Simultaneous Previewing & Video Capture using DirectShow [modified]
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I want to capture bitmap on "capture video" from "Live video" when I click button "Capture Image" on Dialog. Don't need save this bitmap. How should I do? (note: I insert a button "Capture Image") aloha
So what difficulties are you facing using the GrabFrame() and GetFrame() functions? Be specific about what you have tried and what you are trying to achieve.
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I posted this question on two forum "code project" and "code guru" because this article author posted the same . aloha
Just because someone wrote an article does not mean they will read this forum on the day you happen to post a question. So, like I said, you need to either ask a generic question that does not refer to an article, or post the question in the forum for the article ( at the bottom of the article ) in order to generate an email that will alert the author, and then if the author is still supporting his articles, he will get back to you. So far, he probably doesn't even know that you asked a question. Christian Graus - Microsoft MVP - C++ Metal Musings - Rex and my new metal blog
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So what difficulties are you facing using the GrabFrame() and GetFrame() functions? Be specific about what you have tried and what you are trying to achieve.
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Just because someone wrote an article does not mean they will read this forum on the day you happen to post a question. So, like I said, you need to either ask a generic question that does not refer to an article, or post the question in the forum for the article ( at the bottom of the article ) in order to generate an email that will alert the author, and then if the author is still supporting his articles, he will get back to you. So far, he probably doesn't even know that you asked a question. Christian Graus - Microsoft MVP - C++ Metal Musings - Rex and my new metal blog
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I asked the author, but I don't know why doesn't reply so I posted on forum.If you are unpleasure, I'm sorry aloha
To be frank, I really don't care, except that I'd like to see you get the help you need. If the author is not replying, then I'd try rewording the question so that it doesn't refer to the article and post it here again. I'm sorry if you thought I was complaining, I was trying to direct you to where you'd be mostly likely to get the help you're wanting. Christian Graus - Microsoft MVP - C++ Metal Musings - Rex and my new metal blog
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To be frank, I really don't care, except that I'd like to see you get the help you need. If the author is not replying, then I'd try rewording the question so that it doesn't refer to the article and post it here again. I'm sorry if you thought I was complaining, I was trying to direct you to where you'd be mostly likely to get the help you're wanting. Christian Graus - Microsoft MVP - C++ Metal Musings - Rex and my new metal blog
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If you have a question post it here. There's no need to send me an e-mail.
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I'm sorry, I don't think you are complaining, thank for your direction what's your nickname? I want to exchange on Yahoo Messenger aloha
I don't have any messenger installed, sorry. Christian Graus - Microsoft MVP - C++ Metal Musings - Rex and my new metal blog
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If you have a question post it here. There's no need to send me an e-mail.
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I don't have any messenger installed, sorry. Christian Graus - Microsoft MVP - C++ Metal Musings - Rex and my new metal blog
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You didn't answer my previous question. What difficulties are you facing with the GrabFrame() and GetFrame() functions? What have you written so far in your handler? Did you even look at his OnTimer handler?
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You didn't answer my previous question. What difficulties are you facing with the GrabFrame() and GetFrame() functions? What have you written so far in your handler? Did you even look at his OnTimer handler?
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I don't know useful of imagecapture() function, grabFrame() and GetFrame() are used for "Live Video" window aloha
You still aren't answering my questions. And I still don't know what the problem is nor what you are trying to do. The article presents a very unconventional way of capturing an image off a filter graph, and requires that a VMR video renderer be used. Depending on what you need, and what you can assume of the system it will be installed in, this may or may not be a good technique to use. Ok how about this, you copy the OnTimer handler and put it in your handler.
DWORD dwSize;
dwSize=this->m_VMRCap.GrabFrame();
if(dwSize>0)
{
BYTE *pImage;
this->m_VMRCap.GetFrame (&pImage);
this->m_ctrlCaptureIMG .ShowImage (pImage);
} -
You still aren't answering my questions. And I still don't know what the problem is nor what you are trying to do. The article presents a very unconventional way of capturing an image off a filter graph, and requires that a VMR video renderer be used. Depending on what you need, and what you can assume of the system it will be installed in, this may or may not be a good technique to use. Ok how about this, you copy the OnTimer handler and put it in your handler.
DWORD dwSize;
dwSize=this->m_VMRCap.GrabFrame();
if(dwSize>0)
{
BYTE *pImage;
this->m_VMRCap.GetFrame (&pImage);
this->m_ctrlCaptureIMG .ShowImage (pImage);
}void CDXCaptureDlg::OnCapImage() { DWORD dwSize; dwSize=this->m_VMRCap.GrabFrame (); if(dwSize>0) { BYTE *pImage; this->m_VMRCap.GetFrame (&pImage); this->m_ctrlCaptureIMG .ShowImage (pImage); } } this code is used to capture a video, but I want to capture a bitmap aloha -- modified at 2:51 Tuesday 20th June, 2006
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void CDXCaptureDlg::OnCapImage() { DWORD dwSize; dwSize=this->m_VMRCap.GrabFrame (); if(dwSize>0) { BYTE *pImage; this->m_VMRCap.GetFrame (&pImage); this->m_ctrlCaptureIMG .ShowImage (pImage); } } this code is used to capture a video, but I want to capture a bitmap aloha -- modified at 2:51 Tuesday 20th June, 2006
The code does not capture a video and I don't even know how you came to that conclusion. I would suggest you read the code and understand what is going on first. The code gets the current bitmap in the VMR renderer and ensures that it is in RGB24. pImage will end up as an array of RGBTRIPLEs that makes up the image. Note that he discards the bitmap header in GrabFrame() all you have is just the RGB24 data. If you want to create a HBITMAP with this, look up CreateDIBitmap on msdn.