I need help - I can help - Rendering under DirectX

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Rendering under DirectX

Printed From: Debenu Quick PDF Library - PDF SDK Community Forum
Category: For Users of the Library
Forum Name: I need help - I can help
Forum Description: Problems and solutions while programming with the Debenu Quick PDF Library and Debenu PDF Viewer SDK
URL: http://www.quickpdf.org/forum/forum_posts.asp?TID=1454
Printed Date: 31 Oct 25 at 1:09AM
Software Version: Web Wiz Forums 11.01 - http://www.webwizforums.com

Topic: Rendering under DirectX

Posted By: mulfycrowh
Subject: Rendering under DirectX
Date Posted: 24 May 10 at 1:04PM

Hello,

I am developping an application under DirectX 9.

To render a page of my PDF file :

1/ I create an offscreen surface using CreateOffscreenPlainSurface method

2/ I get the device context of this surface with GetDC method

3/ I render using DARenderPageToDC on the device context

4/ I copy the surface onto the backbuffer

DARenderPageToDC tells me everything OK

Is this process OK because nothing is rendered on the screen ?

Many Thanks !

Replies:

Posted By: Ingo
Date Posted: 24 May 10 at 6:24PM

Hi!

Did you use non-DA-functions together with DA-functions?
This doesn't work.

Cheers, Ingo

Posted By: mulfycrowh
Date Posted: 24 May 10 at 8:18PM

Hi,

What do you mean by using DA and non DA functions ?

I only use DARenderPageToDC.

Do you mean I must not use this function and should use RenderPageToDC instead ?

Is there any example in rendering under DirectX ?

Many Thanks !

Posted By: mulfycrowh
Date Posted: 24 May 10 at 8:43PM

Sorry, I don't use DARenderPageToDC but RenderPagePageToDC.

I only use the DA function : DAFindPage to look for the page reference

Posted By: Ingo
Date Posted: 24 May 10 at 8:46PM

Hi!

There are DA-functions and non-DA-functions.
If you're using both kinds of functions in one instance then the results won't be correct.
So it's not possible to use LoadFromFile... and later in the code DARender...
If you're using DARender... then you have to use DAOpenFile...

Cheers, Ingo

Posted By: mulfycrowh
Date Posted: 24 May 10 at 8:53PM

Many thanks.

Is there any DirctX example ?

If not, am I right with GetDC ?

Posted By: Ingo
Date Posted: 24 May 10 at 9:52PM

Hi Marc!

There's no DirectX-sample but about using RenderPageToDC you'll find a lot with the search-function (the advanced one, above):
http://www.quickpdf.org/forum/quickpdf-render-to-device-context_topic1197_post5551.html?KW=RenderPageToDC#5551
http://www.quickpdf.org/forum/newbe-question_topic1134_post5265.html?KW=RenderPageToDC#5265
http://www.quickpdf.org/forum/pdf-viewer-in-vb6_topic1114_post5180.html?KW=RenderPageToDC#5180
http://www.quickpdf.org/forum/renderpagetodc-example-needed_topic1036_post4882.html?KW=RenderPageToDC#4882

Cheers, Ingo

Posted By: mulfycrowh
Date Posted: 25 May 10 at 8:56AM

Thank you so much