yang686526

obtain thumbnail from dwf file
obtain thumbnail from dwf file
i am using oddbgetpreviewbitmap to retrieve the thumbnail image from dwf and dxf files. it appears that this function does not work for dwf files. is this true? however, it is my understanding that dwf files can contain embedded thumbnails. how can the thumbnails be retrieved from dwf files?
you can use dwf toolkit to extract thumbnail.
vladimir
are you referring to the autodesk dwf toolkit?
i am currently importing dwf files, so i'm currently linking with these libraries:
dd_dwf7import
dd_dwf7toolkit
dd_dwf7w3dtk
dd_dwf7whiptk
dd_dwf7core
by linking in these libraries am i including everything i need for the "dwf toolkit", or do i need to link with the autodeskdwf toolkit?
just a little more detailed explanation would be helpful. thanks.
if you are using one of the platforms supported by autodesk dwf toolkit, the easiest way for you is to rebuild dwfimport using downloaded autodesk dwf toolkit.
if you taget some platforms not supported by autodesk dwf toolkit, but supported by dd, you will need to apply our porting changes first.
in any case, you won't need pre-built dd dwf related libraries.
to use dwfimport project files unmodified, you have to unpack dwf toolkit to "\thirdparty\dwftoolkit-7.3\"
vladimir
ok, i understand.
i have just one more question. i've studied the source code and examples for the dwf toolkit, but it's not immediately obvious to me how to obtain the thumbnail image. i thought that perhaps you might have some experience or insight into this. if you can easily point me to an example or provide some guidance on how to do this, that would be great. if not, i guess i'll eventually figure it out.
i never extacted preview from dwf but i guess it is one of the resource streams. there are samples of enumerating resources, and there shoud be a dwfgraphicresource with some approprate name. it shouldn't be hard to figure out.
vladimir