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lightning-sunbird  0.9+nobinonly
Public Member Functions | Protected Attributes
nsPrinterListEnumerator Class Reference
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List of all members.

Public Member Functions

 nsPrinterListEnumerator ()
virtual ~nsPrinterListEnumerator ()
NS_DECL_ISUPPORTS
NS_DECL_NSISIMPLEENUMERATOR
NS_IMETHOD 
Init ()
boolean hasMoreElements ()
 Called to determine whether or not the enumerator has any elements that can be returned via getNext().
nsISupports getNext ()
 Called to retrieve the next element in the enumerator.

Protected Attributes

PRUnichar ** mPrinters
PRUint32 mCount
PRUint32 mIndex

Detailed Description

Definition at line 154 of file nsPrintOptionsImpl.cpp.


Constructor & Destructor Documentation

Definition at line 175 of file nsPrintOptionsImpl.cpp.

                                                 :
    mPrinters(nsnull), mCount(0), mIndex(0)
{
}

Definition at line 180 of file nsPrintOptionsImpl.cpp.

{
  if (!mPrinters)
    return;

  PRUint32 i;
  for (i = 0; i < mCount; i++ ) {
    nsMemory::Free(mPrinters[i]);
  }
  nsMemory::Free(mPrinters);
}

Member Function Documentation

nsISupports nsISimpleEnumerator::getNext ( ) [inherited]

Called to retrieve the next element in the enumerator.

The "next" element is the first element upon the first call. Must be pre-ceeded by a call to hasMoreElements() which returns PR_TRUE. This method is generally called within a loop to iterate over the elements in the enumerator.

See also:
hasMoreElements()
Returns:
NS_OK if the call succeeded in returning a non-null value through the out parameter. NS_ERROR_FAILURE if there are no more elements to enumerate.
the next element in the enumeration.

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Called to determine whether or not the enumerator has any elements that can be returned via getNext().

This method is generally used to determine whether or not to initiate or continue iteration over the enumerator, though it can be called without subsequent getNext() calls. Does not affect internal state of enumerator.

See also:
getNext()
Returns:
PR_TRUE if there are remaining elements in the enumerator. PR_FALSE if there are no more elements in the enumerator.

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Definition at line 195 of file nsPrintOptionsImpl.cpp.

{
  nsresult rv;
  nsCOMPtr<nsIPrinterEnumerator> printerEnumerator;

  printerEnumerator = do_CreateInstance(kCPrinterEnumerator, &rv);
  if (NS_FAILED(rv))
    return rv;

  return printerEnumerator->EnumeratePrinters(&mCount, &mPrinters);
}

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Member Data Documentation

Definition at line 171 of file nsPrintOptionsImpl.cpp.

Definition at line 172 of file nsPrintOptionsImpl.cpp.

Definition at line 170 of file nsPrintOptionsImpl.cpp.


The documentation for this class was generated from the following file: