C / C++ / MFC Discussion Boards

Stirfie12-May-05 2:17

12-May-05 2:17

I am starting to learn c++, and have managed to get hold of a copy of Visual stutio 6. I looked into .net and found that if somebody does not have the .net environment, the apps will not work. Is an MFC app compiled with all the necessary classes to run under its own steam, or does it rely on other files? In other words, if I create an MFC app, will it run on a standard install of win 98,2000, xp. I know mfc adds a little overhead to the finnished app, but at this stage my apps will be tiny anyway.

Regards
Paul

Re: mfc verses .net

David Crow12-May-05 2:22

David Crow

12-May-05 2:22

Stirfie wrote:
...and have managed to get hold of a copy of Visual stutio 6.

How much is it being sold for these days?

Stirfie wrote:
In other words, if I create an MFC app, will it run on a standard install of win 98,2000, xp.

Most likely it will. The two main files that are required are mfc42.dll and msvcrt.dll, both of which are probably on the target machine.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: mfc verses .net

Priyank Bolia12-May-05 2:28

Priyank Bolia

12-May-05 2:28

DavidCrow wrote:

How much is it being sold for these days?

Less than 2 US dollar at Nehru place, New delhi, India..... Laugh | :laugh:

http://www.priyank.in/

Re: mfc verses .net

ThatsAlok12-May-05 2:36

ThatsAlok

12-May-05 2:36

Priyank Bolia wrote:
Less than 2 US dollar at Nehru place, New delhi, India.....

Priacy Smile | :)

, what about CD Borrowing from Friend Big Grin | :-D

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

Re: mfc verses .net

Priyank Bolia12-May-05 2:45

Priyank Bolia

12-May-05 2:45

No, I borrow from my company, and about my friends, they borrow from others who ultimately get from the same source "The great Nehru Place". And by the way, if you have the original 800US$ edition of VS.NET, please lend me the CDs Smile | :)

.;)

http://www.priyank.in/

Re: mfc verses .net

ThatsAlok12-May-05 2:58

ThatsAlok

12-May-05 2:58

Priyank Bolia wrote:
if you have the original 800US$ edition of VS.NET, please lend me the CDs

If I do that, My Company certainly going to ............ me Smile | :)

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta

Re: mfc verses .net

Priyank Bolia12-May-05 2:32

Priyank Bolia

12-May-05 2:32

Stirfie wrote:
if somebody does not have the .net environment, the apps will not work

The .net runtime is redistributable free of charge with your app. other main interest is that large part of .net is open standard and supported on other platforms also. And .net runtime will comes with the OS, now-a-days or in near future......I guess so.

http://www.priyank.in/

Re: mfc verses .net

Blake Miller12-May-05 11:19

Blake Miller

12-May-05 11:19

.NET will probably NEVER come with Windows 98... D'Oh! | :doh:

Re: mfc verses .net

Priyank Bolia12-May-05 18:57

Priyank Bolia

12-May-05 18:57

Blake Miller wrote:
.NET will probably NEVER come with Windows 98...

Ya, I also think so, but the point is WIN98 is 7 years old OS, and technology changes every day. I am talking about future releases of MS OS.

http://www.priyank.in/

Re: mfc verses .net

Priyank Bolia12-May-05 2:36

Priyank Bolia

12-May-05 2:36

Stirfie wrote:
if I create an MFC app, will it run on a standard install of win 98,2000, xp.
My apps are tested on Windows NT 4.0 to Windows Server 2003, provided I distribute mfc*.dll and msvcrt.dll with the app, as Mr. David says. Or you link MFC as static library in the project options.

http://www.priyank.in/

VC++ Intellisense

_indra_m12-May-05 1:10

_indra_m

12-May-05 1:10

Is intellisense helpful for u?
What's the good one you think?

Re: VC++ Intellisense

Priyank Bolia12-May-05 1:15

Priyank Bolia

12-May-05 1:15

Don't know, but Visual Assist is very helpful, and I am sure about it.

http://www.priyank.in/

Re: VC++ Intellisense

David Crow12-May-05 2:08

David Crow

12-May-05 2:08

I don't rely upon it, but it is very handy when it does work.

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

Re: VC++ Intellisense

Bob Flynn12-May-05 3:35

Bob Flynn

12-May-05 3:35

I am a fan of Visual Assist. I have been using it for a couple years now and I can stand when I get on a computer without it.

TAB in a Listbox?

