Hello friends,
How can I get the resolution of a JPG?
I want to remember that I read here that it can be done without opening and reading the photo.
Best regards,
Otto
FiveTech Support Forums
FiveWin / Harbour / xBase community
Board index FiveWin for Harbour/xHarbour resolution of a JPG
Maybe this post ?
http://forums.fivetechsupport.com/viewtopic.php?f=3&t=16312&hilit=jpg+resolution&sid=3c21fef10f4377eed5600cb7087a1afd
http://forums.fivetechsupport.com/viewtopic.php?f=3&t=16312&hilit=jpg+resolution&sid=3c21fef10f4377eed5600cb7087a1afd
Marc Venken
Using: FWH 23.08 with Harbour
Using: FWH 23.08 with Harbour
Hello Marc,
Thanks. With the help of your link, I remembered that I already solved the problem with modHarbour and a JS LIB.
Thanks again.
Should also work with WEBVIEW2.
Here is the link to the library:
https://github.com/exif-js/exif-js
Best regards,
Otto
PS: That's where forensics starts.
Thanks. With the help of your link, I remembered that I already solved the problem with modHarbour and a JS LIB.
Thanks again.
Should also work with WEBVIEW2.
Here is the link to the library:
https://github.com/exif-js/exif-js
Best regards,
Otto
PS: That's where forensics starts.
Hello Marc,
now I remember.
I wanted to program a working time recording.
A display shows a clock with a QR code that changes every 10 sec.
When an employee scans the QR code and follows the link, the photo is sent to the server and the metadata is read out.
If the picture is older than e.g. 10 sec. then the server reports that the capture was not correct.
This means that the employee must be on-site because he needs the current link and must send immediately.
Best regards,
Otto
now I remember.
I wanted to program a working time recording.
A display shows a clock with a QR code that changes every 10 sec.
When an employee scans the QR code and follows the link, the photo is sent to the server and the metadata is read out.
If the picture is older than e.g. 10 sec. then the server reports that the capture was not correct.
This means that the employee must be on-site because he needs the current link and must send immediately.
Best regards,
Otto
...
The program is still working:
https://winhotel.space/qrcodejs-master/index-svg.prg
Best regards,
Otto
The program is still working:
https://winhotel.space/qrcodejs-master/index-svg.prg
Best regards,
Otto
Great !
Regards
G. N. Rao.
Hyderabad, India
G. N. Rao.
Hyderabad, India
Great !
Regards
G. N. Rao.
Hyderabad, India
G. N. Rao.
Hyderabad, India
Dear Mr. Rao,
Hearing that from you means a lot to me.
Have a nice Sunday.
Best regards,
Otto
Otto wrote:Hello friends,FWH function
How can I get the resolution of a JPG?
I want to remember that I read here that it can be done without opening and reading the photo.
Best regards,
Otto
JpegDim( cFileJpg ) // --> { nWidth, nHeight }Ofc, can not provide as much information as the exif.js
Regards
G. N. Rao.
Hyderabad, India
G. N. Rao.
Hyderabad, India
hi Otto,
for Desktop App you can get Information of JPG File this Way
for Desktop App you can get Information of JPG File this Way
#include "fivewin.CH"
PROCEDURE MAIN
MsgInfo( hb_valToExp( JpgMetaData("d:\Bilder\NASA\","02-spitzer-smc.jpg") ) )
RETURN
FUNCTION JpgMetaData( cPath, cFilename )
LOCAL aRet := {}
LOCAL nItem, ii,iMax
LOCAL objShell := CreateObject( "Shell.Application" )
LOCAL objFolder
LOCAL objFolderItem
LOCAL cFileInfo
LOCAL cHeaderInfo
LOCAL aItems := {176,178,175,177}
objFolder := objShell:Namespace( cPath )
objFolderItem := objFolder:ParseName( cFilename )
iMax := LEN(aItems)
FOR ii := 1 TO iMax
nItem := aItems[ii]
cFileInfo := objFolder:GetDetailsOf( objFolderItem, nItem )
cHeaderInfo := objFolder:GetDetailsOf( objFolder:Items, nItem )
IF !EMPTY( cHeaderInfo ) .AND. !EMPTY( cFileInfo )
AADD( aRet, { STRZERO( nItem, 3 ), cHeaderInfo, STRTRAN( cFileInfo , "?", "" ) } )
ENDIF
NEXT
objFolderItem := NIL
objFolder := NIL
objShell := NIL
RETURN ACLONE( aRet )greeting,
Jimmy
Jimmy