您应该首先执行一个快速测试，看看这种方法是否可以帮助您，只需将WS_EX_COMPOSITED窗口样式添加到所有窗口控件。如果这样工作，你可以考虑下面更先进的方法：

快攻

procedure EnableComposited(WinControl: TWinControl);
var
  i: Integer;
  NewExStyle: DWORD;
begin
  NewExStyle := GetWindowLong(WinControl.Handle,GWL_EXSTYLE) or WS_EX_COMPOSITED;
  SetWindowLong(WinControl.Handle,GWL_EXSTYLE,NewExStyle);

  for i := 0 to WinControl.ControlCount-1 do
    if WinControl.Controls[i] is TWinControl then
      EnableComposited(TWinControl(WinControl.Controls[i]));
end;

调用这个，例如，在您的TForm的OnShow中，传递表单实例。如果这有帮助，那么你真的应该更明智地实施它。我向我提供了我的代码中的相关摘录，以说明我是如何做到的。

全代码

procedure TMyForm.WMEnterSizeMove(var Message: TMessage);
begin
  inherited;
  BeginSizing;
end;

procedure TMyForm.WMExitSizeMove(var Message: TMessage);
begin
  EndSizing;
  inherited;
end;

procedure SetComposited(WinControl: TWinControl; Value: Boolean);
var
  ExStyle,NewExStyle: DWORD;
begin
  ExStyle := GetWindowLong(WinControl.Handle,GWL_EXSTYLE);
  if Value then begin
    NewExStyle := ExStyle or WS_EX_COMPOSITED;
  end else begin
    NewExStyle := ExStyle and not WS_EX_COMPOSITED;
  end;
  if NewExStyle<>ExStyle then begin
    SetWindowLong(WinControl.Handle,NewExStyle);
  end;
end;

function TMyForm.SizingCompositionIsPerformed: Boolean;
begin
  //see The Old New Thing,Taxes: Remote Desktop Connection and painting
  Result := not InRemoteSession;
end;
procedure TMyForm.BeginSizing;
var
  UseCompositedWindowStyleExclusively: Boolean;
  Control: TControl;
  WinControl: TWinControl;
begin
  if SizingCompositionIsPerformed then begin
    UseCompositedWindowStyleExclusively := Win32MajorVersion>=6;//XP can't handle too many windows with WS_EX_COMPOSITED
    for Control in ControlEnumerator(TWinControl) do begin
      WinControl := TWinControl(Control);
      if UseCompositedWindowStyleExclusively then begin
        SetComposited(WinControl,True);
      end else begin
        if WinControl is TPanel then begin
          TPanel(WinControl).FullRepaint := False;
        end;
        if (WinControl is TCustomGroupBox) or (WinControl is TCustomRadioGroup) or (WinControl is TCustomGrid) then begin
          //can't find another way to make these awkward customers stop flickering
          SetComposited(WinControl,True);
        end else if ControlSupportsDoubleBuffered(WinControl) then begin
          WinControl.DoubleBuffered := True;
        end;
      end;
    end;
  end;
end;

procedure TMyForm.EndSizing;
var
  Control: TControl;
  WinControl: TWinControl;
begin
  if SizingCompositionIsPerformed then begin
    for Control in ControlEnumerator(TWinControl) do begin
      WinControl := TWinControl(Control);
      if WinControl is TPanel then begin
        TPanel(WinControl).FullRepaint := True;
      end;
      UpdateDoubleBuffered(WinControl);
      SetComposited(WinControl,False);
    end;
  end;
end;

function TMyForm.ControlSupportsDoubleBuffered(Control: TWinControl): Boolean;
const
  NotSupportedClasses: array [0..1] of TControlClass = (
    TCustomForm,//general policy is not to double buffer forms
    TCustomRichEdit//simply fails to draw if double buffered
  );
var
  i: Integer;
begin
  for i := low(NotSupportedClasses) to high(NotSupportedClasses) do begin
    if Control is NotSupportedClasses[i] then begin
      Result := False;
      exit;
    end;
  end;
  Result := True;
end;

procedure TMyForm.UpdateDoubleBuffered(Control: TWinControl);

  function ControlIsDoubleBuffered: Boolean;
  const
    DoubleBufferedClasses: array [0..2] of TControlClass = (
      TMyCustomGrid,//flickers when updating
      TCustomListView,//flickers when updating
      TCustomStatusBar//drawing infidelities,e.g. my main form status bar during file loading
    );
  var
    i: Integer;
  begin
    if not InRemoteSession then begin
      //see The Old New Thing,Taxes: Remote Desktop Connection and painting
      for i := low(DoubleBufferedClasses) to high(DoubleBufferedClasses) do begin
        if Control is DoubleBufferedClasses[i] then begin
          Result := True;
          exit;
        end;
      end;
    end;
    Result := False;
  end;

var
  DoubleBuffered: Boolean;

begin
  if ControlSupportsDoubleBuffered(Control) then begin
    DoubleBuffered := ControlIsDoubleBuffered;
  end else begin
    DoubleBuffered := False;
  end;
  Control.DoubleBuffered := DoubleBuffered;
end;

procedure TMyForm.UpdateDoubleBuffered;
var
  Control: TControl;
begin
  for Control in ControlEnumerator(TWinControl) do begin
    UpdateDoubleBuffered(TWinControl(Control));
  end;
end;

这不会为你编译，但它应该包含一些有用的想法。 ControlEnumerator是我的实用工具，用于将子控件的递归步调转换为平面循环。请注意，我还使用一个自定义分割器，当它处于活动状态时调用BeginSizing / EndSizing。

另一个有用的技巧是使用TStaticText而不是TLabel，当您拥有深度嵌页的页面控件和面板时，您偶尔需要执行此操作。

我使用这个代码使我的应用程序100％闪烁免费，但它花了我的年龄和年龄的实验，以获得它所有到位。希望别人能在这里找到有用的东西。