Save excel chart as image (activeX)

Hi community,
I have to generate couple thousands xls files which have some data and a chart on the first sheet. Once the files are generated I'd like to sweep thru all of them and save the chart as an image (BMP, GIF, PNG, doesnt matter).
I have no success though. I assume I am quite close, by using the Chart.export method, but actually nothing happens, the file is not created. (worksheet selection is good, and chart index must be one, as 0 or 2 gives me an error message while one is OK.
Any ideas?
thx.
ps: i know how to export an image of a labview-chart, but I want the export to happen from excel..
Solved!
Go to Solution.

Instead of getting a reference to the workbook worsheets collection you need to get a reference to the workbook charts collection (which is the collection of all the workbook chartsheets) . You select the chart sheet using its index and convert the resulting item to an Excel._Chart object (this is where you use this object). You can then export it.
Ben64

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Here is a script dedicated to Numbers.
You will find explanations in French and English at the beginning.
CAUTION :
it requires the installation of a Unix command file which gives us the ability to check if a modifier key is depressed.
During my tests, only shift or fn keys were correctly detected.
Maybe it was because I did my tests in the AppleScript Editor.
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--{code}
--[SCRIPT subset_of_numbers_doc_to_jpeg]
Télécharger getModKey.zip depuis
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--=====
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--=====
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--=====
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--=====
Yvan KOENIG (VALLAURIS, France)
2011/11/15
--=====
on run
          local nomFenetre, nbw
Check that the Unix command file getModKey is available in the folder <startupVolume>:Users:<yourAccount>:UnixBins: *)
          set flPth to ("" & (path to home folder) & "UnixBins:")
          tell application "System Events" to set maybe to exists disk item (flPth & "getModKey")
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                    if not my parleAnglais() then
                              error "Please, install “getModKey” in the folder" & return & "“" & flPth & "” !"
                    else
                              error "Veuillez installer « getModKey » dans le dossier « " & flPth & " » !"
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          set flPth to quoted form of POSIX path of (flPth & "getModKey")
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          tell application "System Events" to tell application process "Numbers"
Get the name of the frontmost standard window
so that we will not 'speak' to an inspector or to the Find dialog *)
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keystroke "p" using {command down}
Wait the availability of the Print sheet *)
                    tell window nomFenetre
                              repeat until exists sheet 1
                                        delay 0.2
                              end repeat
                              tell sheet 1
click first menu button
click first menu item of menu 1 of first menu button
                              end tell -- sheet
                    end tell -- window
          end tell -- System Events
          tell application "Preview" to activate
          tell application "System Events" to tell application process "Preview"
                    set nbw to count of every window
                    repeat while nbw = (count windows)
                              delay 0.2
                    end repeat
Trigger the menu item Tools > Selection Tool *)
keystroke "3" using {command down}
          end tell -- System Events
Now, select the area which must be saved in a jpeg file *)
Thanks to the command getModKey, loop until the fn key is depressed *)
          repeat
                    delay 0.2
                    if (do shell script flPth) = "131072" then exit repeat
          end repeat
The fn key was depressed so we may copy the defined area to the clipboard *)
          tell application "Preview" to activate
          tell application "System Events" to tell application process "Preview"
Empty the clipboard. So we will be able to check that the copy task is achieved *)
set the clipboard to ""
Copy to clipboard *)
keystroke "c" using {command down}
Loop waiting for the achievement of the Copy task *)
                    repeat
                              delay 0.2
                              try
the clipboard as «class PDF »
                                        exit repeat (* Exit when the task is achieved *)
                              end try
                    end repeat
                    set nbw to count windows
Close the PDF window *)
keystroke "w" using {command down}
Wait the achievement of the Close task *)
                    repeat while nbw = (count windows)
                              delay 0.2
                    end repeat
                    set nbw to count windows
Create New PDF from the clipboard *)
keystroke "n" using {command down}
Wait the availability of the new PDF window *)
                    repeat while nbw = (count windows)
                              delay 0.2
                    end repeat
Get the name of the new window *)
                    set nomFenetre to name of window 1 --(first window whose subrole is "AXStandardWindow")
keystroke "s" using {command down}
Wait the availability of the Save sheet *)
                    repeat until exists sheet 1 of window nomFenetre
                              delay 0.2
                    end repeat
                    tell sheet 1 of window nomFenetre
-- properties of every UI elements
                              tell group 1
click first pop up button
                                        delay 0.2
-- properties of every menu item of menu 1 of first pop up button
click menu item "JPEG" of menu 1 of first pop up button
                                        delay 0.2
                              end tell -- group
-- click button 1 (* Click in the Save button *)
                    end tell -- sheet
          end tell -- System Events
end run
--=====
on parleAnglais()
          local z
          try
                    tell application "Numbers" to set z to localized string "Cancel"
          on error
                    set z to "Cancel"
          end try
          return (z is not "Annuler")
end parleAnglais
--=====
--[/SCRIPT]
--{code}
Of course, thanks to FastScripts, we may link a shortcut to the script.
Yvan KOENIG (VALLAURIS, France) mardi 15 janvier 2011 19:04:38
iMac 21”5, i7, 2.8 GHz, 4 Gbytes, 1 Tbytes, mac OS X 10.6.8 and 10.7.2
My iDisk is : <http://public.me.com/koenigyvan>
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