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EMF - String EMF Structures data into one string

Posted on 2008-10-24
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I am building a Report Print Preview Facility.
It will allow for programmatically inserting text, shapes, images, etc., into a report.
In addition it allows for EXPORTING the report to PDF and/or RTF.
I have built all this, and it happens just about fine.

My problem is with RTF output. Specifically with ROTATED Text.
To specify the text in a RTF file, I am going to construct the info into EMF string,
and place that info into the RTF file.
This WILL work.

I need to know the various "Type" definitions for the EMF Structures I will need
ONLY for the Rotated Text. I don't need them for anything else.
I can get the "C" definitions from Microsoft, but not the VB ones.

Where can I get these "type" definitions from ?

And, once I construct these structures, I need to string them all together into one long character string.
(The EMFHeader, any EMFData structures, end EMFEnd)

How can I string these all together ?

I also notice that (I think) the data in the string which originally had numbers (1,3,53, etc.) seems to be stored in lo-high order in the text string.
In other words, a simple number of 9, seems to be stored as 0900.
I think this is "little-Endian".

How do I make this happen?


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Question by:Antithesus
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Antithesus earned 0 total points
ID: 22809752
Well, after MUCH more research, and searching, and "Googleing",
I have pretty much figured it all out.

For EMF, there is 1 or 2 "header" structures, depending on how you fill it in,
and then there is only 1 DATA structure.
The DATA structure can be considerably different, depending on the "function" call it is for.

I dug around quite a bit, and spent the last 2 days examining and dissecting the hex file records I have,
and I was finally able to figure out just what the records (functions) are that I need,
and how to complete the DATA structure for all of them.

I have obtained all the EMF function codes, and have obtained a majority of the Enumerated values used in some of them.

I also now can write a routine to ensure that all my numeric values are in hex format,
padded with sufficient zeros to always ensure the length is divisible by 2.

I will create logic to transpose the necessary hex components strings into "little endian" strings.

And I can create logic to aggregate the necessary results all into the necessary strings to be able to write them all out into my EMF record.

So, I guess I don't really need any help from you guys.

Thanks anyway... I'll refund my points on this one too.

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