通用曲线控件的设计.PDF

软件技术 O. I. Automation 2006 25 2 Software Technique2006, Vol. 25, No. 2 100615762006 1 2 1 1. 100083 2. 100083 ActiveX Windows CDC ActiveX TP311.11 A Design of Common Curve Control 1 2 1 FU Xing-wang LIU Wang-kai SHEN Wei-qun (1. School of Automation Science Electrical Engineering, Beihang University, Beijing 100083, China; 2. School of Aeronautics Science and Engineering, Beihang University, Beijing 100083, China) Abstract: The ActiveX technology was adopted to develop the common curve control. The multi-interface functions could be realized through adding curve information, receiving data and automatic management after stopping drawing. The curve sample period was set to define the control attributes. At first, the real coordinates was transformed to screen coordinates by curve control; then, the coordinates were defined; at last all curves were drawn by using member functions of CDC. Keywords: ActiveX Control; Interface; Real time drawing 1 { CURVE_INFO info; Info.CurName = CurName; // Info.VarIndex = CurIndx; // m_CurArray.Add(info);} (2) 2 2 ActiveX CArrayfloat* float* m_ValueArray ActiveX COM IDispatch Act