TJ, Thanks for your further comments. It all seems very logical (except for the part about what I'm observing here!).
FWIW, here is a link to a short video showing the Edit->Image->Export producing the "black-screen" for a rather simple AFL: http://www.screencast.com/t/YzY0MmNiMjQt I can also note that if I don't comment out the line: SetChartBkColor( Chart_BG ) ; then the program will crash. I sent in that crash report a few minutes ago. At this point, it seems more like a support issue, so I'll send any more tweaky details to support. However, if some program that I have installed, or some MS update, or something else that would apply to others than myself is implicated, then that would be relevant to readers who might be in the same situation. In that case I'll follow up here. - Progster On 8/23/2010 7:56 AM, Tomasz Janeczko wrote: > > Hello, > > What the Edit->Image->Export code does is to: > a) create screen-compatible in-memory bitmap > b) "paint" the window into the bitmap (the difference being that > "destination" is not screen but in-RAM bitmap created in a) > c) store to a file > > So essentially you should get WYSIWYG behavior. The picture you are > getting should be the same as you see on screen. > "This is a blank chart" is only shown when there is no chart formula > attached to given window. But in that case you would > see the same on-screen. > The only thing that can theoretically affect normal operation is > changing current working directory within some formula(s), > so relative paths to formulas are no longer valid. > > Best regards, > Tomasz Janeczko > amibroker.com > > On 2010-08-23 13:26, progster01 wrote: > > Tomasz, > > > > Thank you for your further comments. I had not been using > Edit->Image->Export in my tests, and that is indeed a helpful pathway. > > > > I have been using the ExportImage OLE call from outside of AmiBroker > (external .js file) as you describe. That also is surely a good reminder! > > > > I do now have some new information (directly from using > Edit->Image->Export ) - > > > > The issue is layout-dependent (or pane- or AFL- dependent). > > > > Trying Edit->Image->Export on different layouts, some of them export > a picture fine, and some of them export the black 'This is a blank > chart' display. > > > > Can you think of anything about a layout, pane, or AFL which might > cause this? > > > > - Progster > > > > > > --- In [email protected] > <mailto:amibroker%40yahoogroups.com>, Tomasz Janeczko<gro...@...> wrote: > >> Hello, > >> > >> You should try Edit->Image->Export to image, > >> if that works, OLE should work as well as both share the same code. > >> > >> Make sure also to use ExportImage OLE call from OUTSIDE of > AmiBroker (external .js file). > >> > >> If you attempt to do ExportImage from within indicator code > >> that is currently running, it would create implict loop > >> (export image->refresh->afl execution->export image->refresh->afl > execution) > >> and AmiBroker is protected against such deadlock/infinite loop > situation. > >> > >> Best regards, > >> Tomasz Janeczko > >> amibroker.com > >> > >> On 2010-08-23 00:23, Progster wrote: > >>> I wonder if there is any chance that the presence of SnagIt could be > >>> interfering with ExportImage? > >>> > >>> (I have SnagIt on all the machines ...) > >>> > >>> On 8/22/2010 4:51 PM, Progster wrote: > >>>> OK, thanks for that. I must have some sort of local configuration > >>>> incompatibility ... > >>>> > >>>> If anyone else should see the same problems as I've seen, please > drop a > >>>> note, and if I solve it, I'll report back. > >>>> > >>>> > >>>> On 8/21/2010 3:51 PM, amibroker wrote: > >>>>> Hello, > >>>>> > >>>>> Yes, the script works perfectly fine on my end and produces > correct image. > >>>>> > >>>>> Best regards, > >>>>> Tomasz Janeczko > >>>>> amibroker.com > >>>>> > >>>>> --- In [email protected] > <mailto:amibroker%40yahoogroups.com><mailto:amibroker%40yahoogroups.com>, > >>>>> "progster01"<progster@> wrote: > >>>>>> Thanks for the suggestion, but the DISPLAY (Windows Control Panel) > >>>>> was already set to 32-bits. > >>>>>> Does either of the provided scripts work for you and produce a > >>>>> picture other than the blank-screen message? > >>>>>> --- In [email protected] > <mailto:amibroker%40yahoogroups.com> > >>>>> <mailto:amibroker%40yahoogroups.com>, "amibroker"<groups@> wrote: > >>>>>>> Hello, > >>>>>>> > >>>>>>> ExportImage works perfectly fine. The only thing you should do > is to > >>>>>>> set your DISPLAY (Windows Control Panel) TO 24-bits or 32-bits > >>>>> (TRUE COLOR). You need true color display to be able to export > 24-bit > >>>>> PNGs. > >>>>>>> True