本文整理汇总了C++中CStr::GetBufferSetLength方法的典型用法代码示例。如果您正苦于以下问题：C++ CStr::GetBufferSetLength方法的具体用法？C++ CStr::GetBufferSetLength怎么用？C++ CStr::GetBufferSetLength使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CStr的用法示例。
在下文中一共展示了CStr::GetBufferSetLength方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: InternetOpen
//.........这里部分代码省略.........
{
if ( _ttol( status ) != 200 )
{
rc = _ttol( status );
}
}
}
}
if ( rc == 0 )
{
fileSize = 0;
BOOL more = InternetQueryDataAvailable( file, &blockSize, 0, 0 );
tmpStr = (char*)malloc(blockSize+1);
while ( rc == 0 && more && blockSize > 0 && tmpStr != NULL )
{
int stat = InternetReadFile( file, (void*)(tmpStr+fileSize), blockSize, &readSize );
if ( stat == 0 )
{
int error = GetLastError();
rc = -5;
}
else
{
tmpStr[fileSize+readSize] = '\0';
fileSize += readSize;
more = InternetQueryDataAvailable( file, &blockSize, 0, 0 );
if ( more && blockSize > 0 )
{
if ( fileSize + blockSize > 256 * 1024 )
{
// Too big
rc = -3;
}
else
{
void *movedStr = realloc( tmpStr, fileSize+blockSize+1 );
if ( movedStr == NULL )
{
more = FALSE;
rc = -4;
}
else
tmpStr = (char*)movedStr;
}
}
}
}
}
if ( rc == 0 )
{
bufSize = (fileSize+1)*sizeof(TCHAR);
buffer = (char*)content.GetBufferSetLength( fileSize+1 );
if ( buffer == NULL )
{
rc = -4;
}
}
if ( rc == 0 )
{
tmpStr[fileSize] = '\0';
if ( cp == CP_ACP ) // Default: Device's encoding
{
// Copy first few lines
char scanText[256];
strncpy( scanText, tmpStr, 255 );
scanText[255] = '\0';
_strlwr( scanText );
// Unicode?
if ( strstr( scanText, "utf8" )
|| strstr( scanText, "utf-8" )
)
{
cp = CP_UTF8;
}
if ( strstr( scanText, "iso-8835-1" ) )
{
cp = 1252;
}
}
if ( cp != CP_UNICODE )
MultiByteToWideChar( cp, 0, tmpStr, fileSize+1, (LPTSTR)buffer, bufSize );
else
strcpy( buffer, tmpStr );
}
if ( file != NULL ) InternetCloseHandle( file );
if ( web != NULL ) InternetCloseHandle( web );
if ( buffer != NULL ) content.ReleaseBuffer();
if ( tmpStr != NULL ) free(tmpStr);
return rc;
}示例2: if
int
CIniFile::ReadFile( LPCTSTR filename, CStr &content, int size, int cp )
{
HANDLE file = NULL;
char *buffer = NULL;
char *tmpStr = NULL;
ULONG fileSize, readSize;
ULONG bufSize;
BOOL rc = 0, com;
int timeout;
if ( wcsnicmp( filename, L"COM", 3 ) == 0 && filename[wcslen(filename)-1] == ':' )
{
file = CreateFile( filename, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL );
if ( file != INVALID_HANDLE_VALUE )
{
timeout = SetComPort( filename, file );
}
com = TRUE;
}
else
{
CStr fileWithPath;
fileWithPath = filename;
if ( CurrentInterpreter != NULL && ( fileWithPath.GetLength() < 2 || ( fileWithPath.GetAt(0) != '\\' && fileWithPath.GetAt(1) != ':' ) ) )
{
int len = CurrentInterpreter->ScriptFile.ReverseFind('\\');
if ( len == -1 )
fileWithPath = L"\\" + fileWithPath;
else
fileWithPath = CurrentInterpreter->ScriptFile.Left( len+1 ) + fileWithPath;
}
file = CreateFile( fileWithPath, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL );
com = FALSE;
}
if ( file == INVALID_HANDLE_VALUE )
{
int error = GetLastError();
rc = -2;
}
if ( rc == 0 )
{
if ( size <= 0 )
{
fileSize = GetFileSize( file, NULL );
}
else
{
fileSize = size;
}
if ( fileSize > 1024 * 1024 || fileSize == -1 )
{
// Too big
rc = -3;
}
}
if ( rc == 0 )
{
bufSize = (fileSize+1)*sizeof(TCHAR);
buffer = (char*)content.GetBufferSetLength( bufSize );
if ( buffer == NULL ) rc = -4;
}
if ( rc == 0 )
{
tmpStr = new char[fileSize+2]; // if it's unicode, two binary zeroes are required at the end
if ( tmpStr == NULL ) rc = -4;
}
if ( rc == 0 )
{
if ( ! com )
{
int stat = ::ReadFile( file, (void*)tmpStr, fileSize, &readSize, NULL );
if ( stat == 0 )
{
int error = GetLastError();
rc = -5;
}
}
else
{
comPort = &file;
comTargetSize = fileSize+1;
comTargetBuffer = tmpStr;
DWORD dwThreadID;
HANDLE readThread = CreateThread( NULL, 0, PortReadThread, 0, 0, &dwThreadID );
if ( readThread != NULL )
{
WaitForSingleObject( readThread, timeout );
TerminateThread( readThread, 0 );
CloseHandle( readThread );
SetCommMask( file, 0 );
readSize = comReadSize;
//.........这里部分代码省略.........