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You can just tack on the current date/time to the file name. Try
something along these lines before exporting your image:
// e.g. Image_2008-8-6_14-22-33.png
rightNow = new Date();
fileName = "Image_" + rightNow.getFullYear() + "-" +
(rightNow.getMonth() + 1) + "-" + rightNow.getDate() + "_" +
rightNow.getHours() + "-" + rightNow.getMinutes() +
rightNow.getSeconds() + ".png";
If you really want to get fancy, use "Buy_" or "Sell_" instead
of "Image_" :)
Alternatively, you can just use seconds since the epoch:
// e.g. Image_438057023343... some crazy long number ...
rightNow = new Date();
fileName = "Image_" + rightNow.getTime(); + ".png";
Mike
--- In amibroker@xxxxxxxxxxxxxxx, "gyowell2000" <gyowell1@xxx> wrote:
>
> Hello,
>
> I want to save an image to file after the Buy or Short for each
> trade. The export image method to do this is in Jscript, and must
> be called from outside of AB. But I have a problem since I need to
> use the BUY(or Short) from AB to trigger the image export. So what
> I have come up with is to use the Alertif function inside AB to
> trigger the external action, e.g.,
>
> AlertIf( Buy, "EXEC C:\\ExportImage.js" , "At "+Now() , 1 );
>
> Then on the root directory of the C: drive, a I have a Jscript
file,
> ExportImage.js which is:
>
> AB = new ActiveXObject("Broker.Application");
>
> Win = AB.ActiveWindow;
>
> Win.ExportImage( "test3.png", 1280, 960 );
>
> So far so good. Works like a champ EXCEPT that it keeps writing
> each new image to the same file name, test3.png.
>
> So here is the question: How do I increment the number after test
> or attach a time stamp to it sso that I get individual files for
> each image? I have tried several approaches but nothing works so
> far. Also can see from the Jscript documentation in the User's
> Guide and on the web, that it will be a chore to learn Jscript
> basics. I want to do that over time , but not right now.
>
> Can anyone help?
>
> Thanks in advance,
>
> Grover
>
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