获取或设置可以进行书写的识别器参考线的不可见书写区域的顶部坐标。
命名空间： System.Windows.Ink
程序集： IAWinFX（在 IAWinFX.dll 中）
语法
声明
Public Property WritingBoxTop As Double
用法
Dim instance As InkRecognizerGuide
Dim value As Double
value = instance.WritingBoxTop
instance.WritingBoxTop = value
public double WritingBoxTop { get; set; }
public:
property double WritingBoxTop {
double get ();
void set (double value);
}
/** @property */
public double get_WritingBoxTop()
/** @property */
public void set_WritingBoxTop(double value)
public function get WritingBoxTop () : double
public function set WritingBoxTop (value : double)
属性值
类型：System.Double
可以进行书写的 InkRecognizerGuide 的不可见书写区域的顶部坐标。
备注
书写框为在绘制框之外进行书写的用户提供了一个误差范围。使用 DrawnBoxTop、DrawnBoxLeft、DrawnBoxBottom 和 DrawnBoxRight 属性可以设置绘制框。
如果尝试将 WritingBoxTop 属性设置为小于 AnalysisRegion.MinXY 或者大于 AnalysisRegion.MaxXY 的值，则该属性引发 ArgumentOutOfRangeException。
示例
下面的示例同时设置 InkRecognizerGuide 中的所有值。
Dim guideBoxTop As Double = 0
Dim guideBoxBottom As Double = 50
Dim guideBoxLeft As Double = 0
Dim guideBoxRight As Double = 600
Dim WRITINGBOXMARGIN As Integer = 10
' Find the midline of the guide box.
Dim midline As Double = (guideBoxBottom - guideBoxTop) / 2 + guideBoxTop
theGuide.Rows = 1
theGuide.Columns = 0
theGuide.Midline = midline
theGuide.WritingBoxLeft = guideBoxLeft - WRITINGBOXMARGIN
theGuide.WritingBoxTop = guideBoxTop - WRITINGBOXMARGIN
theGuide.WritingBoxRight = guideBoxRight + WRITINGBOXMARGIN
theGuide.WritingBoxBottom = guideBoxBottom + WRITINGBOXMARGIN
theGuide.DrawnBoxLeft = guideBoxLeft
theGuide.DrawnBoxTop = guideBoxTop
theGuide.DrawnBoxRight = guideBoxRight
theGuide.DrawnBoxBottom = guideBoxBottom
double guideBoxTop = 0;
double guideBoxBottom = 50;
double guideBoxLeft = 0;
double guideBoxRight = 600;
const int WRITINGBOXMARGIN = 10;
// Find the midline of the guide box.
double midline = (guideBoxBottom - guideBoxTop) / 2 + guideBoxTop;
theGuide.Rows = 1;
theGuide.Columns = 0;
theGuide.Midline = midline;
theGuide.WritingBoxLeft = guideBoxLeft - WRITINGBOXMARGIN;
theGuide.WritingBoxTop = guideBoxTop - WRITINGBOXMARGIN;
theGuide.WritingBoxRight = guideBoxRight + WRITINGBOXMARGIN;
theGuide.WritingBoxBottom = guideBoxBottom + WRITINGBOXMARGIN;
theGuide.DrawnBoxLeft = guideBoxLeft;
theGuide.DrawnBoxTop = guideBoxTop;
theGuide.DrawnBoxRight = guideBoxRight;
theGuide.DrawnBoxBottom = guideBoxBottom;
平台
Windows Vista
.NET Framework 和 .NET Compact Framework 并不是对每个平台的所有版本都提供支持。有关支持的版本的列表，请参见.NET Framework 系统要求。
版本信息
.NET Framework
受以下版本支持：3.0