Control.RectangleToScreen(Rectangle) Control.RectangleToScreen(Rectangle) Control.RectangleToScreen(Rectangle) Control.RectangleToScreen(Rectangle) Method

정의

지정된 클라이언트 사각형의 크기와 위치를 화면 좌표로 계산합니다.Computes the size and location of the specified client rectangle in screen coordinates.

public:
 System::Drawing::Rectangle RectangleToScreen(System::Drawing::Rectangle r);
public System.Drawing.Rectangle RectangleToScreen (System.Drawing.Rectangle r);
member this.RectangleToScreen : System.Drawing.Rectangle -> System.Drawing.Rectangle
Public Function RectangleToScreen (r As Rectangle) As Rectangle

매개 변수

r
Rectangle Rectangle Rectangle Rectangle

변환할 클라이언트 좌표 Rectangle입니다.The client coordinate Rectangle to convert.

반환

변환된 RectangleRectangle를 화면 좌표로 나타내는 p입니다.A Rectangle that represents the converted Rectangle, p, in screen coordinates.

예제

다음 코드 예제를 사용 하는 방법에 설명 합니다 BackColor, RectangleToScreen, PointToScreen, MouseButtons, ControlPaint.DrawReversibleFrame, 및 Rectangle.IntersectsWith 멤버입니다.The following code example demonstrates how to use the BackColor, RectangleToScreen, PointToScreen, MouseButtons, ControlPaint.DrawReversibleFrame, and Rectangle.IntersectsWith members. 예제를 실행 하려면 이라는 폼에 다음 코드를 붙여 넣습니다 Form1 여러 컨트롤을 포함 합니다.To run the example, paste the following code in a form called Form1 containing several controls. 이 예제에서는 합니다 MouseDown, MouseMove, 및 MouseUp 예제에 정의 된 이벤트 처리기에 연결 된 이벤트입니다.This example requires that the MouseDown, MouseMove, and MouseUp events are connected to the event handlers defined in the example.

private:
   // The following three methods will draw a rectangle and allow 
   // the user to use the mouse to resize the rectangle.  If the 
   // rectangle intersects a control's client rectangle, the 
   // control's color will change.
   bool isDrag;
   Rectangle theRectangle;
   Point startPoint;
   void Form1_MouseDown( Object^ sender, System::Windows::Forms::MouseEventArgs^ e )
   {
      
      // Set the isDrag variable to true and get the starting point 
      // by using the PointToScreen method to convert form 
      // coordinates to screen coordinates.
      if ( e->Button == ::MouseButtons::Left )
      {
         isDrag = true;
      }

      Control^ control = dynamic_cast<Control^>(sender);
      
      // Calculate the startPoint by using the PointToScreen 
      // method.
      startPoint = control->PointToScreen( Point(e->X,e->Y) );
   }

   void Form1_MouseMove( Object^ /*sender*/, System::Windows::Forms::MouseEventArgs^ e )
   {
      
      // If the mouse is being dragged, 
      // undraw and redraw the rectangle as the mouse moves.
      if ( isDrag )
      {
         ControlPaint::DrawReversibleFrame( theRectangle, this->BackColor, FrameStyle::Dashed );
         
         // Calculate the endpoint and dimensions for the new 
         // rectangle, again using the PointToScreen method.
         Point endPoint = this->PointToScreen( Point(e->X,e->Y) );
         int width = endPoint.X - startPoint.X;
         int height = endPoint.Y - startPoint.Y;
         theRectangle = Rectangle(startPoint.X,startPoint.Y,width,height);
         
         // Draw the new rectangle by calling DrawReversibleFrame
         // again.  
         ControlPaint::DrawReversibleFrame( theRectangle, this->BackColor, FrameStyle::Dashed );
      }
   }

   void Form1_MouseUp( Object^ /*sender*/, System::Windows::Forms::MouseEventArgs^ /*e*/ )
   {
      
      // If the MouseUp event occurs, the user is not dragging.
      isDrag = false;
      
      // Draw the rectangle to be evaluated. Set a dashed frame style 
      // using the FrameStyle enumeration.
      ControlPaint::DrawReversibleFrame( theRectangle, this->BackColor, FrameStyle::Dashed );
      
      // Find out which controls intersect the rectangle and 
      // change their color. The method uses the RectangleToScreen  
      // method to convert the Control's client coordinates 
      // to screen coordinates.
      Rectangle controlRectangle;
      for ( int i = 0; i < Controls->Count; i++ )
      {
         controlRectangle = Controls[ i ]->RectangleToScreen( Controls[ i ]->ClientRectangle );
         if ( controlRectangle.IntersectsWith( theRectangle ) )
         {
            Controls[ i ]->BackColor = Color::BurlyWood;
         }

      }
      
      // Reset the rectangle.
      theRectangle = Rectangle(0,0,0,0);
   }
  // The following three methods will draw a rectangle and allow 
  // the user to use the mouse to resize the rectangle.  If the 
  // rectangle intersects a control's client rectangle, the 
  // control's color will change.

  bool isDrag = false;
  Rectangle theRectangle = new Rectangle(new Point(0, 0), new Size(0, 0));
  Point startPoint;

  private void Form1_MouseDown(object sender, 
System.Windows.Forms.MouseEventArgs e)
  {

      // Set the isDrag variable to true and get the starting point 
      // by using the PointToScreen method to convert form 
      // coordinates to screen coordinates.
      if (e.Button==MouseButtons.Left)
      {
          isDrag = true;
      }

