHook(XtBlockHookId id);
ARGUMENTS
app_context
Specifies the application context.
proc
Specifies the block hook procedure.
num_args
Specifies the application-specific data to be passed to the block hook.
DESCRIPTION
registers the specified procedure and returns an identifier for it.
The hook is called at any time in the future when the Intrinsics are
about to block pending some input.
Block hook procedures are removed automatically and the
is destroyed when the application context in which they were added is
destroyed.
removes the specified block hook procedure from the list in which it
was registered.
SEE ALSO
