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Printing jpeg/gif files

Posted on 2000-04-18
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Last Modified: 2013-11-20
Hi friends,
 I want to print jpeg/gif files from a dialog application.
 I tried the ShellExecute(Hwnd,"print",filename,NULL,NULL",SW_HIDE) command.it's printing only bmp files.
Hwnd - handle to window which i set it as NULL.
How do you set the handle to a window in a dialog application and also how do U save the contents of a window in a dialog application.
I am very thankful to any kind of help you provide.





 
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Question by:mohit_rao
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mikeblas earned 20 total points
ID: 2727660
Windows doesn't natively understand GIF or JPEG files. You'll need to get a library to convert the files to bitmaps, then print the bitmaps. You can do that all in-memory, without writing a file and spawning another program.

There are dozens of shareware and freeware image format decoding routines avaialble--just search the web. http://www.codeguru.com/ is a site that has many.  Search with your favorite engine for "JPEG" and "C Source", too.

..B ekiM
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by:mohit_rao
ID: 2729354
i would want a more elaborate answer than this, how would u achieve this in memory (would you save any jpeg/gif files as .bmp before printing with shellexecute ? ),thank u very much for ur help and i will surely have a look at codeguru.com for the c source
thank you
Mohit.M
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by:mikeblas
ID: 2729413
> i would want a more elaborate answer than this,

Then, you'll need to offer more than 10 points.

 > memory (would you save any jpeg/gif files as .bmp before
 > printing with shellexecute ?

No.  Like I said, you're doing it all in memory--there's no need to write a file, and no need to spawn another process. All that stuff is just going to slow your program waaay down.

..B ekiM


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by:mohit_rao
ID: 2729501
I am ready to 50 points mike
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by:mikeblas
ID: 2729547
> I am ready to 50 points mike

To me, it sounds like you want a code sample. I won't write a sample for less than 100 points. If you want me to write a sample, you'll also need to identify the specific decoders you want to use.

Regardless of what happens, you'll need to open a new question: you accepted this answer, so this question is over.

..B ekiM
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