Hello Jaromir,

The information you are looking for is exactly where it is defined below (Daniel Mills which refers to an older posting of mine).

Primary and most accurate (open) source for information is the MITAB library (read the source code) unless you have access to the MapInfo Corp.'s own information.

More accessible is this document, which may not be 100% accurate: www.routeware.dk/notes.html.

Regards
Uffe

----- Original Message ----- From: "Jaromir Svasta" <[EMAIL PROTECTED]>
To: "MapInfo List (E-mail)" <[email protected]>
Sent: Thursday, May 05, 2005 8:42 AM
Subject: Re: MI-L reading the map header file



I am long trying to find a better way to get types of all objects stored in a map other than looping through all objects in a table. I know it must be somewhere, because MapInfo knows it immediately - for instance, after pressing the style override button, only those style buttons are offered that correspond to bject types found in a table (region, line, point or text). Is it in a map header? Is the map header documented somewhere?
Thanks!
(I hope my english is comprehensible...)


--
Jaromir SVASTA

On Wed, 04 May 2005 12:08:04 +0200, Mills, Daniel <[EMAIL PROTECTED]> wrote:

hi,

sometime ago i asked if it was possible to determine the number of features
within a tab file by directly reading the .data or .map file. somebody
kindly supplied the following code


Open File strMapFile for binary as #1 ByteOrder LowHigh
Get #1, 317, nPoints ' nPoints etc are integer variables
Get #1, 321, nLines ' plines + lines + arcs
Get #1, 325, nRegions   ' regions + rects + ellipses
Get #1, 329, nText


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