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First, I don't want to use Blit or StretchBlit, I will use another function to draw that bitmap to that area.
So I need to change the coordinates.
I did some research on the web and I found a...
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December 21st, 2020, 12:00 PM
The program wasn't written by me, however, when I said label, I meant the frequency "number", for example, 10KHz, 20KHz.
When the data comes out of the function, I receive a stack of vectors. But I...
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December 21st, 2020, 11:01 AM
Hello,
I am not sure I am allowed to ask FFT question here. I am using Visual Studio to program it.
First I've got a FFT function handy. But I will need to collect a certain amount of samples...
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November 29th, 2020, 02:08 AM
When I cracked open the vcxproj file, I see a lot of configurations like win32 and win64.
But where is the "active" configuration stored?
For example, when I compiled my program using win64 and...
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Hello guys,
I have some trouble understanding the following syntax.
This is supposed to be compiled under VS2019. Now, I want to compile it under 2015. How to make the changes to make them...
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April 18th, 2020, 09:23 AM
After establishing 4 channels arrays like this,
std::vector<std::vector<double>> rchannel;
std::vector<std::vector<double>> gchannel;
std::vector<std::vector<double>> bchannel;...
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November 12th, 2019, 02:12 AM
I've got a little Directdraw application, that currently is rendering into the desktop (the listview), but I want to divert it to another window, How can I get the surface address of the HWND?
...
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September 17th, 2018, 11:34 PM
First, I've got 2 separate device contexts to draw on, they are both static images. However, one of them is going to be moved around. As usual, these 2 device contexts is updated on a game loop,
the...
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September 8th, 2018, 08:03 AM
shortcut icons, taskbar, wallpaper etc, but I found the way...using ::InvalidateRect(NULL, NULL, FALSE);
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September 7th, 2018, 10:21 PM
I want to force the windows 7 desktop to refresh itself by force? and by code. How can I achieve this?
thanks
Jack
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September 7th, 2018, 06:20 PM
What paint operation can I use for the following truth table?
Truth Table
0 0 => 0
1 0 => Src
0 1 => Dest
1 1 => Src
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August 18th, 2018, 11:14 PM
The third-user library, inside of the c file, when I include the vector header, it just doesn't compile because of certain conflict. But I indeed want to retrieve a set of values out of that...
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July 18th, 2018, 09:54 PM
Dear all,
We used to have some little programs like the windows desktop dancers, which are very old stuff. But I wonder how they were made. any examples?
thanks
Jack
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June 27th, 2018, 04:52 AM
I've tried using ffmpeg, but I couldn't get it to work. At the very beginning, I cannot register the codecs by calling av_register_codecs() and later I couldn't find the relevant codec(s) to use....
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June 26th, 2018, 12:35 AM
If I use GetDesktopWindow(), it includes the window which starts the capturing, I don't want to include that window. Just everything except the firing program. how can I achieve this?
thanks
Jack
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June 18th, 2018, 11:37 PM
#define formula_( operand0, operator0, operand1 ) printf_s("%d %s %d", ##operand0, ##operator0, ##operand1 )
int red = 1;
int green = 2;
int blue = 3;
int v = formula_(red, "+", blue);
...
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The original definition of the matrix is:
template<class T, size_t Rows, size_t Cols> using matrix = std::array<std::array<T, Cols>, Rows>;
I was unable to compie this with some low-end...
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The line:
sum += (gauss[x + 2][y + 2] = exp(-(x * x + y * y) / s) / s / M_PI);
cannot be compiled.
which says:
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April 6th, 2018, 05:21 AM
I would like to create a boost::chrono::system_clock::time_point based on the supplied date and time...
What is the way to do it?
Thanks
Jack
void SimClock::SetStartTime(unsigned int year,...
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March 17th, 2018, 01:22 AM
float matWorld[16]
errno_t err = _wfopen_s( &fFile, File.c_str(), L"wb" );
fwrite( (void*) matWorld, sizeof(float), 16, fFile);
The numbers are as small as these
...
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January 1st, 2018, 01:52 AM
DexterLib::_AMMediaType mt;
ZeroMemory(&mt, sizeof(AM_MEDIA_TYPE));
//mt.majortype = MEDIATYPE_Video;
//mt.subtype = MEDIASUBTYPE_RGB24;
mt.majortype = MEDIATYPE_Audio;
mt.formattype =...
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December 31st, 2017, 11:34 PM
After creating a capture graph builder, how can I directly query a video capture filter? The example I have only got an enumerator for all devices thru monkiers... is it the only path I need to use?...
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December 27th, 2017, 04:18 AM
https://msdn.microsoft.com/en-us/library/windows/desktop/dd317586(v=vs.85).aspx
Thanks
Jack
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November 17th, 2017, 07:28 PM
Why this thing is always a problem? I mean I create FRAME's inside this function (the B) and return to the caller, then the caller accepts it as a derived class (the A)
newFrame->pFrameSibling ...
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