Translate Code from Vb To C#

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C#

VB

C#4.0

Hi ,
i want to know how can i change code from vb to c#?
here is my code:

Public Declare Function SetCapture Lib "user32.dll" (ByVal hWnd As Long) As Long

Public Declare Function ReleaseCapture Lib "user32.dll" () As Long
Private Sub Form1_Load()
    Dim retval As Long  ' return value
    retval = SetCapture(Picture1.hWnd)
    Picture1.ScaleMode = 3
End Sub
Private Sub Picture1_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)  

    Static oldX As Long, oldY As Long  ' the previous mouse coordinates
    Picture1.Line (Picture1.ScaleWidth / 2, Picture1.ScaleHeight / 2)-(oldX, oldY), _
        Picture1.BackColor
    Picture1.Line (Picture1.ScaleWidth / 2, Picture1.ScaleHeight / 2)-(X, Y)
     oldX = X: oldY = Y

End Sub
Private Sub Picture1_Click()

      Dim retval As Long 
    retval = ReleaseCapture()

End Sub

i cant translate these code to c# like:

ScaleMode

Picture1.Line

Picture1.ScaleWidth / 2

any idea for translate these codes..?
tnx
GL