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
Minimum supported client |
Windows 2000 Professional [desktop apps only] |
Minimum supported server |
Windows 2000 Server [desktop apps only] |
Header |
Wingdi.h (include Windows.h) |