I am trying to read values from cells of a running Excel 2007 document. I am using the WinAPI extension for Lua. I am currently running on a Windows XP computer (if that matters, but it seems the WinAPI works from XP on.
This is my Excel document:
This is my Lua code:
require 'winapi'
w = winapi.find_window_match('Book1') -- Specify the name of the window
w:show() -- Set the visability
w:set_foreground() -- Bring this window to the foreground
handle = w:get_handle() -- Get window handle
t = {} -- Create a table
w:enum_children(function(w) table.insert(t,w) end) -- Enumerate all children
for k,v in pairs(t) do -- Print out all pairs in the table
print("",k,"=",v)
end
This is my Lua code output:
Does anyone know how I recursively should enumerate in order to find each Cell? Or is there a better way to go about this? The text I want is the "1234". I have not done much Windows programming since I prefer Unix, but it seems like I am on the right track. I just don't know how to progress from here!
I doubt that Excel uses a window for each and every cell in the spreadsheet, so trying to get to the cell by navigating the window hierarchy is likely a dead end.
If possible, I'd recommend exporting the data to a common file type, like comma-separated values, and making your program parse that.
Alternatively, you can read about UI Automation, which is how things like screen readers can access the data in a Windows application's UI. I've never done that, but it looks like it might be a lot of work. Nevertheless, I believe it's the most robust, supported method for trying to get data out of a Windows application via its user interface.
Related
I'm having trouble getting started with building a Print Monitor / Print Handler for Windows using Visual Studio 2012 Ultimate with WDK 8. Basically, this is what I am trying to accomplish:
Create a print monitor (something an application can print to) that will generate a file with the content that should be printed (like the default XPS printer or a PDF printer), and then invokes the print handler
Create a print handler that will parse the generated file and do certain actions with it (check to see if certain text is present, upload the file online, etc)
I feel like the print handler part should not be too hard, but starting with the print monitor is what I'm stuck at. What would I do within VS12? I see options for "Printer Driver V4", "Printer Driver V4 Property Bag", and "Printer XPS Render Filter". Should I use one of those templates, and, if so, what would I do within them? Anything pointing me in the right direction would be appreciated!
EDIT:
Just some more clarification - I only need the text from the print output, but I've read from various sources that getting text-only output leads to no output at all from sources like Firefox, etc since they print text as glyphs.
I will be using the print handler to parse the text for keywords and then upload that information to a web server in a specific format. The print monitor just needs to capture and save the text information from whatever application is printing.
As you pointed out in your comments, some applications such as Firefox print using glyph indices instead of characters. In fact, quite a few do and it's becoming more common. What you need is a print driver. The good news is Microsoft has already written it for you and provided you with sample source code in the WDK. Start by reviewing this to understand your options. The Unidriver is perhaps a little simpler but the Postscript driver has the advantage of generating output that can readily be transformed to PDF or other formats that retain text information (as opposed to raster page images that lose all text information). As far as I'm concerned, don't even think about XPS; it's just an all around disaster.
To handle glyph indices, what you'll need to do is add code to the driver's OEMTextOut function that uses the font's cmap tables to translate glyph indices back into character codes. I'm unaware of any public domain libraries that parse font files, so you'll likely have to write your own code to do this. (Hint: If you support only OpenType/TrueType fonts, you'll cover 99% of all printing applications).
Getting the Microsoft sample code to build, install and run is mostly straightforward, but if you're new to the WDK and installing print drivers, plan on spending a week or more on just that. The glyph index translation part is far more complex and you should plan on spending a lot more time on that.
I have a program that can access a database with a whole bunch of articles.
Due to copyright, I can't access the database straight from my program, but I have a different program that can access it, and it's legitimate to copy small bits from the articles.
Because my friends and I quote a lot from these articles, I thought it would be useful if we could find an add-in for Word that will copy the requested part from an article.
Is there any add-in for Word that would let me use the program that I mentioned above so that I can access the database from within Word?
I would like to program this add-in myself, if possible.
Without further information about which operating system, and version of Word you are using, I can offer only a general outline.
1) It seems to me that you want to make a Word macro using Word Basic, or Visual Basic.
