If I'm not mistaken, which I could be, the printer driver is responsible
for up or downmixing objects to fit the requested resolution. Probably
by using vectors instead of straight rasterizing.
tbuchler wrote:
> By default, OpenPrinterDialog is returning a graphics object with a
> resolution of 72dpi, so an average U.S. letter is 612 pixels wide. My
> printer's native resolution is 600 dpi, and the Printer dialog settings
> is showing the printer is currently set to 600 dpi.
>
> When I draw on the page at 72dpi, specifying graphic objects' locations
> based on 72dpi, the objects are being printed where I expect them to be.
> Fonts and lines are being drawn without jaggies, as though they were
> being drawn at 600 dpi.
>
> How is RB achieving this apparent miracle? Certainly not actually
> drawing on a 72dpi graphics object and expanding it to the printer's
> native rez, which would cause jaggies.
>
> -Tom
>
> _______________________________________________
>
>
>
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Howdy--
I swear I'm the only person who posts about this stuff, because searches reveal
squat. Anyway...
I'm having a massive problem catching errors while getting font information
from Excel. The following parses text in an Excel cell to get various styling
information for later use. The occasional problem comes the moment I try to get
the name of the font used for a particular character. Sometimes there's an
error, but none of the error catching methods seem to work.
I think part of the problem might be that I get two different errors,
NilObjectException or OLEException, when I'm in Debug mode and in a compiled
app, respectively. However, neither the Try nor the Exception block can catchi
either of these errors. The thing that really has my head scratching is that
when I look at the value for the font name variable I've set, it has the
correct value but still returns the error.
In the end, I don't mind the errors because the process allows for errors to
get fixed later. I just need to be able to allow the app to continue all of
it's work to catch 80% or so of the formatting information, and would prefer to
record somewhere the remaining the app couldn't catch. Very similar code in a
Macro works fine, but I really can't do that due to various restrictions in the
overall production process.
Any ideas? Here's the code...
Sub Parse()
//This code sits in a thread, called by "Run".
dim ExcelApp as ExcelApplication
dim wb as ExcelWorkbook
dim ws as ExcelWorksheet
dim wc as ExcelRange
dim theChr as ExcelCharacters
dim theFont as ExcelFont
dim x as integer
dim theFontName as string
dim theFontNameStyle as string
ExcelApp = new ExcelApplication
wb = ExcelApp.ActiveWorkbook
ws = wb.ActiveSheet
wc = ws.Range(TheRange) //string property of the thread
ChrCount = Len(wc.Value)
for x = 1 to ChrCount
theChr = wc.Characters(x, 1)
//get the font name
try
theFont = theChr.Font
theFontName = theFont.Name //NilObjectException here but the debugger
shows the correct value.
Catch err 'as NilObjectException //doesn't catch anything.
If err IsA NilObjectException then //returned error in Debug mode
LogModule.WriteLog("ParseErrorLog", TheRange + ":" + str(x) + " =
theFontName = Left(theChr.Font.Name, 3)")
elseif err IsA OLEException then //returned error when compiled
LogModule.WriteLog("ParseErrorLog", TheRange + ":" + str(x) + " =
theFontName = Left(theChr.Font.Name, 3)")
End If
end try
Next
//I'm done, so let my parent know and stop
me.ParentCaptionObj.ParsingComplete = true
me.Kill
Exception err 'as NilObjectException //doesn't catch anything.
If err IsA NilObjectException then
LogModule.WriteLog("ParseErrorLog", TheRange + ":" + str(x) + " = " +
theChr.Value + ": " + ws.Range(TheRange).Text)
elseif err IsA OLEException then
LogModule.WriteLog("ParseErrorLog", TheRange + ":" + str(x) + " = " +
theChr.Value + ": " + ws.Range(TheRange).Text)
End If
End Sub
TIA!
--
Philip Regan
http://www.oatmealandcoffee.com
RB2k7r2, Office 2k4, MAc OS 10.4.9
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