Re: To get user input from a window. - C / C++ / MFC Discussion Boards

713minchi29-Oct-07 22:46

29-Oct-07 22:46

I want to create a window through which a user can input say two numbers and this data is to be displayed after some manipulations on a seperate window in a grid. I am new to use VC++ don't know much about MFC. Can anyone give me an idea how should I start...Thank you

Re: To get user input from a window.

Nishad S29-Oct-07 23:34

Nishad S

29-Oct-07 23:34

You can do it in a dialog based application. Use two edit controls to get the data.

But what do you meant by "separate window in a grid"?

- NS -

Re: To get user input from a window.

713minchi31-Oct-07 1:10

713minchi

31-Oct-07 1:10

Sorry I wasn't clear about the grid part...What I meant was like suppose it's the location of two points then to represent it on a X-Y plane...

Re: To get user input from a window.

Nishad S31-Oct-07 1:14

Nishad S

31-Oct-07 1:14

Means you need to show a point in graph like control? Then you may have to go for a custom control.

- NS -

Re: To get user input from a window.

Hamid_RT30-Oct-07 0:37

Hamid_RT

30-Oct-07 0:37

And these editbox must set to number on the property window of editbox.do you want to send result to other window?

Re: To get user input from a window.

713minchi31-Oct-07 1:15

713minchi

31-Oct-07 1:15

yeah...actually to represent it as in on X-Y plane if the inputs are the locations of a point...

Re: To get user input from a window.

Hamid_RT31-Oct-07 4:15

Hamid_RT

31-Oct-07 4:15

For show value on the editbox you can use of SetWindowText.

Re: To get user input from a window.

David Crow30-Oct-07 3:22

David Crow

30-Oct-07 3:22

713minchi wrote:
I want to create a window...

If this window is to be created at runtime, use CreateWindow().

"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman

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Playing AVI directly that is inside in a bigger data file

sdancer7529-Oct-07 22:06

sdancer75

29-Oct-07 22:06

Hi,

Is that possible to use MCIWnd or any other Lib to play an avi file that is part of a bigger data file and the starting disk offset is known ?

For example I am trying to make this

copy /b text.txt+movie.avi final.dat /b

This creates a new binary file that is the joint of the files text.txt and movie.avi. I know that text.txt is 10 bytes long and in the 11th byte it starts the AVI movie. Is that possible to play it directly (without extracting it) within final.dat ?

Regards,

sdancer75

Re: Playing AVI directly that is inside in a bigger data file

Neo Andreson30-Oct-07 20:22

Neo Andreson

30-Oct-07 20:22

i think DirectShow can help you to do the same.

Images serialization

aolihu29-Oct-07 21:42

aolihu

29-Oct-07 21:42

Hi,
I wanna make a serialization class in MFC, the class include CString,int,Images(GIF). I am wondering if MFC provides some kind of binary stream function for Images de-/serialization. For me, how to the serialize Images a headache problem. Could any one help me ...
Thanks ,
zran

zran

Re: Images serialization

Paresh Chitte29-Oct-07 21:47

Paresh Chitte

29-Oct-07 21:47

Will CArchive class helpful ?

Regards,
Paresh.

Re: Images serialization

aolihu29-Oct-07 22:51

aolihu

29-Oct-07 22:51

Thanks,
In my opinion CArchive only support TEXT Data like 'CString' 'char' 'int' etc. Images(GIF) is binary Data...
ps: I use vc++6

Re: Images serialization [modified]

Nelek29-Oct-07 23:43

Nelek

29-Oct-07 23:43

You can use CFile, but actually the CArchive can deal with what you need. At last... all data can be stored like BYTES, the content or the meaning of every byte depends on your serialize function and whatever order you use to write / read datas

You can send the value of a variable in int/double format, the content of a string, coordinates of CPoint about positions on the screen or about a graphic, (or about your question) values or RGB pixels with a fixed order (btw, a picture can be understood as a matrix of pixels with a value for the color in every position)

