Hello, The AFL formula itself is OK and does not create any problems. The crash you are getting is because of possible corruption of broker.newcharts file and/or layout you are using.
You may try the following: CLOSE that particular pane, then insert the very same formula into NEW chart pane. Should work fine then. Best regards, Tomasz Janeczko amibroker.com On 2010-08-23 15:19, Progster wrote: > 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 so relative paths to formulas are no longer valid.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. > > 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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