Function CDM_SpanSetGetElements
|
|
Definition: | #include <CDM.h> |
---|
|
Prototype: | int CDM_SpanSetGetElements(CDM_SpanSet SpanSet, int *objcPtr, CDM_Span **objvPtr);
|
---|
Arguments: | SpanSet: The Span set whose elements will be placed in the array. (CDM_SpanSet) objcPtr: A pointer to an integer, where the number of Span objects placed in the array will be saved. (int *) objvPtr: A location where the pointer to the array of Span objects will be stored. (CDM_Span **)
|
---|
|
|
Description:
This function returns a count and a pointer to an array of the elements
(Spans) in an Span set object (of type CDM_SpanSet).
It returns the count by storing it in the address pointed by the "objcPtr"
parameter (of type int *). Similarly, it returns the array pointer
by storing it in the address pointed by the "objvPtr" parameter (of type
CDM_Span **). The memory pointed to is managed by CDM and should
not be freed by the caller. In case of an error, TCL_ERROR will be returned and an error message will
be left in the current active Tcl interpreter (CDM_Interp).
Otherwise TCL_OK will be returned after storing the count and
array pointer.
Return Value:
This function returns a count and a pointer to an array of the elements
(Spans) in an Span set object (of type CDM_SpanSet).
It returns the count by storing it in the address pointed by the "objcPtr"
parameter (of type int *). Similarly, it returns the array pointer
by storing it in the address pointed by the "objvPtr" parameter (of type
CDM_Span **). The memory pointed to is managed by CDM and should
not be freed by the caller.
In case of an error, TCL_ERROR will be returned and an error message
describing the error will be left at the current Tcl interpreter
(CDM_Interp). Otherwise TCL_OK will be returned.
Notes:
Usage example:
int objc;
CDM_Span **objv;
CDM_SpanSet set = CDM_GetSpans(Annotation);
int status = CDM_SpanSetGetElements(set, objc, objv);
if (status != TCL_OK) {
// An error occured. What is the error message?
Tcl_interp *interp = CDM_GetActiveInterpreter();
if (interp) {
const char* msg = Tcl_GetStringResult(interp);
}
}
// Make an iteration over all Spans...
for (int i = 0; i < objc, i++) {
// Now, objv[i] is an Span...
}
See Also:
CDM_AttributeSetGetElements, CDM_AnnotationSetGetElements
Generated by: petasis@aias on Wed Aug 16 10:31:57 PM EEST 2006.