Renderer.InkSpaceToPixel 方法 (Graphics, Point%)

發行項
10/29/2008

藉由對轉換使用 Graphics (英文) 物件，將以筆墨空間座標表示的位置轉換成以像素空間表示的位置。

命名空間： Microsoft.Ink
組件： Microsoft.Ink (在 Microsoft.Ink.dll 中)

語法

'宣告
Public Sub InkSpaceToPixel ( _
    g As Graphics, _
    ByRef pt As Point _
)
'用途
Dim instance As Renderer
Dim g As Graphics
Dim pt As Point

instance.InkSpaceToPixel(g, pt)

public void InkSpaceToPixel(
    Graphics g,
    ref Point pt
)

public:
void InkSpaceToPixel(
    Graphics^ g, 
    Point% pt
)

public void InkSpaceToPixel(
    Graphics g,
    /** @ref */Point pt
)

public function InkSpaceToPixel(
    g : Graphics, 
    pt : Point
)

參數

g
型別：System.Drawing.Graphics
用於轉換的 Graphics (英文) 物件。通常這是來自事件引數或 System.Windows.Forms.Control.CreateGraphics (英文) 方法。

pt
型別：System.Drawing.Point%
要轉換成像素位置的點。

備註

InkSpaceToPixel 方法會套用 Renderer 物件的物件轉換，套用檢視轉換，然後將 HIMETRIC 單位轉換為像素單位。

範例

在這個範例中，會取得 Ink 物件的週框方塊並決定週框方塊的中心點，然後將中心點轉換成像素座標，再使用 Graphics (英文) 物件繪製紅色小圓圈。

' get the ink bounds (ink space units)
Dim inkBounds As Rectangle = mInkOverlay.Ink.GetBoundingBox()
' create a Point in the center of the ink bounds (ink space units)
Dim centerPt As Point = _
       New Point(inkBounds.X + (inkBounds.Width / 2), _
                 inkBounds.Y + (inkBounds.Height / 2))

Using g As Graphics = mInkOverlay.AttachedControl.CreateGraphics()
    ' convert to pixel space
    mInkOverlay.Renderer.InkSpaceToPixel(g, centerPt)
    ' draw a small circle
    g.DrawEllipse(Pens.Red, centerPt.X - 5, centerPt.Y - 5, 10, 10)
End Using

// get the ink bounds (ink space units)
Rectangle inkBounds = mInkOverlay.Ink.GetBoundingBox();
// create a Point in the center of the ink bounds (ink space units)
Point centerPt = 
    new Point(inkBounds.X + (inkBounds.Width / 2), 
              inkBounds.Y + (inkBounds.Height / 2));

using (Graphics g = mInkOverlay.AttachedControl.CreateGraphics())
{
    // convert to pixel space
    mInkOverlay.Renderer.InkSpaceToPixel(g, ref centerPt);
    // draw a small circle
    g.DrawEllipse(Pens.Red, centerPt.X - 5, centerPt.Y - 5, 10, 10);
}