Question

我一直试图在C＃中运行以下几个小时的VB代码。我一直在CreateStroke（）调用上得到Value does not fall within the expected range.异常。 此外，here也是带有C ++版本的Microsoft文档。

Option Explicit
Dim theInkCollector As InkCollector

Private Sub Form_Load()
    Set theInkCollector = New InkCollector
    theInkCollector.hWnd = Me.hWnd
    theInkCollector.Enabled = True

    //Create a set of three points, stored as x1, y1, x2, y2, x3, y3
    //in an array of six Long elements, starting at index 0.
    Dim ptStrokePoints(5) As Long
    ptStrokePoints(0) = 200
    ptStrokePoints(1) = 200
    ptStrokePoints(2) = 400
    ptStrokePoints(3) = 600
    ptStrokePoints(4) = 900
    ptStrokePoints(5) = 300

    //The description value is an unused placeholder.
    Dim theDescription As Variant 
    Dim theStroke As IInkStrokeDisp
  Set theStroke = theInkCollector.Ink.CreateStroke(ptStrokePoints, theDescription)
End Sub

这就是我所拥有的：

MSINKAUTLib.InkCollector collector = new MSINKAUTLib.InkCollector();
collector.hWnd = (int)(this.Handle);
collector.Enabled = true;

long[] pts = new long[6];
pts[0] = 200;
pts[1] = 200;
pts[2] = 400;
pts[3] = 600;
pts[4] = 900;
pts[5] = 300;

collector.Ink.CreateStroke(pts, new object());

Answer 1

这看起来像文档中的以下错误：

E_INVALIDARG - 无效的VARIANT类型（仅支持VT_ARRAY | VT_I4）。

C＃long类型是64位整数，因此您传递的是VT_ARRAY | VT_I8（不是VT_I4）。

将您的pts声明更改为：

int[] pts = new int[6];

你应该好好去。（int是C＃32位整数类型。）

帮我将以下VB / C ++代码转换为C＃

1 个答案: