NAME
XmGetSecondaryResourceData — A function that provides access to
secondary widget resource data
SYNOPSIS
#include <Xm/Xm.h>
Cardinal XmGetSecondaryResourceData(
WidgetClass widget_class,
XmSecondaryResourceData **secondary_data_return);
DESCRIPTION
Some Motif widget classes (such as Gadget, Text, and VendorShell) have
resources that are not accessible through the functions
XtGetResourceList and XtGetConstraintResourceList. In order to
retrieve the descriptions of these resources, an application must use
XmGetSecondaryResourceData.
When a widget class has such resources, this function provides
descriptions of the resources in one or more data structures.
XmGetSecondaryResourceData takes a widget class argument and returns
the number of these data structures associated with the widget class.
If the return value is greater than 0 (zero), the function allocates
and fills an array of pointers to the corresponding data structures.
It returns this array at the address that is the value of the
secondary_data_return argument.
The type XmSecondaryResourceData is a pointer to a structure with two
members that are useful to an application: resources, of type
XtResourceList, and num_resources, of type Cardinal. The resources
member is a list of the widget resources that are not accessible using
Xt functions. The num_resources member is the length of the resources
list.
If the return value is greater than 0 (zero),
XmGetSecondaryResourceData allocates memory that the application must
free. Use XtFree to free the resource list in each structure (the
value of the resources member), the structures themselves, and the
array of pointers to the structures (the array whose address is
secondary_data_return).
widget_class
Specifies the widget class for which secondary resource data
is to be retrieved.
secondary_data_return
Specifies a pointer to an array of XmSecondaryResourceData
pointers to be returned by this function. If the widget
class has no secondary resource data, for example, if the
value returned by the function is 0 (zero), the function
returns no meaningful value for this argument.
RETURN
Returns the number of secondary resource data structures associated
with this widget class.
EXAMPLE
The following example uses XmGetSecondaryResourceData to print the
names of the secondary resources of the Motif Text widget and then
frees the data allocated by the function:
XmSecondaryResourceData * block_array;
Cardinal num_blocks, i, j;
if (num_blocks = XmGetSecondaryResourceData (xmTextWidgetClass,
&block_array)) {
for (i = 0; i < num_blocks; i++) {
for (j = 0; j < block_array[i]->num_resources; j++) {
printf("%s\n", block_array[i]->resources[j].resource_name);
}
XtFree((char*)block_array[i]->resources);
XtFree((char*)block_array[i]);
}
XtFree((char*)block_array);
}
XmGetSecondaryResourceData(library call)