C / C++ / MFC

tom groezer wrote:

How do u pass a Cstring into a function that accepts LPSTR?

#include <atlconv.h>
 
USES_CONVERSION;
 
CString csSomeString = _T( "Nibu" );
LPSTR lpsz = W2A( csSomeString );

CString csSomeStr = _T( "Nibu" );
LPSTR lpsz = csSomeStr.GetBuffer( 0 );

// On exit
csSomeStr.ReleaseBuffer();

tom groezer wrote:

How do u pass a Cstring into a function that accepts LPSTR?

void fillBuffer(LPSTR lpszBuffer, INT nBufferSize);
void myFunction()
{
  const int nSize = 10;
  CString myString;
  
  fillBuffer( myString.GetBuffer(nSize), nSize);
  myString.ReleaseBuffer();
}

CString strTemp;

(LPCTSTR)strTemp;

Paresh Chitte wrote:

Please look at CString::operator LPCTSTR

//In .h
char m_cName [20];

//In .cpp
LPTSTR CMyClass::TransformTextFormat (const CString szString)
{	for (int i = 0; i < 20; i++)
		m_cName[i] = NULL;
	for (int j = 0; j < szString.GetLength (); j++)
		m_cName[j] = szString[j];

	return &m_cName[0];
}

Nelek wrote:

If the char m_cName is set to 100, would it then works with longer names? or still have problems with the length?

Nelek wrote:

Anyway... If the char m_cName is set to 100, would it then works with longer names? or still have problems with the length?

Nelek wrote:

//In .hchar
m_cName [20];
//In .cpp
LPTSTR CMyClass::TransformTextFormat (const CString szString)
{
  for (int i = 0; i < 20; i++)
    m_cName[i] = NULL;
  for (int j = 0; j < szString.GetLength (); j++)
    m_cName[j] = szString[j];
  return &m_cName[0];
 }

Nelek wrote:

LPTSTR CMyClass::TransformTextFormat (const CString szString)

Nelek wrote:

an MFC function that required a LPCSTR as parameter. I tried with CStrings, with &strings, with CString* and everything I thought in that moment. No one worked

CString strTemp;
(LPCTSTR)strTemp;

CString sMyString("1234567890");
ThisFunctionNeedsLPSTR((LPSTR)(LPCTSTR)sMyString);