How to get the handle of the edit box in the Internet Explorer

Problem/Question/Abstract:

I need to get the EditBox's handle(HWND) in IE. I can't do it, although I get the edit handle in other forms with the mousehook function.

Answer:

Solve 1:

Try the following:


var
  hndl: HWND;
  main: HWND;
begin
  main := FindWindow('IEFrame', nil);

  if main <> 0 then
  begin
    hndl := findwindowex(main, 0, 'Worker', nil);

    if hndl <> 0 then
    begin
      hndl := findwindowex(hndl, 0, 'ReBarWindow32', nil);

      if hndl <> 0 then
      begin
        hndl := findwindowex(hndl, 0, 'ComboBoxEx32', nil);

        if hndl <> 0 then
        begin
          hndl := findwindowex(hndl, 0, 'ComboBox', nil);

          if hndl <> 0 then
          begin
            hndl := findwindowex(hndl, 0, 'Edit', nil);


Solve 2:

Unfortunately, you will not be able to get the handle from one that is a child of Internet Explorer_Server, as IE renders that itself from the HTML (input type="text" ...)

Here's some code to get the handle of the AddressBar edit control:


unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls;

type
  TForm1 = class(TForm)
    Label1: TLabel;
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
    procedure FindIEEditHandle;
  end;

var
  Form1: TForm1;
  EditHandle: THandle;

implementation

{$R *.DFM}

function EnumIEChildProc(AHandle: hWnd; AnObject: TObject): BOOL; stdcall;
var
  tmpS: string;
  theClassName: string;
  theWinText: string;
begin
  Result := True;
  SetLength(theClassName, 256);
  GetClassName(AHandle, PChar(theClassName), 255);
  SetLength(theWinText, 256);
  GetWindowText(AHandle, PChar(theWinText), 255);
  tmpS := StrPas(PChar(theClassName));
  if theWinText <> EmptyStr then
    tmpS := tmpS + '"' + StrPas(PChar(theWinText)) + '"'
  else
    tmpS := tmpS + '""';
  if Pos('Edit', tmpS) > 0 then
  begin
    EditHandle := AHandle;
  end;
end;

function IEWindowEnumProc(AHandle: hWnd; AnObject: TObject): BOOL; stdcall;
{callback for EnumWindows.}
var
  theClassName: string;
  theWinText: string;
  tmpS: string;
begin
  Result := True;
  SetLength(theClassName, 256);
  GetClassName(AHandle, PChar(theClassName), 255);
  SetLength(theWinText, 256);
  GetWindowText(AHandle, PChar(theWinText), 255);
  tmpS := StrPas(PChar(theClassName));
  if theWinText <> EmptyStr then
    tmpS := tmpS + '"' + StrPas(PChar(theWinText)) + '"'
  else
    tmpS := tmpS + '""';
  if Pos('IEFrame', tmpS) > 0 then
  begin
    EnumChildWindows(AHandle, @EnumIEChildProc, longInt(0));
  end;
end;

procedure TForm1.FindIEEditHandle;
begin
  Screen.Cursor := crHourGlass;
  try
    EnumWindows(@IEWindowEnumProc, LongInt(0));
  finally
    Screen.Cursor := crDefault;
  end;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  FindIEEditHandle;
  if EditHandle > 0 then
    Label1.Caption := IntToStr(EditHandle)
  else
    label1.Caption := 'Not Found';
end;

end.