-- modified at 6:33 Tuesday 30th October, 2007

Re: Images serialization

aolihu9-Nov-07 3:48

aolihu

9-Nov-07 3:48

Nelek, Thanks for u advice.The key of the problem is how to deal with picture and binary stream. I used GDI+ Library and got the answer smoothly.
Part of code below:
///////////////begin/////////////////
if(ar.IsStoring()){
HGLOBAL m_hMem = GlobalAlloc(GMEM_MOVEABLE, 0);
IStream *pstm=NULL;
CreateStreamOnHGlobal(m_hMem, TRUE, &pstm);
CLSID clsid;
USES_CONVERSION;
GetCodecClsid(A2W("image/jpeg"), &clsid);
m_pImage->Save(pstm,&clsid,NULL);
if (pstm==NULL)
return;
LARGE_INTEGER liBeggining = { 0 };
pstm->Seek(liBeggining, STREAM_SEEK_SET, NULL);
DWORD wTemp=GlobalSize(m_hMem);
LPBYTE lpData = (LPBYTE)GlobalLock(m_hMem);
ar << wTemp;
ar.Write(lpData,wTemp);
pstm->Release();
GlobalUnlock(m_hMem);
}
else{
DWORD wTemp;
ar >> wTemp;
HGLOBAL m_hMem = GlobalAlloc(GMEM_FIXED, wTemp);
if (m_hMem == NULL)
return;
IStream *pstm=NULL;
CreateStreamOnHGlobal(m_hMem,FALSE,&pstm);
if (pstm==NULL)
return;
BYTE* pmem = (BYTE*)GlobalLock(m_hMem);
ar.Read(pmem,wTemp);
if (m_pImage) {
delete m_pImage;
m_pImage = NULL;
}
using namespace Gdiplus;
if (m_pImage!=NULL)
{
delete m_pImage;
m_pImage=NULL;
}
m_pImage = Image::FromStream(pstm, FALSE);
pstm->Release();
GlobalUnlock(m_hMem);
}
//////////////end////////////////// Smile | :)

In my application, i use a CWebBrowser control to display the content from a serialize file. There is a new question to me, how to load 'm_pImage'? Confused | :confused:

Could you give me more suggestion, Thanks for anything...

Re: Images serialization

Nelek14-Nov-07 3:41

Nelek

14-Nov-07 3:41

Does LoadBitmap (...) dont work for you?

Greetings.

--------
M.D.V.

If something has a solution... Why do we have to worry about?. If it has no solution... For what reason do we have to worry about?

Help me to understand what I'm saying, and I'll explain it better to you

“The First Rule of Program Optimization: Don't do it. The Second Rule of Program Optimization (for experts only!): Don't do it yet.” - Michael A. Jackson

Wink | ;)

Create Xml document from xml schema (xsd) file

SumoRaj29-Oct-07 21:32

SumoRaj

29-Oct-07 21:32

Is there any way to create sample XML document dynamically using the xsd file?

Sumathi

run exe

john563229-Oct-07 21:06

john5632

29-Oct-07 21:06

Hi experts,
how to run a exe thorugh code.

Re: run exe

Hamid_RT29-Oct-07 21:13

Hamid_RT

29-Oct-07 21:13

You can use of ShellExecute or ShellExecuteEx or CreateProcess or WinExec.

Re: run exe

john563229-Oct-07 21:48

john5632

29-Oct-07 21:48

I have a Reg.exe file in my projet folder .
Could you tell me what is wrong with it to run exe file.

CreateProcess(NULL , // No module name (use command line).
_T("Reg"), // Command line.
NULL, // Process handle not inheritable.
NULL, // Thread handle not inheritable.
FALSE, // Set handle inheritance to FALSE.
0, // No creation flags.
NULL, // Use parent's environment block.
NULL, // Use parent's starting directory.
NULL, // Pointer to STARTUPINFO structure.
NULL );

Re: run exe

Hamid_RT29-Oct-07 22:04

Hamid_RT

29-Oct-07 22:04

Try with this code

PROCESS_INFORMATION l_ProcessInfo;
STARTUPINFO l_StartupInfo;
ZeroMemory(&l_StartupInfo, sizeof(STARTUPINFO));

l_StartupInfo.cb = sizeof(STARTUPINFO);
l_StartupInfo.dwFlags = STARTF_USESHOWWINDOW;
l_StartupInfo.wShowWindow = SW_SHOWMAXIMIZED;

CreateProcess(NULL, 
			  _T("e:\\123.exe"), 
NULL, 
NULL, 
FALSE,
DETACHED_PROCESS,
NULL,
NULL,
&l_StartupInfo,
&l_ProcessInfo);