C# Signature:
[DllImport("user32.dll")]
static extern bool MoveWindow(IntPtr hWnd, int X, int Y, int nWidth,
int nHeight, bool bRepaint);
C++ Signature:
[DllImport("User32.dll")]
static bool MoveWindow(IntPtr handle, int x, int y, int width, int height, bool redraw);
VB.NET
<DllImport("user32.dll")>_
Shared Function MoveWindow(ByVal hWnd As IntPtr, ByVal x As Integer, ByVal y As Integer, ByVal nWidth As Integer, _
ByVal nHeight As Integer, ByVal bRepaint As Boolean) As Boolean
End Function
User-Defined Types:
None.
Notes:
None.
Tips & Tricks:
Please add some!
Sample Code:
C# Code:
class Program
{
internal struct RECT
{
public int left;
public int top;
public int right;
public int bottom;
}
[DllImport("user32.dll", ExactSpelling = true, SetLastError = true)]
internal static extern IntPtr GetForegroundWindow();
[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall, ExactSpelling = true, SetLastError = true)]
internal static extern bool GetWindowRect(IntPtr hWnd, ref RECT rect);
[DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall, ExactSpelling = true, SetLastError = true)]
internal static extern void MoveWindow(IntPtr hwnd, int X, int Y, int nWidth, int nHeight, bool bRepaint);
static void Main(string[] args)
{
IntPtr id;
RECT Rect = new RECT();
Thread.Sleep(2000);
id = GetForegroundWindow();
Random myRandom = new Random();
GetWindowRect(id, ref Rect);
MoveWindow(id, myRandom.Next(1024), myRandom.Next(768), Rect.right - Rect.left, Rect.bottom - Rect.top, true);
}
}
VB code:
Public Declare Auto Function MoveWindow Lib "user32.dll" ( _
ByVal hWnd As IntPtr, _
ByVal X As Int32, _
ByVal Y As Int32, _
ByVal nWidth As Int32, _
ByVal nHeight As Int32, _
ByVal bRepaint As Boolean _
) As Boolean
Private Sub ResizeMe_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles ResizeMe.MouseMove
If e.Button = MouseButtons.Left Then
MoveWindow(Me.Handle, Me.Location.X, Me.Location.Y, (Control.MousePosition.X - (Me.Left)) + 10, (Control.MousePosition.Y - Me.Top) + 10, True)
Me.Refresh()
System.Windows.Forms.Application.DoEvents()
End If
contributed by http://kaleemsoft.com
Alternative Managed API:
Omnicoder's Managed Windows API: http://www.fileden.com/files/2008/4/5/1852663/ManWinAPI.zip
Additional Uses (Contributed by Hayden B):
I always enjoyed how when you typed an incorrect password on a mac the window shakes itself back and forth like it's saying no. Here's a simple piece of code you could use in a login form to do just that.
VB code:
Public Declare Auto Function MoveWindow Lib "user32.dll" ( _
ByVal hWnd As IntPtr, _
ByVal X As Int32, _
ByVal Y As Int32, _
ByVal nWidth As Int32, _
ByVal nHeight As Int32, _
ByVal bRepaint As Boolean _
) As Boolean
Private InitX As Integer
Private LR As String = "L"
Private C As Integer = 0
Private X As Integer = 0
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
InitX = Me.Location.X
X = InitX
C = 0
Timer1.Interval = 1
Timer1.Start()
End Sub
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
C += 1
If X = InitX - 6 Then
LR = "R"
ElseIf X = InitX + 6 Then
LR = "L"
End If
If LR = "L" Then
X -= 2
Else
X += 2
End If
MoveWindow(Me.Handle, X, Me.Location.Y, Me.Width, Me.Height, True)
Me.Refresh()
System.Windows.Forms.Application.DoEvents()
If C = 30 Then
Timer1.Stop()
End If
End Sub
