修改标题栏高度

{修改系统标题栏高度,所有窗口都会改变}
var
  ncm: TNonClientMetrics;
begin
  ncm.cbSize := sizeof(TNonClientMetrics);
  SystemParametersInfo(SPI_GETNONCLIENTMETRICS, sizeof(TNonClientMetrics), @ncm, 0);
  ncm.iCaptionHeight := 25;
  SystemParametersInfo(SPI_SETNONCLIENTMETRICS, sizeof(TNonClientMetrics), @ncm, 0);
end;

{通过消息控制修改,当前窗体}
Procedure WMNCalcSize(var Msg: TWMNCCalcSize);
begin
  Msg.CalcSize_Params^.rgrc[0].Top := Msg.CalcSize_Params^.rgrc[0].Top + 35;
  inherited;
end;

{隐藏标题栏,保留窗体3D边框}
begin
  SetWindowLong(Self.Handle, GWL_STYLE, GetWindowLong(Self.Handle, GWL_STYLE) and not WS_CAPTION);
  Height := ClientHeight;
{隐藏系统菜单}
  SetWindowLong(Self.Handle, GWL_STYLE, GetWindowLong(Self.Handle, GWL_STYLE) and not WS_SYSMENU);

end;