Resize 3rd Party Application

[HanneSThEGreaT]

To Minimize an external application, you simply need to use the ShowWindow API. Have a look at this example :

Imports System.Runtime.InteropServices 'used with APIs
Public Class Form1
    Private Const SW_SHOWMINIMIZED As Int32 = 2 'Minimize constant

    <DllImport("user32.dll", EntryPoint:="ShowWindow", CharSet:=CharSet.Auto)> _
    Private Shared Function ShowWindow(ByVal hwnd As Int32, ByVal nCmdShow As Int32) As Int32
    End Function 'ShowWindow API

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim NoteProc() As Process = Process.GetProcessesByName("notepad") 'Get Notepad's handle
        If NoteProc.Length > 0 Then ShowWindow(NoteProc(0).MainWindowHandle, SW_SHOWMINIMIZED) 'Minimize
    End Sub

End Class

So, all you'd need to do is to replace Notepad with the EXE name of your external application.

To Maximize an external window, you can follow the exact same method as outlined above; obviously, you'd need to use the SW_SHOWMAXIMIZED constant, and optionally, you could use the SetForegroundWindow API to bring the external application to the front.

Try this part first, then, we can look at resizing external windows

I hope my post was useful