POSTSCRIPT_PASSTHROUGH Printer Escape function

The POSTSCRIPT_PASSTHROUGH printer escape function sends data directly to a PostScript printer driver.

A PostScript driver supports this escape function when in PostScript-centric mode or in compatibility mode, but not in GDI-centric mode.

To set the PostScript driver's mode, call the POSTSCRIPT_IDENTIFY escape function.

To perform this operation, call the ExtEscape function with the following parameters.

Syntax

int ExtEscape(
  _In_  HDC    hdc,
  _In_  int    nEscape,
  _In_  int    cbInput,
  _In_  LPCSTR lpszInData,
  _In_  int    cbOutput,
  _Out_ LPSTR  lpszOutData
);

Parameters

• hdc [in]
  A handle to the printer device context.

• nEscape [in]
  The escape function to be performed.

  Value	Meaning
  POSTSCRIPT_PASSTHROUGH	Sends data directly to a PostScript printer driver. Supported in compatibility mode and PostScript-centric mode.

   

• cbInput [in]
  The number of bytes of data pointed to by the lpszInData parameter.

• lpszInData [in]
  A pointer to the input structure required for the specified escape. The first word in the buffer contains the number of bytes of input data. The remaining bytes of the buffer contain the data itself.

• cbOutput [in]
  The number of bytes of data pointed to by the lpszOutData parameter.

  For this printer escape function, the value of this parameter is 0.

• lpszOutData [out]
  A pointer to the structure that receives output from this escape.

  For this printer escape function, the value of the parameter is NULL.

Return value

The return value is greater than zero if the function is successful and less than zero if not. A return value of zero indicates that the printer does not support this escape.

Requirements

See also

Printing

GDI Printer Escape Functions

ExtEscape

PASSTHROUGH

POSTSCRIPT_DATA

POSTSCRIPT_IDENTIFY