C++控制台IO..doc

七、滚动和移动　　ScrollConsoleScreenBuffer是实现文本区滚动和移动的API函数。它可以将指定的一块文本区域移动到另一个区域，被移空的那块区域由指定字符填充。函数的原型如下： BOOL ScrollConsoleScreenBuffer(　　HANDLE hConsoleOutput, // 句柄　　CONST SMALL_RECT* lpScrollRectangle, // 要滚动或移动的区域　　CONST SMALL_RECT* lpClipRectangle, // 裁剪区域　　COORD dwDestinationOrigin, // 新的位置　　CONST CHAR_INFO* lpFill // 填充字符); 　　利用这个API函数还可以实现删除指定行的操作。下面来举一个例子，程序如下： #include #include #include HANDLE hOut;void DeleteLine(int row); // 删除一行void MoveText(int x, int y, SMALL_RECT rc); // 移动文本块区域void ClearScreen(void); // 清屏void main(){　hOut = GetStdHandle(STD_OUTPUT_HANDLE); // 获取标准输出设备句柄　WORD att = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_INTENSITY | 　　　　　　　　 BACKGROUND_BLUE ;　// 背景是蓝色，文本颜色是黄色　SetConsoleTextAttribute(hOut, att);　ClearScreen();　printf(\n\nThe soul selects her own society,\n);　printf(Then shuts the door;\n);　printf(On her devine majority;\n);　printf(Obtrude no more.\n\n);　CONSOLE_SCREEN_BUFFER_INFO bInfo;　GetConsoleScreenBufferInfo( hOut, bInfo ); 　COORD endPos = {0, bInfo.dwSize.Y - 1};　SetConsoleCursorPosition(hOut, endPos); // 设置光标位置　SMALL_RECT rc = {0, 2, 40, 5};　_getch();　MoveText(10, 5, rc);　_getch();　DeleteLine(5);　CloseHandle(hOut); // 关闭标准输出设备句柄}void DeleteLine(int row){　SMALL_RECT rcScroll, rcClip;　COORD crDest = {0, row - 1};　CHAR_INFO chFill;　CONSOLE_SCREEN_BUFFER_INFO bInfo;　GetConsoleScreenBufferInfo( hOut, bInfo ); 　rcScroll.Left = 0;　rcScroll.Top = row;　rcScroll.Right = bInfo.dwSize.X - 1;　rcScroll.Bottom = bInfo.dwSize.Y - 1;　rcClip = rcScroll;　chFill.Attributes = bInfo.wAttributes;　chFill.Char.AsciiChar = ;　ScrollConsoleScreenBuffer(hOut, rcScroll, rcClip, crDest, chFill);}void MoveText(int x, int y, SMALL_RECT rc){　COORD crDest = {x, y};　CHAR_INFO chFill;　CONSOLE_SCREEN_BUFFER_INFO bInfo;　GetConsoleScreenBufferInfo( hOut, bInfo ); 　chFill.Attributes = bInfo.wAttributes;　chFill.Char.AsciiChar = ;　ScrollConsoleScreenBuffer(hOut, rc, NULL, crDest, chFill);}void Clea