C / C++ / MFC

tanarnelinistit wrote:

how can i remove any new line or carriage return from the...begining of it?

void TrimLeft( char *str, const char ch )
{
    char *pStr = str;
 
    // locate first non-matching character
    while (ch == *pStr)
        pStr++;
 
    strcpy(str, pStr);
}

char buffer[17] = {0};
InitializeBuffer(buffer);	// put some value into it
CString strBuffer(buffer);
strBuffer.TrimLeft();
strBuffer.TrimRight();
memset(buffer, 0, 17);
strncpy(buffer, strBuffer, 16);

char buffer[17] = {0};
InitializeBuffer(buffer);	// put some value into it
std::string sBuffer(buffer);
int start_pos = sBuffer.find_first_not_of("\t\n\r ");
int end_pos = sBuffer.find_last_not_of("\t\n\r ");
if (start_pos == npos)
{
	start_pos = 0;
}
if (end_pos = npos)
{
	end_pos = strlen(buffer) - 1;
}
std::string sTemp = sBuffer.substr(start_pos, end_pos - start_pos + 1);
memset(buffer, 0, 17);
strncpy(buffer, sTemp.c_str(), 16);

int FindFirstNotOf(const char* chars, size_t chars_size, const char* str, size_t str_size)
{
	int ret = -1;
	for (int i = 0; i < str_size; ++i)
	{
		bool bFound = false;
		for (int j = 0; j < chars_size; ++j)
		{
			if (str[i] == chars[j])
			{
				bFound = true;
				break;
			}
		}

		if (bFound == false)
		{
			ret = i;
			break;
		}
	}
	
	return ret;
}

int FindLastNotOf(const char* chars, size_t chars_size, const char* str, size_t str_size)
{
	int ret = -1;
	for (int i = str_size - 1; i >= 0; --i)
	{
		bool bFound = false;
		for (int j = 0; j < chars_size; ++j)
		{
			if (str[i] == chars[j])
			{
				bFound = true;
				break;
			}
		}

		if (bFound == false)
		{
			ret = i;
			break;
		}
	}
	
	return ret;
}

char buffer[17] = {0};
InitializeBuffer(buffer);	// put some value in there
char chars[5] = "\t\r\n ";
int start_pos = FindFirstNotOf(chars, 5, buffer, 17);
int end_pos = FindLastNotOf(chars, 5, buffer, 17);

if (start_pos == -1)
{
	start_pos = 0;
}

if (end_pos == -1)
{
	end_pos = strlen(buffer) - 1;
}

char newBuffer[17] = {0};
strncpy(newBuffer, &buffer[start_pos], end_pos - start_pos);
memset(buffer, 0, 17);
strncpy(buffer, newBuffer, 16);

void    TrimRight( LPTSTR cpString, 
                LPCTSTR cpTrimWhat = _T( " " ) )        // Trim Trailing Characters From String
{
    size_t  stStrLen = ::_tcslen( cpString );           // Get String Length
 
    if( !stStrLen )                                     // If No String Length
    {
        return;                                         // Stop Here
    }
    LPTSTR  cpCursor = ( cpString + ( stStrLen - 1 ) ); // Start At End Of String (Not The NUL Terminator)
    size_t  stCount = 0;
 
    while( ( stCount < stStrLen) &&                     // While String Characters Available
            ( ::_tcschr( cpTrimWhat, *cpCursor ) ) )    // Look For Target To Remove
    {
        ++stCount;                                      // Increment Count While Found
        --cpCursor;                                     // Decrement Cursor Location
    }
    if( stCount )                                       // If Trimming Characters Found
    {
        ++cpCursor;                                     // Advance Cursor Back To Last Trailing Character
        *cpCursor = _T( '\0' );                         // Terminate The String Right There
    }
    return;                                             // Done!
}

TCHAR   caTest[ 32 ];

strcpy( caTest, _T( "abc\t   " ) );
TrimRight( caTest );
strcpy( caTest, _T( "abc\t   " ) );
TrimRight( caTest, "\t " );

<br />
//include header file<br />
CMain* m_Main=(CMain*)GetParent();<br />
CString str;<br />
m_Main->m_Edit1.GetWindowText(str);<br />

<br />
m_Edit2.SetWindowText(str);

peterchen wrote:

Multiplexed I/O queries multiple I/O channels, and returns if an communication occurs on one channel. The typical use is a Server process that has to respond to multiple connections. The call is blocking, so you can't do anything else (in this thread).

(GetDlgItem(IDC_MY_BUTTON))->SetFocus();

this->SetDefID(IDC_MY_BUTTON);

this->SetDefID(IDC_MY_BUTTON);

break; wrote

CEdit field, so when the user press enter on

if(pMsg->message == WM_KEYDOWN && (VK_ESCAPE == pMsg->wParam || VK_RETURN == pMsg->wParam))
		//if(AfxMessageBox("Do you want to exit",MB_YESNO)==IDNO)
			pMsg->wParam=VK_SEPARATOR;

Somethings seem HARD to do, until we know how to do them.
_AnShUmAn_

SetDefID(IDC_ADD);	

DWORD dwBytesRead = 0, dwBytesWritten;
char szBuffer[101];
static HANDLE hFileHandle = INVALID_HANDLE_VALUE;

serial.Read(szBuffer,sizeof(szBuffer)-1,&dwBytesRead);
if (dwBytesRead > 0)
{
szBuffer[dwBytesRead] = '\0';
hFileHandle = CreateFile(szLogFileName, GENERIC_WRITE | GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_WRITE_THROUGH, NULL);
SetFilePointer( hFileHandle, 0, NULL, FILE_END);
WriteFile(hFileHandle, (LPCVOID) szBuffer, dwBytesRead+1, &dwBytesWritten, NULL);
printf("%s", szBuffer);
fclose(out);

// Check if EOF (CTRL+'[') has been specified
if (strchr(szBuffer,EOF_Char))
fContinue = false;

}