В Windows, в частности в Delphi, используются Hint для полного отображения не умещающихся строк. Достаточно к такой строке поднести мышь, и всплывает подсказка с полным текстом на том же месте. Как это реализовать показано ниже.
Code:
...
public
HintRow: Integer;
HintString: String;
procedure OnShowHint(var HintStr: string;
var CanShow: Boolean; var HintInfo: THintInfo);
...
procedure TForm1.FormCreate(Sender: TObject);
begin
Application.HintPause := 100;
Application.HintHidePause := 30000;
ListBox1.Items.Add('It is a long row');
ListBox1.Items.Add('It is a very long row');
ListBox1.Items.Add('And it is a very very long row');
ListBox1.Items.Add('But this row if longer then other rows');
ListBox1.Items.Add('It was not truth, because this row is so long, that I do not know, what' + #13#10 +
'will do the program with this row. Do You know it? I think that it will be' + #13#10 +
'very interesting to look at this row. But if it will be longer and longer,' + #13#10 +
'what will be? Look!!!');
ListBox1.Items.Add('Short row');
ListBox1.Items.Add('123');
procedure TForm1.ListBox1MouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer);
var
ItemNum: Integer;
begin
ItemNum := ListBox1.ItemAtPos(Point(X, Y), True);
if (ItemNum <> HintRow) then begin
HintRow := ItemNum;
Application.CancelHint;
if HintRow > -1 then begin
HintString := ListBox1.Items[ItemNum];
if (ListBox1.Canvas.TextWidth(HintString) <= ListBox1.ClientWidth)
then HintString := '';
end else HintString := '';
end;
end;
procedure TForm1.OnShowHint(var HintStr: string;
var CanShow: Boolean; var HintInfo: THintInfo);
begin
if not (HintInfo.HintControl is TListBox) then Exit;
with HintInfo.HintControl as TListBox do begin
HintInfo.HintPos := ListBox1.ClientToScreen(Point(-1,
