Resize 3rd Party Application

[HanneSThEGreaT]

TT(n), great mind think alike

Well, there are actually 3 ways to approach this :
1) MoveWindow - which is basically the easiest, and which I'll show
2) SendMessage - use the WM_SIZE constant
3) SetWindowsPos - where you could supply starting X and Y values, as well as Width and Height, and some flags to make the window un - resizable, or always on top etc.

Here is an example ( which works ) using MoveWindow :

'Import the System.Runtime.InterOpServices Namespace
    <DllImport("user32.dll", EntryPoint:="MoveWindow", CharSet:=CharSet.Auto)> _
    Public Shared Function MoveWindow(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
    End Function

    Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        Dim NoteProc() As Process = Process.GetProcessesByName("notepad") 'Get Notepad's handle

        MoveWindow(NoteProc(0).MainWindowHandle, 10, 10, 200, 300, True) 'Resize
    End Sub

Easy as pie, isn't it ¿