      Control control = (Control) sender;

      // Calculate the startPoint by using the PointToScreen 
      // method.
      startPoint = control.PointToScreen(new Point(e.X, e.Y));
  }

  private void Form1_MouseMove(object sender, 
System.Windows.Forms.MouseEventArgs e)
  {

      // If the mouse is being dragged, 
      // undraw and redraw the rectangle as the mouse moves.
      if (isDrag)

          // Hide the previous rectangle by calling the 
          // DrawReversibleFrame method with the same parameters.
      {
          ControlPaint.DrawReversibleFrame(theRectangle, 
		this.BackColor, FrameStyle.Dashed);

          // Calculate the endpoint and dimensions for the new 
          // rectangle, again using the PointToScreen method.
          Point endPoint = ((Control) sender).PointToScreen(new Point(e.X, e.Y));

          int width = endPoint.X-startPoint.X;
          int height = endPoint.Y-startPoint.Y;
          theRectangle = new Rectangle(startPoint.X, 
		startPoint.Y, width, height);

          // Draw the new rectangle by calling DrawReversibleFrame
          // again.  
          ControlPaint.DrawReversibleFrame(theRectangle, 
		this.BackColor, FrameStyle.Dashed);
      }
  }

  private void Form1_MouseUp(object sender, 
         System.Windows.Forms.MouseEventArgs e)
  {
      // If the MouseUp event occurs, the user is not dragging.
      isDrag = false;

      // Draw the rectangle to be evaluated. Set a dashed frame style 
      // using the FrameStyle enumeration.
      ControlPaint.DrawReversibleFrame(theRectangle, 
          this.BackColor, FrameStyle.Dashed);

      // Find out which controls intersect the rectangle and 
      // change their color. The method uses the RectangleToScreen  
      // method to convert the Control's client coordinates 
      // to screen coordinates.
      Rectangle controlRectangle;
      for(int i = 0; i < Controls.Count; i++)
      {
          controlRectangle = Controls[i].RectangleToScreen
		(Controls[i].ClientRectangle);
          if (controlRectangle.IntersectsWith(theRectangle))
          {
              Controls[i].BackColor = Color.BurlyWood;
          }
      }

      // Reset the rectangle.
      theRectangle = new Rectangle(0, 0, 0, 0);
  }
' The following three methods will draw a rectangle and allow 
' the user to use the mouse to resize the rectangle.  If the 
' rectangle intersects a control's client rectangle, the 
' control's color will change.

Dim isDrag As Boolean = False
Dim theRectangle As New rectangle(New Point(0, 0), New Size(0, 0))
Dim startPoint As Point

Private Sub Form1_MouseDown(ByVal sender As Object, ByVal e As _
    System.Windows.Forms.MouseEventArgs) Handles MyBase.MouseDown

    ' Set the isDrag variable to true and get the starting point 
    ' by using the PointToScreen method to convert form coordinates to
    ' screen coordinates.
    If (e.Button = MouseButtons.Left) Then
        isDrag = True
    End If

    Dim control As Control = CType(sender, Control)

    ' Calculate the startPoint by using the PointToScreen 
    ' method.
    startPoint = control.PointToScreen(New Point(e.X, e.Y))
End Sub

Private Sub Form1_MouseMove(ByVal sender As Object, ByVal e As _
System.Windows.Forms.MouseEventArgs) Handles MyBase.MouseMove

    ' If the mouse is being dragged, undraw and redraw the rectangle
    ' as the mouse moves.
    If (isDrag) Then

        ' Hide the previous rectangle by calling the DrawReversibleFrame 
        ' method with the same parameters.
        ControlPaint.DrawReversibleFrame(theRectangle, Me.BackColor, _
            FrameStyle.Dashed)

        ' Calculate the endpoint and dimensions for the new rectangle, 
        ' again using the PointToScreen method.
        Dim endPoint As Point = CType(sender, Control).PointToScreen(New Point(e.X, e.Y))
        Dim width As Integer = endPoint.X - startPoint.X
        Dim height As Integer = endPoint.Y - startPoint.Y
        theRectangle = New Rectangle(startPoint.X, startPoint.Y, _
            width, height)

        ' Draw the new rectangle by calling DrawReversibleFrame again.  
        ControlPaint.DrawReversibleFrame(theRectangle, Me.BackColor, _
             FrameStyle.Dashed)
    End If
End Sub

Private Sub Form1_MouseUp(ByVal sender As Object, ByVal e As _
System.Windows.Forms.MouseEventArgs) Handles MyBase.MouseUp

    ' If the MouseUp event occurs, the user is not dragging.
    isDrag = False

    ' Draw the rectangle to be evaluated. Set a dashed frame style 
    ' using the FrameStyle enumeration.
    ControlPaint.DrawReversibleFrame(theRectangle, Me.BackColor, _
        FrameStyle.Dashed)

    ' Find out which controls intersect the rectangle and change their color.
    ' The method uses the RectangleToScreen method to convert the 
    ' Control's client coordinates to screen coordinates.
    Dim i As Integer
    Dim controlRectangle As Rectangle
    For i = 0 To Controls.Count - 1
        controlRectangle = Controls(i).RectangleToScreen _
            (Controls(i).ClientRectangle)
        If controlRectangle.IntersectsWith(theRectangle) Then
            Controls(i).BackColor = Color.BurlyWood
        End If
    Next

    ' Reset the rectangle.
    theRectangle = New Rectangle(0, 0, 0, 0)
End Sub

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