2) When you want to call your program which is external to Word, you need to use the shell command as outlined here from Microsoft's webpage.
I hope that helps you get started writing your macro!
CHEERS
Well its a wrokaround but you can use an automation tool which can run a sequence of actions on a given GUI like Winrunner or TestQuest to semulate the usage of the program, i assume these tools can get an input from a given xml or text file and log outputs in log text file.
If you have the output in a text file you will be able to parse the file using any programmign language and get the information you need and write it to eord or whatever format using OLE objects.
I want to extract text contents from GUI apps,here are 2 examples::
example 1:
Suppose I opened firefox, and input url : www.google.com
how can I extract the string "www.google.com" from firefox using my own app ?
example 2:
open calculator(using gcalctool),then input 1+1
How can I extract the string "1+1" of calculator from my own program?
in brief ,what I want is to find out whether there is a way to extract the text contents from any widget of an GUI application
Thanks
I don't think there's a generic way to do this, at least not a very elegant one.
Some inelegant ideas:
You might be able to modify the X window system or even some toolkit framework to extract what is being displayed in specific window elements as text.
You could take a screenshot and use an OCR library to convert the pixels back into text for the interesting areas.
You could recompile the apps of interest to add some kind of mechanism for asking them questions.
You could use something like xtest to inject events highlighting the region of interest and copying it to the clipboard.
I believe firefox and gcalctool are for examples only and you just want to know in general how to pass output of one application to other application.
There are many ways to do that on Linux, like:
piping
application1 | application2
btw here is the Firefox command line manual if you want to start firefox on Ubuntu with a URL. eg:
firefox "$url"
where $url is a variable whose value can be www.mozilla.org
That sounds difficult. Supposing you're running X11, you can very easily grab a window picture ( see "man xwd"); however there is no easy way to get to the text unless it's selected and therefore copied to the clipboard.
Alternatively, if you only want to capture user input, this is quite easy to do, too, by activation the X11 record extension: put this in your /etc/X11/xorg.conf:
Section "Module"
Load "record"
#Load other modules you need ...
EndSection
though it may prove difficult to use too, see example code for Xorg/X11 record extension fails
I want to write a bash script for a mac which takes a text file containing a table of numbers (can be .csv), converts the numbers to a chart, saves the chart (any file format that I can display on my web page), and exits. It must do this unattended. No user interaction.
I know bash, perl, and a little AppleScript, and I can learn VBA or whatever else. I am about to plunk down money for the new Excel 2011 for Mac. I think I want Excel rather than Numbers'09, but I am not at all sure, and I think VBA or AppleScript will allow me to automate most of the work.
Is AppleScript + Excel a good choice? If so, then I'm home free. Applescript programs can be launched from bash via osascript command.
But maybe VBA is better? But how can I launch a Excel VBA script from bash on a mac?
Summary of questions: (1) AppleScript or VBA or something else? (2) Excel or Numbers? (3) How to launch Excel VBA script from bash?
Thanks in advance,
Ken
Don't forget to try OpenOffice (and derivatives). It's been a while since I last worked with it, but they have a macro language and some VBA support (don't know how good it is now, I'm sure it's progressed) - so it could likely generate your graphs for you.
Alternatively, this sounds like something Gnuplot could very easily do. See this article where they start with the raw data in a text file, and create a PNG file for use in a web page: http://www.ibm.com/developerworks/aix/library/au-gnuplot/index.html
Just thought you should know about other options than Excel and Numbers...
You should definitively consider using gnuplot (free), which can easily create graphics and even HTML5 canvas elements from different input file formats via the command line.
iWork 09 does support Applescript. Pages is pretty good with its support. Numbers far less so. I think most expect more expansive Applescript support with the new version as Numbers only has partial support. So for what the original question asks you really need to use Excel.
If you are going to script I'd look seriously at Python or Ruby combined with Appscript rather than Applescript or VBA. Applescript is a bear of a language to write in and using one of the other languages gives you all the libraries of that language. That allows quite a bit more powerful code to be written.
If you are just writing for Office and don't need much other functionality then I'd probably stick with VBA.
You might like to take a look at Google Chart Tools.
