imgGetAttribute
Usage
rval imgGetAttribute(uInt32 void_id, uInt32 attr, void* value);
Purpose
Returns an attribute value.
Parameters
| Name | Type | Direction |
| void_id | uInt32 | input |
| attr | uInt32 | input |
| value | void* | output |
| rval | Int32 | output |
Parameter Discussion
void_id: valid SESSION_ID or INTERFACE_ID.
attr: attribute to set. Refer to Attributes for valid types.
value: pointer to the variable that receives the attribute.
Return Value
This function returns 0 on success. On failure, this function returns an error code. For information about the error code, call imgShowError.