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A callback is a function that is passed as a pointer, and called from within another function, so you can get a 'call back' during the functions execution.
Christian
I have several lifelong friends that are New Yorkers but I have always gravitated toward the weirdo's. - Richard Stringer
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hello everybody, i want ask a question about how to display symmetric matrix based on the following code when we only input 6 value of array into it? 
#include <iostream>
using namespace std;
void main()
{
int array[6];
int i , j ;
cout << "Enter the values of the following :" << endl << endl;
for ( i = 0 ; i < 3 ; i++ )
{
for ( j = 0 ; j < 3 , j <= i ; j++ )
{
cout << " ["<<i<<"]["<<j<<"] =="" ";
="" cin="">> array[i];
}
}
cout << endl;
for ( i = 0 ; i < 3 ; i++ )
{
for ( j = 0 ; j < 3 ; j++ )
{
cout << " ["<
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Why not create a 2D array ?
Christian
I have several lifelong friends that are New Yorkers but I have always gravitated toward the weirdo's. - Richard Stringer
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well, it is hard to answer this one... not because I can't see the problem, but I can't figure out what you intended to do....
Were you trying to input the value for a 3x3 two dimensional array and output the same? Or were you trying to simulate a two dimensional array using a 1 dimensional array?
here is what I can note from what you are actually doing....
You are using only 3 values of the array, and overwriting them constantly using the inside loop.
if you want a 2 dimensional array, you want to define it with
int array [3][3]; // 9 total values in square 2 dimensional array
and input and output using
array[i][j];
if you want to use 9 values in a one dimensional array but input with 2 dimensions.
int array [9];
and access with:
array[i*3+j];
but without knowing what you intended to do, all I can tell you is that you are overwriting the values over and over and therefore not getting good input.
_________________________
Asu no koto o ieba, tenjo de nezumi ga warau.
Talk about things of tomorrow and the mice in the ceiling laugh. (Japanese Proverb)
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I changed the sample I found on this site to set recording time by bytes, but it still records by number milliseconds.
What is correct setting for recording by number of bytes?
DWORD CMyRecordDlg::RecordWAVEFile(DWORD dwMilliSeconds)
{
UINT wDeviceID;
DWORD dwReturn;
MCI_OPEN_PARMS mciOpenParms;
MCI_RECORD_PARMS mciRecordParms;
MCI_SAVE_PARMS mciSaveParms;
MCI_PLAY_PARMS mciPlayParms;
// Open a waveform-audio device with a new file for recording.
mciOpenParms.lpstrDeviceType = "waveaudio";
mciOpenParms.lpstrElementName = "";
if (dwReturn = mciSendCommand(0, MCI_OPEN,
MCI_OPEN_ELEMENT | MCI_OPEN_TYPE,
(DWORD)(LPVOID) &mciOpenParms))
{
// Failed to open device; don't close it, just return error.
return (dwReturn);
}
// The device opened successfully; get the device ID.
wDeviceID = mciOpenParms.wDeviceID;
//YTV
MCI_SET_PARMS Set;
Set.dwAudio=MCI_SET_AUDIO_ALL ;
Set.dwTimeFormat=MCI_SET_TIME_FORMAT|MCI_FORMAT_BYTES;
dwReturn = mciSendCommand(wDeviceID, MCI_SET,
MCI_WAIT|MCI_TO|MCI_FROM , (DWORD) &Set);
if(dwReturn!=0)
{
mciSendCommand(wDeviceID, MCI_CLOSE, 0, NULL);
return (dwReturn);
}
//YTV
// Begin recording and record for the specified number of
// milliseconds. Wait for recording to complete before continuing.
// Assume the default time format for the waveform-audio device
// (milliseconds).
mciRecordParms.dwTo = 1000;//dwMilliSeconds;
if (dwReturn = mciSendCommand(wDeviceID, MCI_RECORD,
MCI_TO | MCI_WAIT, (DWORD)(LPVOID) &mciRecordParms))
{
mciSendCommand(wDeviceID, MCI_CLOSE, 0, NULL);
return (dwReturn);
}
// Play the recording and query user to save the file.
