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Length of the header of a General Field
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De
03/12/2003 08:24:50
Lutz Scheffler
Lutz Scheffler Software Ingenieurbüro
Dresden, Allemagne
 
 
Information générale
Forum:
Visual FoxPro
Catégorie:
Autre
Divers
Thread ID:
00855096
Message ID:
00855381
Vues:
13
In addition to Sergeys message, it need to be said that the "Export an Embedded .bmp Image into a File" solution works for bmps added to genaral fields with paint as ole server only.
If your default ole - BMP server is a differnet programm, lets say an image viewer, the method will fail.

Agnes

>>I need to know how to find the length of the header in a general field. Lets say that I take the value of the data in the general field and place it in a string, where does the header end and the file data begin? I know for sure it isn’t a fixed length and there doesn’t appear to be any sort of delimiter at the end of the header. Any help would be appreciated, and yes I know that most people recommend against using General fields.
>
>Ted,
>
>One of the reason it's not recomended to use General fields, there's no easy way to export image back to a file. Each time of image has it's own format in general field wich also depends on the application associated with that type of image. For BMP files see HOWTO: Export an Embedded .bmp Image into a File mskb #Q161832 and http://www.utmag.com/October2002/Page31.asp.
Words are given to man to enable him to conceal his true feelings.
Charles Maurice de Talleyrand-Périgord

Weeks of programming can save you hours of planning.

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