Windows 10上TabTip.exe(虚拟键盘)的大小和位置?

时间:2018-05-08 06:04:23

标签: delphi winapi virtual-keyboard

需要确定Windows 10上TabTip.exe(虚拟键盘)的大小(宽度,高度)和位置(左侧,顶部)?

任务是移动所有组件所在的面板,以便输入焦点的输入字段位于虚拟键盘上方。

使用Windows 10不在管理员下,但已编译的项目以管理员身份运行!

以下解决方案适用于Windows 7,Windows 8,在Windows 10中不起作用:

uses ..., Winapi.Windows, Winapi.Dwmapi
...
procedure TForm1.SizeKeyboard;
var KeyBoardRect: TRect;
    KeyboardWindow : HWND;
begin
  KeyboardWindow := FindWindow('IPTip_Main_Window', nil);
  if (KeyboardWindow <> 0) then
    KeyBoardRect := GetRect1(KeyboardWindow);
  ...
end;
...

function TForm1.GetRect1(AKeyboardWindow : HWND): Trect;
var KeyBoardRect: Trect;
begin
    GetWindowRect(AKeyboardWindow, KeyBoardRect);
    Result := KeyBoardRect;
end;


function TForm1.GetRect2(AKeyboardWindow : HWND): Trect;
var KeyBoardRect: Trect;
begin
    DwmGetWindowAttribute(AKeyboardWindow, DWMWA_EXTENDED_FRAME_BOUNDS,     @KeyBoardRect, sizeof(KeyBoardRect));

    Result :=  KeyBoardRect;
end;

Windows 10触控键盘是一个UWP应用程序。 UWP应用程序没有本机窗口,无法通过HWND引用。您可以使用UI自动化来获取触摸键盘Get size of Windows 10 touch keyboard window的边界矩形!

https://msdn.microsoft.com/en-us/library/windows/desktop/ee671425(v=vs.85).aspx

加载类型库 - UIAutomationClient接口IUIAutomation,IUIAutomationElement(UIAutomationClient_TLB)

function TForm1.getRect4(AKeyboardWindow : HWND): Trect;
var AUTOMATION : IUIAutomation;
  Root : IUIAutomationElement;
  rRect:UIAutomationClient_TLB.tagRECT;
begin
    AUTOMATION := CoCUIAutomation.Create;
    AUTOMATION.GetRootElement(Root);
    AUTOMATION.ElementFromHandle(Pointer(AKeyboardWindow), Root);
    Root.Get_CurrentBoundingRectangle(rRect);
    Result :=  TRect(rRect);
end;

function TForm1.getRect5(AKeyboardWindow : HWND): Trect;
var AUTOMATION : IUIAutomation;
  Root : IUIAutomationElement;
  olRect: OleVariant;
  rRect:UIAutomationClient_TLB.tagRECT;
begin
  AUTOMATION := CoCUIAutomation.Create;
  AUTOMATION.GetRootElement(Root);
  AUTOMATION.ElementFromHandle(Pointer(AKeyboardWindow), Root);
  Root.GetCurrentPropertyValue(BoundingRectangle, olRect);
  AUTOMATION.VariantToRect(olRect, rRect);

  Result :=  TRect(rRect);
end;

键盘通话

function ExpandEnvironmentVar(var Value: string): Boolean;
var
  R: Integer;
  Expanded: string;

procedure StrResetLength(var S: string);
  var
    I: Integer;
  begin
    for I := 0 to Length(S) - 1 do
      if S[I + 1] = #0 then
      begin
        SetLength(S, I);
        Exit;
      end;
  end;

begin
  SetLength(Expanded, 1);
  R := ExpandEnvironmentStrings(PChar(Value), PChar(Expanded), 0);
  SetLength(Expanded, R);
  Result := ExpandEnvironmentStrings(PChar(Value), PChar(Expanded), R) <> 0;
  if Result then
  begin
    StrResetLength(Expanded);
    Value := Expanded;
  end;
end;



procedure TForm1.btnCloseClick(Sender: TObject);
var
  MyHandle1: THandle;
begin
  MyHandle1 := FindWindow('IPTip_Main_Window', nil);
  if MyHandle1 <> 0 then
    PostMessage(MyHandle1, WM_SYSCOMMAND, SC_CLOSE, 0);
end;



procedure TForm1.btnOpenClick(Sender: TObject);
var
  S: string;
begin
  btnClose.Click;
  S := '%CommonProgramW6432%\microsoft shared\ink\tabtip.exe';
  ExpandEnvironmentVar(S);
  ShellExecute(0, PChar('open'), PChar(S), nil, nil, SW_SHOWNORMAL);
end;

没有成功(左= 0顶= 0宽= 0高= 0)!有没有人这样做过,或者他知道该怎么办?

1 个答案:

答案 0 :(得分:1)

您应该实施IFrameworkInputPaneHandler

  

允许在显示或隐藏输入窗格(屏幕键盘或手写面板)时通知应用。这允许应用程序窗口调整其显示,以便输入窗格不会遮挡输入区域(例如文本框)。

有关详细信息和示例代码,请参阅this blog post