public void DisplayError(string msg) { _bgLayer.reset(); _bgLayer.selectGrayPen(255); _bgLayer.drawBar(0, 0, _w, _h); _bgLayer.selectColorPen(0); _bgLayer.drawText(_w / 2, _h / 3, YDisplayLayer.ALIGN.CENTER, "ERROR !"); _bgLayer.drawText(_w / 2, _h * 2 / 3, YDisplayLayer.ALIGN.CENTER, msg); }
/** * <summary> * Draws a filled rectangular bar at a specified position. * <para> * </para> * </summary> * <param name="x1"> * the distance from left of layer to the left border of the rectangle, in pixels * </param> * <param name="y1"> * the distance from top of layer to the top border of the rectangle, in pixels * </param> * <param name="x2"> * the distance from left of layer to the right border of the rectangle, in pixels * </param> * <param name="y2"> * the distance from top of layer to the bottom border of the rectangle, in pixels * </param> * <returns> * <c>0</c> if the call succeeds. * </returns> * <para> * On failure, throws an exception or returns a negative error code. * </para> */ public virtual int drawBar(int x1, int y1, int x2, int y2) { return(_objptr.drawBar(x1, y1, x2, y2)); }