PS-Commands/NET/Dll-Import.txt

### [System.IconExtractor]

$dll_import = @"
using System;
using System.Drawing;
using System.Runtime.InteropServices;
namespace System
{
public class IconExtractor
{
public static Icon Extract(string file, int number, bool largeIcon)
{
IntPtr large;
IntPtr small;
ExtractIconEx(file, number, out large, out small, 1);
try
{
return Icon.FromHandle(largeIcon ? large : small);
}
catch
{
return null;
}
}
[DllImport("Shell32.dll", EntryPoint = "ExtractIconExW", CharSet = CharSet.Unicode, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
private static extern int ExtractIconEx(string sFile, int iIndex, out IntPtr piLargeVersion, out IntPtr piSmallVersion, int amountIcons);
}
}
"@

Add-Type -TypeDefinition $dll_import -ReferencedAssemblies System.Drawing
$menuItem.Image = [System.IconExtractor]::Extract("shell32.dll", 174, $true)

### [W.U32]::mouse_event

Add-Type -MemberDefinition '[DllImport("user32.dll")] public static extern void mouse_event(int flags, int dx, int dy, int cButtons, int info);' -Name U32 -Namespace W;
[W.U32]::mouse_event(0x02 -bor 0x04 -bor 0x8000 -bor 0x01, .1*65535, .1 *65535, 0, 0)

### [Clicker]

$cSource = @'
using System;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Windows.Forms;
public class Clicker
{
//https://msdn.microsoft.com/en-us/library/windows/desktop/ms646270(v=vs.85).aspx
[StructLayout(LayoutKind.Sequential)]
struct INPUT
{ 
    public int        type; // 0 = INPUT_MOUSE,
                            // 1 = INPUT_KEYBOARD
                            // 2 = INPUT_HARDWARE
    public MOUSEINPUT mi;
}
//https://msdn.microsoft.com/en-us/library/windows/desktop/ms646273(v=vs.85).aspx
[StructLayout(LayoutKind.Sequential)]
struct MOUSEINPUT
{
    public int    dx ;
    public int    dy ;
    public int    mouseData ;
    public int    dwFlags;
    public int    time;
    public IntPtr dwExtraInfo;
}
//This covers most use cases although complex mice may have additional buttons
//There are additional constants you can use for those cases, see the msdn page
const int MOUSEEVENTF_MOVED      = 0x0001 ;
const int MOUSEEVENTF_LEFTDOWN   = 0x0002 ;
const int MOUSEEVENTF_LEFTUP     = 0x0004 ;
const int MOUSEEVENTF_RIGHTDOWN  = 0x0008 ;
const int MOUSEEVENTF_RIGHTUP    = 0x0010 ;
const int MOUSEEVENTF_MIDDLEDOWN = 0x0020 ;
const int MOUSEEVENTF_MIDDLEUP   = 0x0040 ;
const int MOUSEEVENTF_WHEEL      = 0x0080 ;
const int MOUSEEVENTF_XDOWN      = 0x0100 ;
const int MOUSEEVENTF_XUP        = 0x0200 ;
const int MOUSEEVENTF_ABSOLUTE   = 0x8000 ;
const int screen_length          = 0x10000 ;
//https://msdn.microsoft.com/en-us/library/windows/desktop/ms646310(v=vs.85).aspx
[System.Runtime.InteropServices.DllImport("user32.dll")]
extern static uint SendInput(uint nInputs, INPUT[] pInputs, int cbSize);
public static void LeftClickAtPoint(int x, int y)
{
    //Move the mouse
    INPUT[] input = new INPUT[3];
    input[0].mi.dx = x*(65535/System.Windows.Forms.Screen.PrimaryScreen.Bounds.Width);
    input[0].mi.dy = y*(65535/System.Windows.Forms.Screen.PrimaryScreen.Bounds.Height);
    input[0].mi.dwFlags = MOUSEEVENTF_MOVED | MOUSEEVENTF_ABSOLUTE;
    //Left mouse button down
    input[1].mi.dwFlags = MOUSEEVENTF_LEFTDOWN;
    //Left mouse button up
    input[2].mi.dwFlags = MOUSEEVENTF_LEFTUP;
    SendInput(3, input, Marshal.SizeOf(input[0]));
}
}
'@

Add-Type -TypeDefinition $cSource -ReferencedAssemblies System.Windows.Forms,System.Drawing
[Clicker]::LeftClickAtPoint(1900,1070)

### [Audio]

Add-Type -Language CsharpVersion3 -TypeDefinition @"
using System.Runtime.InteropServices;
[Guid("5CDF2C82-841E-4546-9722-0CF74078229A"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
interface IAudioEndpointVolume {
// f(), g(), ... are unused COM method slots. Define these if you care
int f(); int g(); int h(); int i();
int SetMasterVolumeLevelScalar(float fLevel, System.Guid pguidEventContext);
int j();
int GetMasterVolumeLevelScalar(out float pfLevel);
int k(); int l(); int m(); int n();
int SetMute([MarshalAs(UnmanagedType.Bool)] bool bMute, System.Guid pguidEventContext);
int GetMute(out bool pbMute);
}
[Guid("D666063F-1587-4E43-81F1-B948E807363F"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
interface IMMDevice {
int Activate(ref System.Guid id, int clsCtx, int activationParams, out IAudioEndpointVolume aev);
}
[Guid("A95664D2-9614-4F35-A746-DE8DB63617E6"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
interface IMMDeviceEnumerator {
int f(); // Unused
int GetDefaultAudioEndpoint(int dataFlow, int role, out IMMDevice endpoint);
}
[ComImport, Guid("BCDE0395-E52F-467C-8E3D-C4579291692E")] class MMDeviceEnumeratorComObject { }
public class Audio {
static IAudioEndpointVolume Vol() {
var enumerator = new MMDeviceEnumeratorComObject() as IMMDeviceEnumerator;
IMMDevice dev = null;
Marshal.ThrowExceptionForHR(enumerator.GetDefaultAudioEndpoint(/*eRender*/ 0, /*eMultimedia*/ 1, out dev));
IAudioEndpointVolume epv = null;
var epvid = typeof(IAudioEndpointVolume).GUID;
Marshal.ThrowExceptionForHR(dev.Activate(ref epvid, /*CLSCTX_ALL*/ 23, 0, out epv));
return epv;
}
public static float Volume {
get {float v = -1; Marshal.ThrowExceptionForHR(Vol().GetMasterVolumeLevelScalar(out v)); return v;}
set {Marshal.ThrowExceptionForHR(Vol().SetMasterVolumeLevelScalar(value, System.Guid.Empty));}
}
public static bool Mute {
get { bool mute; Marshal.ThrowExceptionForHR(Vol().GetMute(out mute)); return mute; }
set { Marshal.ThrowExceptionForHR(Vol().SetMute(value, System.Guid.Empty)); }
}
}
"@

[Audio]::Volume = 0.50
[Audio]::Mute = $true