修复lazarus在银河麒麟 Object Inspector下拉不显示的Bug

修复lazarus在银河麒麟 Object Inspector下拉不显示的Bug,
打开lazarus\components\ideintf\objectinspector.pp(3489行开始)，按红字的修改后重新编译lazarus就可以。

procedure TOICustomPropertyGrid.ValueComboBoxDrawItem(Control: TWinControl;
  Index: Integer; ARect: TRect; State: TOwnerDrawState);
var
  CurRow: TOIPropertyGridRow;
  ItemValue: string;
  AState: TPropEditDrawState;
  FontColor: TColor;
begin
  if (FItemIndex>=0) and (FItemIndex<FRows.Count) then begin
    CurRow:=Rows[FItemIndex];
    if (Index>=0) and (Index<ValueComboBox.Items.Count) then
      ItemValue:=ValueComboBox.Items[Index]
    else
      ItemValue:='';
    AState:=[];
    if odSelected in State then Include(AState,pedsSelected);
    if odFocused in State then Include(AState,pedsFocused);
    if odComboBoxEdit in State then
      Include(AState,pedsInEdit)
    else
      Include(AState,pedsInComboList);

    if not(odBackgroundPainted in State) then
      ValueComboBox.Canvas.FillRect(ARect);

    FontColor := ValueComboBox.Canvas.Font.Color;
    ValueComboBox.Canvas.Font.Assign(FDefaultValueFont);
    if odSelected in State then
      ValueComboBox.Canvas.Font.Color := FontColor
    else
      //ValueComboBox.Canvas.Font.Color := clWindowText;
    //2022.5.24 LBZ 以下代码修正字体颜色与背景颜色相同的Bug
    begin
      if FontColor<> clWindowText then
         ValueComboBox.Canvas.Font.Color := clWindowText
      else
         ValueComboBox.Canvas.Font.Color := clWindow;
    end;
    //2022.5.24 LBZ 以上代码修正字体颜色与背景颜色相同的Bug
    if CurRow.Editor.HasDefaultValue and (ItemValue = CurRow.Editor.GetDefaultValue) then
      ValueComboBox.Canvas.Font.Style := ValueComboBox.Canvas.Font.Style + [fsItalic];
    CurRow.Editor.ListDrawValue(ItemValue,Index,ValueComboBox.Canvas,ARect,AState);
  end;
end;

修复前：

修复后：

标签：Index,Canvas,lazarus,Object,ValueComboBox,Inspector,Font,CurRow
来源： https://www.cnblogs.com/qiufeng2014/p/16305303.html