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Board index FiveWin for Harbour/xHarbour Know if is an image file
Silvio.Falconi
Posts: 7317
Joined: Thu Oct 18, 2012 07:17 PM
Know if is an image file
Posted: Fri Jan 15, 2016 11:39 AM

you can tell if a file is an image file ?

I need it because when I drop a file the procedure must Know if the file past is a image file or not
On old procedure I made a control on type of extension for some files type 

             IF UPPER( RIGHT( cFile, 3 ) ) == "JPG" ;
         .OR. UPPER( RIGHT( cFile, 3 ) ) == "BMP" ;
         .OR. UPPER( RIGHT( cFile, 3 ) ) == "PCX" ;
         .OR. UPPER( RIGHT( cFile, 3 ) ) == "GIF" ;
         .OR. UPPER( RIGHT( cFile, 3 ) ) == "TGA" ;
         .OR. UPPER( RIGHT( cFile, 3 ) ) == "RLE" ;
         .OR. UPPER( RIGHT( cFile, 3 ) ) == "PNG" ;
         .OR. UPPER( RIGHT( cFile, 3 ) ) == "DIB"

But the type of file image are many and many other
I need all image Freeimage Know

I saw there is a function on Image class

IsImageData( cBuf )

How use it ? or is there a api function to Know it ?

Since from 1991/1992 ( fw for clipper Rel. 14.4 - Momos)

I use : FiveWin for Harbour March-April 2024 - Harbour 3.2.0dev (harbour_bcc770_32_20240309) - Bcc7.70 - xMate ver. 1.15.3 - PellesC - mail: silvio[dot]falconi[at]gmail[dot]com
ukoenig
Posts: 4043
Joined: Wed Dec 19, 2007 06:40 PM
Re: Know if is an image file
Posted: Fri Jan 15, 2016 01:12 PM
Silvio,

You can get the file-extensions using :

cFileExt()
Retrieves the extension from a filename
Syntax:
cFileExt( <cFileName> ) --> cExtName
Parameters:
<cFileName> The filename whose extension to retrieve,
if the extension has been specified inside its filename.
Returns:
<cExtName> A three characters string with the extension name.
Source Code:
SOURCE\FUNCTION\FileName.prg

FREEIMAGE supports the following formats :

BMP, ICO, JPEG, JNG, KOALA, LBM, IFF = FIF_LBM
MNG, PBM, PBMRAW, PCD, PCX, PGM, PGMRAW
PNG, PPM, PPMRAW, RAS, TARGA,TIFF, WBMP
PSD, CUT, XBM, XPM, DDS, GIF, HDR, FAXG3
SGI, EXR, JP2

best regards
Uwe :-)
Since 1995 ( the first release of FW 1.9 )

i work with FW.

If you have any questions about special functions, maybe i can help.
Silvio.Falconi
Posts: 7317
Joined: Thu Oct 18, 2012 07:17 PM
Re: Know if is an image file
Posted: Fri Jan 15, 2016 09:11 PM

thanks Uwe,
I need this for the application I am creating software for electronic archiving and electronic storage of documents
Through management of colored binders for topics you can keep under control all office document or the household bills, receipts, contracts, etc. by storing them in files that can be viewed or printed
Ithnked to save image files, office and OpenOffice , Adobe Pdf documents

Since from 1991/1992 ( fw for clipper Rel. 14.4 - Momos)

I use : FiveWin for Harbour March-April 2024 - Harbour 3.2.0dev (harbour_bcc770_32_20240309) - Bcc7.70 - xMate ver. 1.15.3 - PellesC - mail: silvio[dot]falconi[at]gmail[dot]com

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