var
p:TPoint;
begin
GetCursorPos(p);
PopupMenu1.Popup(p.x,p.Y);
end;
现在要取得 Button1的Left 和Bottom的值 菜单就在这个位置出现
procedure TForm1.Button1Click(Sender: TObject);
var
p:TPoint;
begin
p.X:=Button1.Left;
p.y:=Button1.Top +Button1.Height;
p:=Self.ClientToScreen(p);
PopupMenu1.Popup(p.x,p.y);
end;
同样适用窗体的Show
function GetControlPos(frm:TForm;ctrl:TControl):TPoint;
var
p:TPoint;
begin
p.X:=ctrl.Left;
p.y:=ctrl.Top +ctrl.Height;
p:=frm.ClientToScreen(p);
Result:=p;
end;
procedure TForm1.Button2Click(Sender: TObject);
var
p:TPoint;
begin
p:=GetDeskPos(Self,Button2);
PopupMenu1.Popup(p.X,p.Y);
end;
