我发给你一些示例类的方法cConsole
:
class cConsole {
private:
//-------------------
int lines;
int max_lines; // Init it with your choise ( 300 )
//-------------------
char* buf;
int buf_size;
//-------------------
int CheckMemory( int size );
void NewLine( int new_lines );
void InternalPrint( char* msg, int size );
public:
HWND hWin;
void Print( char* msg ); // Add text data through this methods
void Print( char* msg, int size );
cConsole( );
~cConsole( );
};
int cConsole::CheckMemory( int size ) {
int rv = 1;
if( size + 16 >= buf_size ) {
int new_buf_size = size + 1024;
char* new_buf = ( char* )realloc( buf, new_buf_size );
if( new_buf != NULL ) {
buf = new_buf;
buf_size = new_buf_size;
} else {
rv = 0;
}
}
return rv;
}
void cConsole::NewLine( int new_lines ) {
int rem_lines = ( new_lines + lines + 1 ) - max_lines;
if( rem_lines <= 0 ) {
lines += new_lines;
} else {
int sel = SendMessage( hWin, EM_LINEINDEX, rem_lines, 0 );
SendMessage( hWin, EM_SETSEL, 0, (LPARAM)sel );
SendMessage( hWin, EM_REPLACESEL, FALSE, (LPARAM)"" );
SendMessage( hWin, WM_VSCROLL, SB_BOTTOM, NULL );
lines = max_lines - 1;
}
}
void cConsole::Print( char* msg ) { InternalPrint( msg, -1 ); }
void cConsole::Print( char* msg, int size ) { if( size < 0 ) size = 0; InternalPrint( msg, size ); }
void cConsole::InternalPrint( char* msg, int size ) {
int s, t = 0;
int new_lines = 0;
char* tb;
// msg only mode
if( size == -1 ) size = 0x7fffffff;
if( msg != NULL && size && CheckMemory( t ) ) {
for( s = 0; msg[ s ] && ( s < size ); s++ ) {
if( msg[ s ] == '\r' ) continue;
if( !CheckMemory( t ) ) break;
if( msg[ s ] == '\n' ) {
++new_lines;
buf[ t++ ] = '\r';
}
buf[ t++ ] = msg[ s ];
}
buf[ t ] = '\0';
}
if( t && msg != NULL ) {
tb = buf;
} else {
++new_lines;
tb = "\r\n";
}
SendMessage( hWin, EM_SETSEL, (WPARAM)-2, (LPARAM)-1 );
SendMessage( hWin, EM_REPLACESEL, FALSE, (LPARAM)tb );
SendMessage( hWin, WM_VSCROLL, SB_BOTTOM, NULL );
if( new_lines ) NewLine( new_lines );
}
建立自己的班级并检查一下!