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DEVMODE

Windows Mobile 6.5
A version of this page is also available for
4/8/2010

This structure contains information about a printer environment and device initialization.


typedef struct_devicemode { 
  WCHAR dmDeviceName[CCHDEVICENAME]; 
  WORD dmSpecVersion; 
  WORD dmDriverVersion; 
  WORD dmSize; 
  WORD dmDriverExtra; 
  DWORD dmFields; 
  short dmOrientation; 
  short dmPaperSize; 
  short dmPaperLength; 
  short dmPaperWidth; 
  short dmScale; 
  short dmCopies; 
  short dmDefaultSource; 
  short dmPrintQuality; 
  short dmColor; 
  short dmDuplex; 
  short dmYResolution; 
  short dmTTOption; 
  short dmCollate; 
  BCHAR dmFormName[CCHFORMNAME]; 
  WORD dmLogPixels; 
  DWORD dmBitsPerPel; 
  DWORD dmPelsWidth; 
  DWORD dmPelsHeight; 
  DWORD dmDisplayFlags; 
  DWORD dmDisplayFrequency; 
  DWORD dmDisplayOrientation;
} DEVMODE; 

dmDeviceName

String that specifies the friendly name of the printer.

This string is unique among device drivers.

This name can be truncated to fit in the dmDeviceName array.

dmSpecVersion

Unsupported; set to zero.

dmDriverVersion

Unsupported; set to zero.

dmSize

WORD that specifies the size, in bytes, of the DEVMODE structure, not including any private driver-specific data that can follow the public members of the structure.

Set this member to sizeof(DEVMODE) to indicate the version of the DEVMODE structure being used.

dmDriverExtra

Contains the number of bytes of private driver-data that follow this structure.

If a device driver does not use device-specific information, set this member to zero.

dmFields

DWORD that specifies whether certain members of the DEVMODE structure have been initialized.

If a member is initialized, its corresponding bit is set, otherwise the bit is clear.

A printer driver supports only those member of the DEVMODE structure that are appropriate for the printer technology.

The following table shows the possible values.

Value Description

DM_ORIENTATION

The dmOrientation member is initialized.

DM_PAPERSIZE

The dmPaperSize member is initialized.

DM_COPIES

The dmCopies member is initialized.

DM_PRINTQUALITY

The dmPrintQuality member is initialized.

DM_COLOR

The dmColor member is initialized.

DM_BITSPERPEL

The dmBitsPerPel member is initialized.

DM_PELSWIDTH

The dmPelsWidth member is initialized.

DM_PELSHEIGHT

The dmPelsHeight member is initialized.

DM_DISPLAYORIENTATION

The ChangeDisplaySetttingsEx function should set or obtain the current screen orientation in the dmDisplayOrientation member.

DM_DISPLAYQUERYORIENTATION

The ChangeDisplaySetttingsEx function should query the display driver to determine whether it supports screen rotation.

dmOrientation

Short integer that specifies the orientation of the paper for printer devices.

The following table shows the possible values.

Value Description

DMORIENT_LANDSCAPE

Prints in landscape orientation.

DMORIENT_PORTRAIT

Prints in portrait orientation.

dmPaperSize

Short integer that specifies the size of the paper for printer devices.

This following table shows the possible predefined values.

Value Description

DMPAPER_A4

A4 sheet, 210 millimeters by 297 millimeters

DMPAPER_B4

B4 sheet, 250 millimeters by 354 millimeters

DMPAPER_B5

B5 sheet, 182 millimeters by 257 millimeters

DMPAPER_LEGAL

Legal, 8 1/2 inches by 14 inches

DMPAPER_LETTER

Letter, 8 1/2 inches by 11 inches

dmPaperLength

Unsupported; set to zero.

dmPaperWidth

Unsupported; set to zero.

dmScale

Unsupported; set to zero.

dmCopies

Short integer that specifies the number of copies that you want to print, if the device supports printing multiple copies.

dmDefaultSource

Unsupported; set to zero.

dmPrintQuality

Short integer that specifies the printer resolution.

The following table shows the possible predefined device-independent values.

Value Description

DMRES_DRAFT

Draft quality

DMRES_HIGH

High quality

dmColor

Short integer that specifies color or monochrome printing on color printers.

The following table shows the possible values.

Value Description

DMCOLOR_COLOR

Color printing

DMCOLOR_MONOCHROME

Monochrome printing

dmDuplex

Unsupported; set to zero.

dmYResolution

Unsupported; set to zero.

dmTTOption

Unsupported; set to zero.

dmCollate

Unsupported; set to zero.

dmFormName

Unsupported; set to zero.

dmLogPixels

Unsupported; set to zero.

dmBitsPerPel

DWORD that specifies the color resolution, in bits per pixel, of the display device; for example, 4 bits for 16 colors, 8 bits for 256 colors, or 16 bits for 65,536 colors.

Display drivers use this member, but printer drivers do not.

dmPelsWidth

DWORD that specifies the width, in pixels, of the visible device surface.

Display drivers use this member, but printer drivers do not.

dmPelsHeight

DWORD that specifies the height, in pixels, of the visible device surface.

Display drivers use this member, but printer drivers do not.

dmDisplayFlags

Unsupported; set to zero.

dmDisplayFrequency

Unsupported; set to zero.

dmDisplayOrientation

DWORD that specifies the orientation of the screen.

The following table shows the possible values.

Value Description

DMDO_0

The screen is rotated by 0 degrees.

DMDO_90

The screen is rotated by 90 degrees counterclockwise.

DMDO_180

The screen is rotated by 180 degrees.

DMDO_270

The screen is rotated by 270 degrees counterclockwise.

The private data for a device driver follows the public portion of the DEVMODE structure.

The size of the public data can vary for different versions of the structure.

The dmSize member specifies the number of bytes of public data.

You should initialize all unsupported members with a value of zero.

Headerwindows.h
Windows Embedded CEWindows CE 2.0 and later
Windows MobileWindows Mobile Version 5.0 and later

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