[DllImport("Kernel32.dll")]
public static extern bool SetProcessWorkingSetSize(IntPtr hWnd, int minSize, int maxSize);
 
public void FlushMemory()
{
    GC.Collect();

/*Функция для получение TextBox из активной вкладке TabControl*/
private TextBox GetTBox()
{
    TextBox TBox = null;
    TabPage TPage = tabControl.SelectedTab;

private string GetNetworkStatus()
{
    Ping pingNet = new Ping();
    PingReply pingReply = pingNet.Send(@"yandex.ru");
    IPStatus ipStatus = pingReply.Status;

[DllImport("UxTheme.dll", ExactSpelling = true, CharSet = CharSet.Unicode)]
public static extern in SetWindowTheme(IntPtr hWnd, string supAppName, string subIdList);
 
 /*TreeView*/

private void LoadFile(string FileName, Encoding encText)
{
    StreamReader Sr = new StreamReader(FileName, encText);
    
    textBox.Text = Sr.ReadToEnd();
    Sr.Close();
}