Rectangle.Contains 方法
定義
多載
Contains(Point) |
判斷指定的點是否包含在這個 Rectangle 結構內。Determines if the specified point is contained within this Rectangle structure. |
Contains(Rectangle) |
判斷由 |
Contains(Int32, Int32) |
判斷指定的點是否包含在這個 Rectangle 結構內。Determines if the specified point is contained within this Rectangle structure. |
Contains(Point)
public:
bool Contains(System::Drawing::Point pt);
public bool Contains (System.Drawing.Point pt);
member this.Contains : System.Drawing.Point -> bool
Public Function Contains (pt As Point) As Boolean
參數
傳回
如果由 pt
表示的點包含在這個 Rectangle 結構中,則這個方法會傳回 true
,否則傳回 false
。This method returns true
if the point represented by pt
is contained within this Rectangle structure; otherwise false
.
備註
包含的矩形必須針對此方法正規化,才能傳回精確的結果。The containing rectangle must be normalized for this method to return accurate results.
適用於
Contains(Rectangle)
public:
bool Contains(System::Drawing::Rectangle rect);
public bool Contains (System.Drawing.Rectangle rect);
member this.Contains : System.Drawing.Rectangle -> bool
Public Function Contains (rect As Rectangle) As Boolean
參數
傳回
如果由 rect
表示的矩形區域完全包含在這個 Rectangle 結構中,則這個方法會傳回 true
,否則傳回 false
。This method returns true
if the rectangular region represented by rect
is entirely contained within this Rectangle structure; otherwise false
.
範例
下列程式碼範例示範 Contains 方法和 SystemPens 類別。The following code example demonstrates the Contains method and the SystemPens class. 此範例是專為搭配 Windows Form 使用所設計。This example is designed for use with a Windows Form. 將此程式碼貼入表單中,其中包含名為的按鈕 Button1
、 DrawFirstRectangle
從表單的函式或 Load 方法呼叫,以及將 Button1_Click
方法與按鈕的事件產生關聯 Click 。Paste this code into a form that contains a button named Button1
, call DrawFirstRectangle
from the form's constructor or Load method, and associate the Button1_Click
method with the button's Click event.
private:
[UIPermission(SecurityAction::Demand, Window=UIPermissionWindow::AllWindows)]
void DrawFirstRectangle()
{
Rectangle rectangle1 = Rectangle(70,70,100,150);
ControlPaint::DrawReversibleFrame( rectangle1, SystemColors::Highlight, FrameStyle::Thick );
}
void Button1_Click( Object^ /*sender*/, EventArgs^ /*e*/ )
{
Rectangle rectangle1 = Rectangle(70,70,100,150);
// Get the bounds of the screen.
Rectangle screenRectangle = Screen::PrimaryScreen->Bounds;
// Check to see if the rectangle is within the bounds of the screen.
if ( screenRectangle.Contains( rectangle1 ) )
{
ControlPaint::DrawReversibleFrame( rectangle1, SystemColors::Highlight, FrameStyle::Thick );
// Call the Offset method to move the rectangle.
rectangle1.Offset( 20, 20 );
// Draw the new, offset rectangle.
ControlPaint::DrawReversibleFrame( rectangle1, SystemColors::Highlight, FrameStyle::Thick );
}
}
Rectangle rectangle1 = new Rectangle(70, 70, 100, 150);
private void DrawFirstRectangle()
{
ControlPaint.DrawReversibleFrame(rectangle1,
SystemColors.Highlight, FrameStyle.Thick);
}
private void Button1_Click(object sender, EventArgs e)
{
// Get the bounds of the screen.
Rectangle screenRectangle = Screen.PrimaryScreen.Bounds;
// Check to see if the rectangle is within the bounds of the screen.
if (screenRectangle.Contains(rectangle1))
// If so, erase the previous rectangle.
{
ControlPaint.DrawReversibleFrame(rectangle1,
SystemColors.Highlight, FrameStyle.Thick);
// Call the Offset method to move the rectangle.
rectangle1.Offset(20, 20);
// Draw the new, offset rectangle.
ControlPaint.DrawReversibleFrame(rectangle1,
SystemColors.Highlight, FrameStyle.Thick);
}
}
Dim rectangle1 As New Rectangle(70, 70, 100, 150)
Private Sub DrawFirstRectangle()
ControlPaint.DrawReversibleFrame(rectangle1, _
SystemColors.Highlight, FrameStyle.Thick)
End Sub
Private Sub Button1_Click(ByVal sender As Object, _
ByVal e As EventArgs) Handles Button1.Click
' Get the bounds of the screen.
Dim screenRectangle As Rectangle = Screen.PrimaryScreen.Bounds
' Check to see if the rectangle is within the bounds of the screen.
If (screenRectangle.Contains(rectangle1)) Then
' If so, erase the previous rectangle.
ControlPaint.DrawReversibleFrame(rectangle1, _
SystemColors.Highlight, FrameStyle.Thick)
' Call the Offset method to move the rectangle.
rectangle1.Offset(20, 20)
' Draw the new, offset rectangle.
ControlPaint.DrawReversibleFrame(rectangle1, _
SystemColors.Highlight, FrameStyle.Thick)
End If
End Sub
備註
包含的矩形必須針對此方法正規化,才能傳回精確的結果。The containing rectangle must be normalized for this method to return accurate results.
適用於
Contains(Int32, Int32)
public:
bool Contains(int x, int y);
public bool Contains (int x, int y);
member this.Contains : int * int -> bool
Public Function Contains (x As Integer, y As Integer) As Boolean
參數
- x
- Int32
要測試的點的 X 座標。The x-coordinate of the point to test.
- y
- Int32
要測試的點的 Y 座標。The y-coordinate of the point to test.
傳回
如果由 x
和 y
定義的點包含在這個 Rectangle 結構中,則這個方法會傳回 true
,否則傳回 false
。This method returns true
if the point defined by x
and y
is contained within this Rectangle structure; otherwise false
.
備註
包含的矩形必須針對此方法正規化,才能傳回精確的結果。The containing rectangle must be normalized for this method to return accurate results.