Getwindowtext in C#

Question

How can I use the Getwindowtext function in c# ? Need to convert this function into Delphi for c#

function FindWindowExt(partialTitle: string): HWND;
var
  hWndTemp: hWnd;
  iLenText: Integer;
  cTitletemp: array [0..254] of Char;
  sTitleTemp: string;
begin
  hWndTemp := FindWindow(nil, nil);
  while hWndTemp <> 0 do begin
    iLenText := GetWindowText(hWndTemp, cTitletemp, 255);
    sTitleTemp := cTitletemp;
    sTitleTemp := UpperCase(copy( sTitleTemp, 1, iLenText));
    partialTitle := UpperCase(partialTitle);
    if pos( partialTitle, sTitleTemp ) <> 0 then
      Break;
    hWndTemp := GetWindow(hWndTemp, GW_HWNDNEXT);
  end;
  result := hWndTemp;
end;

Answer 1

Use the attribution DllImport to import the function in a class:

public class WindowsUtils{
    [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
    static extern int GetWindowText(IntPtr hWnd, StringBuilder lpString, int nMaxCount);
}

Then just use as any static function.