在线程中响应消息
type
TMyThread=class(TThread)
private
FOwner:TControl;
FOwnerProc:TWndMethod;
FMessage:TMessage;
FEvent :TSimpleEvent;
procedure ThreadWndProc(var Message:TMessage);
constructor Create(AOwner:TControl);
destructor Destroy;
protect
procedure Execute;override;
end;
constructor TMyThread.Create(AOwner:TControl);
begin
inherited Create(True);
FOwner:=AOwner;
if Assigned(FOwner) then
begin
FOwenrProc:=AOwner.WindowProc;
FOwner.WindowProc:=ThreadWndProc;
end;
FEvent:=TSimpleEvent.Create;
end;
destroy TMyThread.Destroy;
begin
if Assigned(FOwner) then
FOwner.WindowProc:=FOwnerProc;
FEvent.Free;
inherited Destroy;
end;
procedure TMyThread.ThreadWndProc(var Message:TMessage);
begin
if Message.Msg=WM_DESTROY then
begin
FOwner.WindowProc:=FOwnerProc;
FOwnerProc:=nil;
FOwner:=nil;
end;
if Message.Msg=所要处理的消息 then
begin
FMessage:=Message;
FEvent.SetEvent;
end
else
if Assigned(FOwnerProc) then
FOwnerProc(Message);
end;
procedure TMyThread.Execute;
begin
while not Terminateddo
begin
FEvent.WaitFor(INIFILE);
FEvent.ResetEvent;
....//根据FMessage处理消息
end
end;