unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, DB, ADODB, Grids, DBGrids;
type
TForm1 = class(TForm)
DBGrid1: TDBGrid;
ADOTable1: TADOTable;
DataSource1: TDataSource;
procedure FormCreate(Sender: TObject);
private
Procedure OnMouseWheel(Var Msg :TMsg;var Handled:Boolean);
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
//------------------------------------------------------------------------------
Procedure TForm1.OnMouseWheel(Var Msg :TMsg;var Handled:Boolean);
begin
if Msg.message = WM_MouseWheel then
begin
if Msg.wParam > 0 then
begin
if DBGrid1.Focused then
SendMessage(DBGrid1.Handle,WM_VSCROLL,SB_PAGEUP,0);
end
else
begin
if DBGrid1.Focused then
SendMessage(DBGrid1.Handle,WM_VSCROLL,SB_PAGEDOWN,0);
end;
Handled:= True;
end;
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
Application.OnMessage:=OnMouseWheel; // 截获鼠标滚动事件
end; |
