[magick-users] perlmagic -- problem with write being buffered?

[Robert W Weaver]

greetings, ImageMagicians,

I've got a problem that appears to be a buffer flushing issue.

My goal is to pull a blob out of a database, scribble on it, write it to
a temporary file, and then embed that temporary file in an excel page
(via OLE).

I have a routine &buildGraphic that returns a temporary file name.  If I
arrange for the file not to be deleted and look at it after a run, it
looks fine.

After calling &buildGraphic, I've a routine &loadGraphicIntoSheet that
is passed that temporary file name.  Inside that, I do some OLE magic,
and have a line

$worksheet->Shapes->AddPicture($tempGraphic, 1, 1, 0, 0, int($width *
3/4 + 0.5), int($height * 3/4 + 0.5));

This fails with a "The specified file wasn't found" error.

If instead of soft-coding, I hard code the output from the previous run,
all is well; that is, if I hard code
$tempGraphic = 'C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\eVRiTDAfB7.png';
before the line to execute, it works fine.

Curiously, executing in buildGraphic
$rv = $image->Write($filename);  # write out temp file
print `ls -l $filename`;         # debugging

yields something nominal:
-rwxrwxrwx 1 rwweaver None 82674 Nov 21 16:53
C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\eVRiTDAfB7.png

Is there a way to force imagemagick to flush output and release the file
handle?

--woody

--
woody weaver            7301 hilltop ct
301 524 8128            frederick, MD