Larsson12-May-05 0:21

Larsson

12-May-05 0:21

I need to insert text to Listbox with tab

Exemple
Text1 "TAB" Text2 "TAB" Text3

How can I do that?

Re: TAB in a Listbox?

«_Superman_»12-May-05 0:38

«_Superman_»

12-May-05 0:38

Check the 'Use Tabstops' checkbox in the style tab of the list box properties.
Then give the text as "Text1\tText2\Text3"

« Superman »

Re: TAB in a Listbox?

Larsson12-May-05 1:53

Larsson

12-May-05 1:53

No I have try that and it dont work.

Re: TAB in a Listbox?

David Crow12-May-05 2:11

David Crow

12-May-05 2:11

What results are you getting?

"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown

"GetDIBits: undeclared identifier" in eVC++ 4.0

chongkeng_woon11-May-05 23:49

chongkeng_woon

11-May-05 23:49

I use ATL Com AppWizard(in embedded Visual C++) to create a signature capturing DLL, i successfully let user to sign on a given rectangle square box.

However,
i have a big problem when coming to capture the signature inside the rectangle and save it to bmp (or jpg) file. i get the following attached code and trying to compile it inside embedded Visual C++ 4.0, and it comes out this error:

"GetDIBits: undeclared identifier" ...

it seems like eVC++(or Pocket PC 2003 SDK) doesn't have this library or doesn't support this function...

is there anyway i can do it ? this problem has been struggling me for few days ...

thanks

int WindowToBmpFile(LPCTSTR szFName, HWND hWnd)
{

HDC hDC, hMemDC;
HANDLE hBits, hFile;
HBITMAP hBitmap, hTmpBmp;
RGBQUAD RGBQuad;
DWORD ImgSize, plSize, dwWritten;
int i, CRes, Height, Width;
BITMAPFILEHEADER bmFH = {0x4d42, 0, 0,0};
LPBITMAPINFO pBmInfo, pBmInfoMem;

if((hFile = CreateFile(szFName, GENERIC_WRITE,0,NULL,CREATE_ALWAYS,FILE_ATTRIBUTE_NORMAL,NULL)) == NULL) return 1;

SetCursor(LoadCursor(NULL, IDC_WAIT));

if(hWnd==HWND_DESKTOP)
{
Width = GetSystemMetrics(SM_CXSCREEN);
Height = GetSystemMetrics(SM_CYSCREEN);
}
else
{
RECT rc;
::GetClientRect(hWnd,&rc);
Width = rc.right-rc.left;
Height = rc.bottom-rc.top;
}

hDC = ::GetDC(hWnd);
hMemDC = CreateCompatibleDC(hDC);
hBitmap= CreateCompatibleBitmap(hDC, Width, Height);
pBmInfoMem = (LPBITMAPINFO)GlobalAlloc(GHND, sizeof(BITMAPINFO)+256*sizeof(RGBQUAD));
pBmInfo = (LPBITMAPINFO)GlobalLock(pBmInfoMem);
ZeroMemory(pBmInfo, sizeof(BITMAPINFO)+256*sizeof(RGBQUAD));
SelectObject(hMemDC, hBitmap);
BitBlt(hMemDC,0,0,Width,Height,hDC,0,0,SRCCOPY);

pBmInfo->bmiHeader.biSize = (DWORD)sizeof(BITMAPINFOHEADER);
pBmInfo->bmiHeader.biWidth = Width;
pBmInfo->bmiHeader.biHeight = Height;
pBmInfo->bmiHeader.biPlanes = 1;
pBmInfo->bmiHeader.biBitCount = (WORD)GetDeviceCaps(hDC, BITSPIXEL);
pBmInfo->bmiHeader.biCompression = BI_RGB;
pBmInfo->bmiHeader.biClrUsed = 256;
GetDIBits(hDC, hBitmap, 0,Height, NULL, pBmInfo, DIB_RGB_COLORS);
if(!pBmInfo->bmiHeader.biSizeImage)
pBmInfo->bmiHeader.biSizeImage = ((((pBmInfo->bmiHeader.biWidth * pBmInfo->bmiHeader.biBitCount) + 31) & ~31) /
* pBmInfo->bmiHeader.biHeight;
CRes = GetDeviceCaps(hDC, SIZEPALETTE);
plSize = CRes*sizeof(RGBQUAD);
ImgSize= pBmInfo->bmiHeader.biSizeImage;

bmFH.bfOffBits = plSize + sizeof(BITMAPINFOHEADER) + sizeof(BITMAPFILEHEADER);
bmFH.bfSize = ImgSize + bmFH.bfOffBits;