color display is default for all new installation of Windows > >>>>> Vista and 7 because it is required for some visual effects new > Windows > >>>>> use. > >>>>>>> Best regards, > >>>>>>> Tomasz Janeczko > >>>>>>> amibroker.com > >>>>>>> > >>>>>>> > >>>>>>> > >>>>>>> --- In [email protected] > <mailto:amibroker%40yahoogroups.com> > >>>>> <mailto:amibroker%40yahoogroups.com>, Progster<progster@> wrote: > >>>>>>>> Hi, > >>>>>>>> > >>>>>>>> Is is possible that the AB OLE Automation Object Model call > >>>>>>>> ExportImage() is broken in AB 5.30.4? > >>>>>>>> > >>>>>>>> Despite everything I could think of to try, the images always > >>>>> come out > >>>>>>>> blank, like those attached. > >>>>>>>> > >>>>>>>> Neither of the codes below work, and yet each was said to work > >>>>> on the > >>>>>>>> list in the past. > >>>>>>>> > >>>>>>>> Operational attempts have included: > >>>>>>>> > >>>>>>>> AB Open Dbl-Click on script > >>>>>>>> AB Open Run script from command window > >>>>>>>> > >>>>>>>> AB Closed Dbl-Click on script > >>>>>>>> AB Closed Run script from command window > >>>>>>>> > >>>>>>>> Results are always either: server error, AB crash, or it runs and > >>>>>>>> produces the blank chart. > >>>>>>>> > >>>>>>>> When AB is open, it doesn't matter what layout/chart is up. > >>>>> Still no joy. > >>>>>>>> What could be (not) happening here??? > >>>>>>>> > >>>>>>>> - Progster > >>>>>>>> > >>>>>>>> > >>>>>>>> ----------- > >>>>>>>> > >>>>>>>> // ImageTest_01.js > >>>>>>>> AB = new ActiveXObject("Broker.Application"); > >>>>>>>> AB.ActiveWindow.ExportImage( "test.gif", 640, 480 ); > >>>>>>>> > >>>>>>>> > >>>>>>>> // ImageTest_02.js > >>>>>>>> > >>>>>>>> iWatchList = 8; /// you can define watch list number here > >>>>>>>> > >>>>>>>> AB = new ActiveXObject("Broker.Application"); > >>>>>>>> Qty = AB.Stocks.Count; for( i = 0; i< Qty; i++ ) > >>>>>>>> { > >>>>>>>> Stk = AB.Stocks( i ); > >>>>>>>> if( iWatchList< 32 ) > >>>>>>>> { > >>>>>>>> if( Stk.WatchListBits& ( 1<< iWatchList ) ) > >>>>>>>> { > >>>>>>>> Doc = AB.Documents.Open( Stk.Ticker ); > >>>>>>>> WScript.Sleep( 4000 ); // 4 seconds delay > >>>>>>>> AB.ActiveWindow.ExportImage(Stk.Ticker + ".png") > >>>>>>>> Doc.Close(); > >>>>>>>> } > >>>>>>>> } > >>>>>>>> else > >>>>>>>> { > >>>>>>>> if( Stk.WatchListBits2& ( 1<< ( iWatchList - 32 )) ) > >>>>>>>> { > >>>>>>>> Doc = AB.Documents.Open( Stk.Ticker ); > >>>>>>>> AB.ActiveWindow.ExportImage(Stk.Ticker + ".png") > >>>>>>>> WScript.Sleep( 4000 ); // 4 seconds delay > >>>>>>>> Doc.Close(); > >>>>>>>> } > >>>>>>>> } > >>>>>>>> } > >>>>>>>> > >>>> ------------------------------------ > >>>> > >>>> **** IMPORTANT PLEASE READ **** > >>>> This group is for the discussion between users only. > >>>> This is *NOT* technical support channel. > >>>> > >>>> TO GET TECHNICAL SUPPORT send an e-mail directly to > >>>> SUPPORT {at} amibroker.com > >>>> > >>>> TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at > >>>> http://www.amibroker.com/feedback/ > >>>> (submissions sent via other channels won't be considered) > >>>> > >>>> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG: > >>>> http://www.amibroker.com/devlog/ > >>>> > >>>> Yahoo! Groups Links > >>>> > >>>> > >>>> > >>>> > >>> ------------------------------------ > >>> > >>> **** IMPORTANT PLEASE READ **** > >>> This group is for the discussion between users only. > >>> This is *NOT* technical support channel. > >>> > >>> TO GET TECHNICAL SUPPORT send an e-mail directly to > >>> SUPPORT {at} amibroker.com > >>> > >>> TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at > >>> http://www.amibroker.com/feedback/ > >>> (submissions sent via other channels won't be considered) > >>> > >>> For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG: > >>> http://www.amibroker.com/devlog/ > >>> > >>> Yahoo! Groups Links > >>> > >>> > >>> > >>> > > > > > > > > ------------------------------------ > > > > **** IMPORTANT PLEASE READ **** > > This group is for the discussion between users only. > > This is *NOT* technical support channel. > > > > TO GET TECHNICAL SUPPORT send an e-mail directly to > > SUPPORT {at} amibroker.com > > > > TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at > > http://www.amibroker.com/feedback/ > > (submissions sent via other channels won't be considered) > > > > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG: > > http://www.amibroker.com/devlog/ > > > > Yahoo! Groups Links > > > > > > > > > > ------------------------------------ **** IMPORTANT PLEASE READ **** This group is for the discussion between users only. This is *NOT* technical support channel. 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