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Discussion in 'Delphi Programming' started by N0body, Feb 14, 2014.

  1. N0body
    Online

    N0bodyN0body is a Verified Member DelphiFan Administrator Staff Member DF Staff

    Code:
    function EnumChildProc(Wnd: hWnd; SL: TStrings): BOOL; stdcall;
    var
    szFull: array[0..MAX_PATH] of Char; //Buffer for window caption
    begin
    Result := Wnd <> 0;
    if Result then 
    begin
    GetWindowText(Wnd, szFull, SizeOf(szFull)); // put window text in buffer
    if (Pos(SL[0], StrPas(szFull)) > 0) // Test for text
    and (SL.IndexOfObject(TObject(Wnd)) < 0) // Test for duplicate handles
    then SL.AddObject(StrPas(szFull), TObject(Wnd)); // Add item to list
    EnumChildWindows(Wnd, @EnumChildProc, Longint(SL)); //Recurse into child windows
    end;
    end;
    
    function ClickButton(ParentWindow: Hwnd; ButtonCaption: string): Boolean;
    var
    SL: TStringList;
    H: hWnd;
    begin
    SL := TStringList.Create;
    try
    SL.AddObject(ButtonCaption, nil); // First item in list is text to find
    EnumChildWindows(ParentWindow, @EnumChildProc, Longint(SL));
    H := 0;
    case SL.Count of
    1: ShowMessage('Window text not found.');
    2: H := hWnd(SL.Objects[1]);
    else 
    ShowMessage('Ambiguous text detected.');
    end;
    finally
    SL.Free;
    end;
    Result := H <> 0;
    if Result then PostMessage(H, BM_CLICK, 0, 0);
    end;
     

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