Special File Handling

Special File Handling

Overview

	PxPlus supports the use of a set of device files that are designed for special file handling. When these files are used in an OPEN directive, the system recognizes and processes them internally in the language at run time. This chapter covers the following special device files:
	*BITMAP*	Special file for generating a 24-bit colour bitmap image in memory. See BITMAP Virtual Bitmap.

	*HTML*	Special device file used to generate HTML formatted output. See HTML Print to HTML.

	*MEMORY*	Memory-resident logical file. For instructions on handling this specialty file, see MEMORY Create & Use Memory File.

	*PDF*	Output interface for generating PDF-compatible files, see PDF PDF Print Interface.

	*QUERY*	Access the contents of a Query like a standard read-only file. See QUERY Query based file. This was added to PxPlus in version 9.00

	*VIEW*	Access the contents of a View like a standard read-only file. See VIEW View based file. This was added to PxPlus in version 10.00

	*VIEWER*	Special device file that allows you to preview print jobs. This is for use in WindX or Windows only. For more information on the features of this device file, see VIEWER Print Preview.

	*WINDEV*	Special device file that provides access in raw or pass through mode to the Windows print subsystem. This is for use in WindX or Windows only. See WINDEV Raw Print Mode

	*WINPRT*	Special device file that provides standard API access to the Windows print subsystem. This is for use in WindX or Windows only. See WINPRT Windows Printing.

	*STDIO*	Special logical device the allows Windows applications to access the logical files 'stdin' and 'stdout' which are generally only available when run from windows command mode,. See STDIO Windows Standard IO access. This was added to PxPlus in version 7.00

	*TBRED*	Special device file that provides remote access to Thoroughbred data files. Remote files must be on Unix/Linux server running the PLUSTIO access background process. See TBRED Thoroughbred file access. This was added to PxPlus in version 6.30

	*PLUSFAX*	Special device file that provides fax output using email and internet access See PLUSFAX Send to Fax via Email This was added to PxPlus in version 7.00 build 9162

*Note*	These filenames are not case-sensitive, but the asterisks are required; e.g., OPEN (14)"Memory".

	PxPlus supports the use of a set of device files that are designed for special file handling. When these files are used in an OPEN directive, the system recognizes and processes them internally in the language at run time. This chapter covers the following special device files:
	*BITMAP*	Special file for generating a 24-bit colour bitmap image in memory. See BITMAP Virtual Bitmap.

	*HTML*	Special device file used to generate HTML formatted output. See HTML Print to HTML.

	*MEMORY*	Memory-resident logical file. For instructions on handling this specialty file, see MEMORY Create & Use Memory File.

	*PDF*	Output interface for generating PDF-compatible files, see PDF PDF Print Interface.

	*QUERY*	Access the contents of a Query like a standard read-only file. See QUERY Query based file. This was added to PxPlus in version 9.00

	*VIEW*	Access the contents of a View like a standard read-only file. See VIEW View based file. This was added to PxPlus in version 10.00

	*VIEWER*	Special device file that allows you to preview print jobs. This is for use in WindX or Windows only. For more information on the features of this device file, see VIEWER Print Preview.

	*WINDEV*	Special device file that provides access in raw or pass through mode to the Windows print subsystem. This is for use in WindX or Windows only. See WINDEV Raw Print Mode

	*WINPRT*	Special device file that provides standard API access to the Windows print subsystem. This is for use in WindX or Windows only. See WINPRT Windows Printing.

	*STDIO*	Special logical device the allows Windows applications to access the logical files 'stdin' and 'stdout' which are generally only available when run from windows command mode,. See STDIO Windows Standard IO access. This was added to PxPlus in version 7.00

	*TBRED*	Special device file that provides remote access to Thoroughbred data files. Remote files must be on Unix/Linux server running the PLUSTIO access background process. See TBRED Thoroughbred file access. This was added to PxPlus in version 6.30

	*PLUSFAX*	Special device file that provides fax output using email and internet access See PLUSFAX Send to Fax via Email This was added to PxPlus in version 7.00 build 9162

*Note*	These filenames are not case-sensitive, but the asterisks are required; e.g., OPEN (14)"Memory".