/* int GetCopyCount()
* get how many copies need to print currently
*/
public static int GetCopyCount()
{
if (_copyCountHandle != IntPtr.Zero)
{
try
{
//get MSAA interface for copy count.
Win32API.AccessibleObjectFromWindow(_copyCountHandle, (int)Win32API.IACC.OBJID_CLIENT, ref Win32API.IACCUID, ref _paccCopyCount);
if (_paccCopyCount != null)
{
string countStr = _paccCopyCount.get_accValue(_selfID);
//if string is not null, convert to int, else return -1.
return(countStr == null ? -1 : int.Parse(countStr));
}
}
catch
{
return(-1);
}
}
return(-1);
}
/* IAccessible GetIAccPrinterList()
* get the MSAA interface for printer list.
*/
private static IAccessible GetIAccPrinterList()
{
if (_printerListHandle != IntPtr.Zero)
{
Win32API.AccessibleObjectFromWindow(_printerListHandle, (int)Win32API.IACC.OBJID_CLIENT, ref Win32API.IACCUID, ref _paccPrintList);
return(_paccPrintList);
}
return(null);
}
/* void SetCopyCount(int number)
* Set how many copies we need to print.
* return true is success, else return false.
*/
public static bool SetCopyCount(int number)
{
if (_copyCountHandle != IntPtr.Zero && number >= 0)
{
try
{
//get MSAA interface for copy count.
Win32API.AccessibleObjectFromWindow(_copyCountHandle, (int)Win32API.IACC.OBJID_CLIENT, ref Win32API.IACCUID, ref _paccCopyCount);
if (_paccCopyCount != null)
{
_paccCopyCount.set_accValue(_selfID, number.ToString());
return(true);
}
}
catch
{
}
}
return(false);
}