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  Re: Buffering and Bliting in DirectX         


Author:
Date: Dec 24, 2008 12:04

[Please do not mail me a copy of your followup]

=?Utf-8?B?QWFyb24gU3R1YmJlbmRpZWNr?= discussions.microsoft.com> spake the secret code
<0A0FDAD5-913D-47EC-B38D-C4CEEDA2A094@microsoft.com> thusly:
>Now that I've rendered the points I'd like the user to be able to draw a
>selection box over the data while dragging without replotting all the data
>each time the mouse moves. [...]

The Direct3D way of doing this is to render everything into a plain
render target surface that is *not* your back buffer. Then to do a
quick refresh, you copy the plain render target contents to the back
buffer and draw your rectangle, then present.
--
"The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download
<http://www.xmission.com/~legalize/book/download/index.html>

Legalize Adulthood! <http://blogs.xmission.com/legalize/>
2 Comments
  How to play video file asynchronously as chunk of buffer ?         


Author: mahendra
Date: Sep 9, 2008 03:38

hi,
I am playing video file synchronously on window mobile m 6.0.
I want to play video file asynchronously with chunk of buffer.
Does any have idea about that?

here is my code.

// ChildView.h : interface of the CChildView class
//

#ifndef __CHILDVIEW__
#define __CHILDVIEW__

#include // link against Strmiids.lib for IDD , CLSID

// CChildView window

class CChildView : public CWnd
{
// Construction
public:
CChildView();

// Attributes
public:
Show full article (8.78Kb)
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  List all available filters         


Author: Bob
Date: Sep 8, 2008 19:29

I need to list all available filters on a system, primarily for access
to audio plugins (like Reverb, Compressors, etc)

ICreateDevEnum obviously lists devices in certain categories, but
audio plugins do not seem to have a relevant category.

IFilterMapper2 can supposedly be used but I haven't seen any managed
code samples (if they exist).

1: Has anyone seen managed code using IFilterMapper2?

2: Are there other ways of listing audio plugins?
1 Comment
  Playsound issue over remote connection         


Author: Hazel
Date: Sep 8, 2008 14:07

Hi,
We are using the PlaySound() API to play some wav files (which we load to
the memory and play the stored file). Our program works fine when we run it,
however if we run it in a remote desktop session, the sound doesn't get
transmitted over even though we have specified the option to "Bring to this
computer" the remote computer sound. If we use SoundPlayer() there is no
issue, also if we play any sound using soundplayer and then use PlaySound()
the issue goes away. it seems like we need to "wake up the audio stream"
first.
This issue came up only after we moved to .Net 2.0.
Any suggestions?
Thank you,
Hazel
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  Capture audio to WAV file         


Author: Bob
Date: Sep 6, 2008 00:07

I'd like to find samples of code for capturing audio (from mic or
input channel) to a .WAV file.

It would be a plus to find this in C#, using the DirectShow.net lib.

Anything?
3 Comments
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Date: Sep 2, 2008 01:48

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  Is MDX deprecated?         


Author: marc.crandall
Date: Aug 27, 2008 14:13

Should MDX still be used for new .NET development (on Vista and XP)?

Is Microsoft still supporting this technology?
What are the alternatives, particularly for sound, in the .NET
framework?

Thanks

MAC
2 Comments
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