mciPlayParms.dwFrom = 0L;
if (dwReturn = mciSendCommand(wDeviceID, MCI_PLAY,
MCI_FROM | MCI_WAIT, (DWORD)(LPVOID) &mciPlayParms))
{
mciSendCommand(wDeviceID, MCI_CLOSE, 0, NULL);
return (dwReturn);
}
if (MessageBox("Do you want to save this recording?",
"", MB_YESNO) == IDNO)
{
mciSendCommand(wDeviceID, MCI_CLOSE, 0, NULL);
return (0L);
}
// Save the recording to a file named TEMPFILE.WAV. Wait for
// the operation to complete before continuing.
mciSaveParms.lpfilename = "tempfilebytes.wav";
if (dwReturn = mciSendCommand(wDeviceID, MCI_SAVE,
MCI_SAVE_FILE | MCI_WAIT, (DWORD)(LPVOID) &mciSaveParms))
{
mciSendCommand(wDeviceID, MCI_CLOSE, 0, NULL);
return (dwReturn);
}
return (0L);
}
ytvsoftware
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Hi,
I was wondering if anyone knows of a simple way to force a console to close - even if it's running an application. I have no problem finding the consoles (with EnumWindows, using GetClassName etc.), but of course I can't close them if they are currently running an application (which I also want terminated). Is there anyway to automatically do this, or at least to easily find the associated application that I can then kill first? Thanks.
GraemeS
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erm, wouldn't ctrl-break solve the problem? it'll terminate the program, if that's all that u're looking for.
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I don't think I spelt the problem out clearly enough. I'm trying to close consoles that were not launched by my program (it's actually a complex simulation - and when I want to stop it I have to work through the taskbar manually closing up to 10 console apps). In other words, calls like GenerateConsoleCtrlEvent(..) won't help, since the console I'm trying to close isn't shared by my calling program. I could do something a little more cumbersome (e.g. build a list of running processes and manually select those that need to be killed), but I was looking for a single "click" shortcut that would kill all the consoles (and their apps) for me. Any suggestions would thus be most appreciated.
GraemeS
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Hi,
I need to use the 2Complement form in my application,for negative numbers.
the problem is that i need to do it for 10bits only.
this is what i'm doing:
int num;
if(num < 0)
{
num = ~(abs(num));
num++;
}
but this is the way for 32bit and i need to do this for 10bits.
someone?????
With best regards,
Eli
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Is this a homework problem because num is stored in twos compliment automatically by the cpu.
How about the right shift operator and then masking the output to 10 bits.
John
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Hi,
Why do you think this is homework problem???
Actuclly this is WORK problem.
I just saw that num is stored automatically in two compliment by the cpu,
and masking it to 10bit is all i have to do.
anyway,
thanks for your help,
Eli
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In most cases problems like these are excercises for a low level programming class. We are not allowed to solve anyones homework here so I was being a little bit cautious. When I think of it I guess you are correct there is no shifting involved. Sorry for that bad advice, I have not delt with this in at least 10 years...
John
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Hello All,
I am porting a old NT Driver to 64-bit driver for AMD machine. I am new to this Drivers completely. Somehow I went throught the documentation and was able to build the graphics DLLs required. But I need information about the DLL generated.
Are there any tools to know the information of a DLL, like,
1. What is the mode in which this DLL will run.
2. Whether it is a 64-bit DLL or 32-bit DLL.
3. Whether it is build for Windows 2003 Server/Windows XP or not
4. Whether the driver is for a AMD machine or any other machine etc.
Please suggest me any tool which can answer me these questions and more.
(OR) suggest me a way to get these details.
regards,
Sarma
Sarma M.B.K.N
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hi everyone:
i m looking for a function named Dijkstra for c language, i m using dos,not vc++. Thank u very much.
cage
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search for the shortest path between 2 point
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ahhhhhhhhh
this one !!!!!!! 
sorry, for me, i don't know more...
TOXCCT >>> GEII power
[toxcct][VisualCalc]
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thank u , i m having a looking
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i've recently programmed dijkstra in vc++. if u like i could send it to you. however i can only send u the dijkstra class as the rest of the classes are classified, so it won't compile. but u can get an idea of how dijkstra can be implemented. pm me if u like.
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The following artical: http://www.codeproject.com/cpp/msnchattext.asp#xxxx
gives instructions on how to get data from another program.
It uses commands such as: HWND
I understand program messages such as: WM_COPY
but I need mor help. Can eny one refer me to a web site?
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Where in VC++ 6.0 can I find routines for controlling text and graphics output in console applications, like it was possible in C/C++ versions up to 1.5 using GRAPH.LIB? For example: set cursor position on text screen. Is it an element of Win SDK now?
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