WR OPEN DOCUMENT

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4D Write v16

WR OPEN DOCUMENT


WR OPEN DOCUMENT ( area ; document ; type )

Parameter	Type	Description
area	Longint	4D Write area
document	String	Path of document to open
		Path of the open document
type	String	Type of the document to open (4 characters)
		Type of the open document (4 characters)

Description

The WR OPEN DOCUMENT command opens the document specified by document and places it in the 4D Write area referenced by area.

document is the name or the complete access path of the document file.
Examples:

On Windows, you must include the “\” character between directories:
“D:\directory1\directory2\file.4W7”.
On Mac OS, you must include the “:” character between folders:
“MacintoshHD:Folder:Document”.
If the document does not have an extension (Macintosh document), 4D Write will try whatever is best to open it.

If document contains only the name of the file, WR OPEN DOCUMENT will look for the document in the folder of the database's structure file.

If document is an empty string, WR OPEN DOCUMENT displays the standard Open file dialog box.
When the Open button of the Open file dialog box is clicked, the OK system variable is set to 1, and the document variable will be assigned the complete access path of the file the user selects.
If the user clicks the Cancel button, document returns an empty string and the OK system variable is set to 0.
The optional type parameter allows you to filter the document types displayed by default in the standard Open file dialog box— except for HTML documents. For HTML documents, the type parameter is used for displaying either the HTML source code (if type "TEXT" is passed) or the HTML page (if type contains "HTM3", "HTML" or is omitted). (Note that only the HTML 3 format is supported by 4D Write).

You can set the type using one of the following constants, found in the "WR Document types" theme:

Constant	Type	Value	Comment
wr 4D Write document	String	4WR7	4D Write current version format document
wr 4D Write template	String	4WT7	4D Write template format document
wr HTML 3 document	String	HTM3	HTML 3.2 format text
wr Macintosh text document	String	ASCM	Mac OS format text
wr RTF document	String	RTF	RTF format document
wr unicode document UTF16	String	ASCU	Unicode 16-byte format text
wr unicode document UTF8	String	ASC8	Unicode 8-byte format text
wr Windows text document	String	ASCW	Windows format text

Compatibility note: To retain compatibility with previous versions, the 4WR6 (4D Write 6.0 Document) and DOC6 (Word 6 Document) types are also supported.

In all cases, after the command is executed, the type variable returns the type of the actual open document.

Example

The following example opens a file located in the database's directory.

 WR OPEN DOCUMENT(area;"HD:Folder:database folder:File")'On Mac OS

 WR OPEN DOCUMENT(area;"D:\\directory\\Basedirectory\\file.4W7")'On Windows