User's Manual
Table Of Contents
- Legal Information
- Document Change Record
- Contents
- Before You Begin
- Chapter 1 - Introduction
- Chapter 2 - Windows Mobile 2003
- Software Builds
- Where to Find Information
- Basic Skills
- Microsoft ActiveSync
- Microsoft Pocket Outlook
- Calendar: Scheduling Appointments and Meetings
- Synchronizing Calendar
- Why Use Categories in the Calendar?
- What’s an All Day Event?
- What’s a Recurrence Pattern?
- Viewing Appointments
- Creating or Changing an Appointment
- Creating an All Day Event
- Setting a Reminder for an Appointment
- Adding a Note to an Appointment
- Making an Appointment Recurring
- Assigning an Appointment to a Category
- Sending a Meeting Request
- Finding an Appointment
- Deleting an Appointment
- Changing Calendar Options
- Contacts: Tracking Friends and Colleagues
- Tasks: Keeping a To Do List
- Notes: Capturing Thoughts and Ideas
- Inbox: Sending and Receiving E-mail Messages
- Calendar: Scheduling Appointments and Meetings
- Companion Programs
- Pocket Internet Explorer
- Getting Connected
- Chapter 3 - Installing Applications
- Chapter 4 - Network Support
- CORE
- Network Adapters
- Ethernet Communications
- 802.11b Communications
- No Networking
- Network Selection APIs
- Network Connections
- WWAN Radio Options
- Wireless Personal Area Networking
- AutoIP/DHCP
- SNMP Configuration on the 700 Series Computer
- Chapter 5 - Printer Support
- Chapter 6 - Scanner Support
Printer SupportChapter —5
184 700 Series Color Mob ile Computer User’s Manual
Opening the NPCP Driver
The application opens the NPCP driver by using the CreateFile()
function. The call can be implemented as follows. The first parameter
“LPT9:”mustreflectthedevicenameandindexusedinthe
RegisterDevice() function call and will fail for any of the following reasons:
hFile = CreateFile(_T(”LPT9:”), GENERIC_WRITE |
GENERIC_READ, 0, NULL, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL,
NULL);
S The port associated with the device during RegisterDev i ce() is in use.
S The NPCP device is already open.
S The share mode is not set to zero. The device cannot be shared.
S Access permissions are not set to GENERIC_WRITE |
GENERIC_READ. Both modes must be specified.
Closing the NPCP Driver
Using the CloseHandle() (hFile) function closes the NPCP driver. Where
hFile is the handle returned by the CreateFile() function call.
S TRUE = the device is successfully closed.
S FALSE = an attempt to close NULL HANDLE or an already closed de-
vice.
Reading from the NPCP Driver
Reading of the NPCP printers is not supported since all responses from
the printer are the result of commands sent to the printer.
DeviceIoControl() functions are provided where data is to be received
from the printer.
Writing to the NPCP Driver
All Print data can be sent to the printer using the WriteFile() function.
The print data written to the driver must contain the proper printer
commands for formatting. If the function returns FALSE, the NPCP error
may be retrieved using IOCTL_NPCP_ERROR. See the description on
the next page.