public static void BeWallpaper(IntPtr form)
{
var progman = WinNative.FindWindow("Progman", null);
WinNative.SendMessage(progman, 0x052C, 0x0000000D, 0);
WinNative.SendMessage(progman, 0x052C, 0x0000000D, 1);
WinNative.SendMessage(progman, 0x052C, 0x0000000D, 0);
WinNative.SendMessage(progman, 0x052C, 0x0000000D, 1);
IntPtr target = IntPtr.Zero;
int count = 5;
while (target == IntPtr.Zero)
{
WinNative.EnumWindows(new WinNative.EnumWindowsProc((hwnd, param) =>
{
IntPtr p = WinNative.FindWindowEx(hwnd,
IntPtr.Zero,
"SHELLDLL_DefView",
null);
if (p != IntPtr.Zero)
{
target = WinNative.FindWindowEx(IntPtr.Zero,
hwnd,
"WorkerW",
null);
if (target != IntPtr.Zero)
{
return(false);
}
}
return(true);
}), IntPtr.Zero);
if (--count <= 0)
{
throw new NotSupportedException();
}
}
WinNative.SetParent(form, target);
WinNative.ShowWindow(form, WinNative.SW_MAXIMIZE);
}
public static List <IntPtr> GetProcessMainWindows(int dwProcessID)
{
IntPtr hwnd = IntPtr.Zero;
List <IntPtr> windows = new List <IntPtr>();
do
{
hwnd = WinNative.FindWindowEx(IntPtr.Zero, hwnd, null, null);
uint dwPID = 0;
WinNative.GetWindowThreadProcessId(hwnd, out dwPID);
if (dwPID == dwProcessID)
{
windows.Add(hwnd);
}
}while (hwnd != IntPtr.Zero);
return(windows);
}