It is exceptionally useful for including charts and graphs within web pages.
You just create a URL containing the data as a src for an image, then tada, it appears.
Have a play.
For instance, a few parameters:
chd=t:10,20,30
chco=FF0000|00FF00|0000FF
chs=320x240
cht=p3
chdl=Red|Green|Blue
Makes a URL: https://chart.googleapis.com/chart?chd=t:10,20,30&chco=FF0000|00FF00|0000FF&chs=320x240&cht=p3&chdl=Red|Green|Blue
Which forms a chart:
I would recommend using Numbers and AppleScript if you are on OS X—these are well integrated. Also, you could use Automator to make your life even simpler.
Microsoft removed VBA support from Office with v2008. iWork '08 has no Applescript support, and while I can't speak directly about v'09 given Apple's recent decline in scriptable applications I wouldn't count on it.
The sure, long-term bet here would be to use Excel with Applescript.
Here's something that's really irked me over the years. I've never used any software that, when importing data from a column-aligned text file, can figure out the column breaks in a correct manner.
Excel 2K3 and a lot of other Microsoft components that seem to share a common codebase (like the import options for SQL2K) attempt to figure out the column breaks for you. Unfortunately, they only look at the first n rows, and are often completely wrong.
OpenOffice.Org 3.1 has a import dialog almost exactly like Excel 2K3 but it doesn't even attempt to guess the column breaks for you. And the latest version of Numbers doesn't appear to handle column-aligned imports at all.
Obviously column-aligned data is undesirable for a number of reasons, but a lot of older software (particularly in-house software various companies have floating around) exports data in this format so I do need to handle it every so often. Surely, somewhere, SOME software imports it well without me coding an import utility myself or manually specifying where twelve zillion columns start and stop?
OSX, Windows, whatever. I'm open to suggestions. Ultimate goal is to get it into a SQL Server table, but simply getting it into a Excel/XML/tab-delimited/etc file in the meantime would be fine because it's easy enough to get into SQL Server from there.
I tend to normalize such data with awk -- perhaps generating a csv file -- before trying to import it into Excel.
See the awk user's manual.
I don't think there is a silver bullet for your request. I think the best you can hope for is to define your input format once and be able to reuse that format when you receive a file with the same format again.
As one poster mentioned you could use awk or, if .NET is more your thing, then you could use FileHelpers. It's an open source .NET library that does a good job reading and writing both Fixed length and delimited files. The downside is that you would be creating a .NET application to do the work (either inserting directly into a DB or perhaps creating an output file. On the plus side, once created, you could reuse the mapping classes again if you get the same file format.
Well obviously no software can be entirely correct in guessing the layout of a fixed column file, since there is no seperator (though variable width columns with higher maximum lengths will often produce enough space on the end to start guessing). For example the following could be anywhere from 1-9 columns (I have personally had to figure out some super packed fixed column layouts like this, only much longer)
135464876
647873159
345467575
If SQL Server is the ultimate destination, have you looked into the SQL Server import wizard?
Right click your database in Management Studio and select Tasks->Import Data. Proceed through and select "Flat File" as your data source. In the format dropdown change from Delimited to Fixed Width. On the left you can now use the Columns screen to draw the column seperators. There is also an advanced and preview screen.
Try out this demo (I was on development team):
Personator 4
Install, run the program, go to Tools | ASCII Conversion | Import from ASCII.
The import will be to DBF/FoxPro, but you can then export that file into one of the formats you mentioned.
The start/stop guesser uses a few statistical formulas to try to get the boundaries correct; you get to verify and/or correct with a graphical editor after analysis.
If you save your file as a text file and attempt to open
it in Microsoft Excel 2007 and select "Fixed Width",
Excel will "guess" where the breaks occur (based on
whitespace), but you can actually change where the column
field breaks will occur. The application has vertical lines that
can be moved left or right X characters. Excel
will "guess" where the breaks occur, but if it
guesses incorrectly, you can still change where the field breaks
should occur. On STEP 2 of the wizard, just move the
vertical lines to the left or right if you need
to change Excel's guesses as to where the field breaks
are. You can see which character number the field
break occurs in before importing.