picture size

[Robert Brenstein]

>Hi Robert,
>
>>Robert Brenstein wrote:
>>
>>>Is there a simple way to get the pixel sizes of images (jpeg and gif)
>>>in Metacard? In HyperCard, I use the picture command to open them
>>>invisibly (this is important), then fetch the size. The picture
>>>command does not seem to be part of MetaCard.
>>>
>>>picture (fPath & fName),,,false
>>>get pictureheight of window fName
>>>get picturewidth of window fName
>>>close window fName
>>
>>MetaCard's syntax is arguably more self-consistent with the priciples of
>>HyperTalk on this one.  Rather than relying on an external MC has native
>>image objects, with properties that can be querried and set like buttons and
>>fields.
>>
>>In this case, the property you're looking for is the fileName of the image
>>object:
>>
>>   set the filename of image 1 to tMyPath
>>   get the rect of image 1
>>
>>If you don't already have an image object on the card, you can also import
>>image files into a new image object using the import command.
>>
>>--
>>  Richard Gaskin
>
>Richard is right, as always ;-)
>
>But maybe these props could be of any more help to you.
>
>the formattedheight of image "xxx"
>the formattedwidth of image "xxx"
>
>This will return the original height and width of an image.
>
>
>Regards
>
>Klaus Major
>k_major at osnabrueck.netsurf.de
>

Thanks guys. This is exactly what I need. I did not catch that the 
filename property is actually a filepath that allows me to swap the 
image content dynamically (and the image object resizes accordingly).

I do not want to import these images. These are external files and I 
just need to acquire their sizes dynamically. The MC version of my HC 
script is thus (having already created an invisible image object):

set the filename of image "tmp" to fpath
get the formattedheight of image "tmp"
get the formattedwidth of image "tmp"
set the filename of image "tmp" to empty

Robert