WriteFile(hFile, &bmFH, sizeof(BITMAPFILEHEADER), &dwWritten, NULL);
WriteFile(hFile, &(pBmInfo->bmiHeader), sizeof(BITMAPINFOHEADER), &dwWritten, NULL);

hBits = GlobalAlloc(GHND, pBmInfo->bmiHeader.biSizeImage);
LPVOID lpBits = (LPVOID)GlobalLock(hBits);
ZeroMemory(lpBits, pBmInfo->bmiHeader.biSizeImage);
GetDIBits(hDC, hBitmap, 0,Height, lpBits, pBmInfo, DIB_RGB_COLORS);

WriteFile(hFile,lpBits,ImgSize,&dwWritten,NULL);
GlobalUnlock(lpBits);

GlobalUnlock(hBits);
GlobalFree(hBits);

GlobalUnlock(pBmInfo);
GlobalFree(pBmInfoMem);
DeleteObject(hBitmap);
DeleteDC(hMemDC);
::ReleaseDC(hWnd,hDC);
CloseHandle(hFile);
SetCursor(LoadCursor(NULL,IDC_ARROW));

return 0;
}

Hex number string to decimal number string (and vica versa)

Heiko Gschwind11-May-05 21:57

Heiko Gschwind

11-May-05 21:57

Hi,

I have to convert a string which is representating a hex number (e.g. "FE34") into a string which displays the decimal number ("65076"). Because the length of number may be upto 1000 (byte array) I cannot use a sscanf/sprintf methods.
Any ideas how I can solve the problem?

Best Regards
Heiko

Re: Hex number string to decimal number string (and vica versa)

Priyank Bolia11-May-05 23:50

Priyank Bolia

11-May-05 23:50

    char *s = "FE34", ch;
    double dwNUM = 0;
    while(*s != NULL)
    {
        ch = (char)*s;
        dwNUM *= 16;
        switch(ch) {
        case '0':
            dwNUM += 0;
            break;
        case '1':
            dwNUM += 1;
            break;
        case '2':
            dwNUM += 2;
            break;
        case '3':
            dwNUM += 3;
            break;
        case '4':
            dwNUM += 4;
            break;
        case '5':
            dwNUM += 5;
            break;
        case '6':
            dwNUM += 6;
            break;
        case '7':
            dwNUM += 7;
            break;
        case '8':
            dwNUM += 8;
            break;
        case '9':
            dwNUM += 9;
            break;
        case 'A':
            dwNUM += 10;
            break;
        case 'B':
            dwNUM += 11;
            break;
        case 'C':
            dwNUM += 12;
            break;
        case 'D':
            dwNUM += 13;
            break;
        case 'E':
            dwNUM += 14;
            break;
        case 'F':
            dwNUM += 15;
            break;
        default:
            break;
        }
        s++;
    }

Re: Hex number string to decimal number string (and vica versa)

Ted Ferenc12-May-05 1:18

Ted Ferenc

12-May-05 1:18

Don't forget to uppercase the string or check for lowercase 'a' to 'f'

"An education isn't how much you have committed to memory, or even how much you know. It's being able to differentiate between what you do know and what you don't." - Anatole France

Re: Hex number string to decimal number string (and vica versa)

Priyank Bolia12-May-05 2:05

Priyank Bolia

12-May-05 2:05

yes, you are right, but I just made a small demo to show how to do, what he wants.

http://www.priyank.in/

Re: Hex number string to decimal number string (and vica versa)

Ravi Bhavnani12-May-05 1:34

Ravi Bhavnani

12-May-05 1:34

You don't need the large switch statement.

char *s = "FE34", ch;
double dwNUM = 0;
while (*s != NULL) {
  ch = (char) *s;
  dwNUM *= 16;
  if ((ch > '0') && (ch <= '9'))
     dwNum += (ch - '0');
  else  {
     ch = tolower (ch);
     if ((ch > 'a') && (ch <= 'f'))
        dwNum += (ch - 'a' + 10);
  }
  s++;
}

/ravi

My new year's resolution: 2048 x 1536
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ravib@ravib.com

Re: Hex number string to decimal number string (and vica versa)

Priyank Bolia12-May-05 2:17

Priyank Bolia

12-May-05 2:17

yes, you are right, but I just made a small demo to show how to do, what he wants. Like your demo, which says:

if ((ch > 'a') && (ch <= 'f'))

instead of

if ((ch ><code>=</code> 'a') && (ch <= 'f'))

;)
http://www.priyank.in/

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