Suppose if I send a message from one application,
how can the other application receive the message that I send.
I can use SendMessage API to send a message.
What should I use to receive a Message.

From Application1,I use

const WM_MYMESSAGE WM_APP+$200
SendMessage(appHandle,WM_MYMESSAGE,0,0);

What should be written in Application2 to receive this message.

Thanks for your replies.

: Suppose if I send a message from one application,
: how can the other application receive the message that I send.
: I can use SendMessage API to send a message.
: What should I use to receive a Message.
:
: From Application1,I use
:
: const WM_MYMESSAGE WM_APP+$200
: SendMessage(appHandle,WM_MYMESSAGE,0,0);
:
: What should be written in Application2 to receive this message.
:
: Thanks for your replies.
:
You need to write an OnMessage() event for the application.

: : Suppose if I send a message from one application,
: : how can the other application receive the message that I send.
: : I can use SendMessage API to send a message.
: : What should I use to receive a Message.
: :
: : From Application1,I use
: :
: : const WM_MYMESSAGE WM_APP+$200
: : SendMessage(appHandle,WM_MYMESSAGE,0,0);
: :
: : What should be written in Application2 to receive this message.
: :
: : Thanks for your replies.
: :
: You need to write an OnMessage() event for the application.
:

Can you kindly give a sample piece of code,what to write
in OnMessage() event.I haven't used Message Handling.
Thanks Zibadian.

: : : Suppose if I send a message from one application,
: : : how can the other application receive the message that I send.
: : : I can use SendMessage API to send a message.
: : : What should I use to receive a Message.
: : :
: : : From Application1,I use
: : :
: : : const WM_MYMESSAGE WM_APP+$200
: : : SendMessage(appHandle,WM_MYMESSAGE,0,0);
: : :
: : : What should be written in Application2 to receive this message.
: : :
: : : Thanks for your replies.
: : :
: : You need to write an OnMessage() event for the application.
: :
:
: Can you kindly give a sample piece of code,what to write
: in OnMessage() event.I haven't used Message Handling.
: Thanks Zibadian.
:
:

procedure TForm1.OnMessage(var Msg: TMsg; var Handled: Boolean);
begin
  if Msg.Message = WM_MYMESSAGE then
  begin
    DoSomething(Msg.wParam, Msg.lParam);
    Handled := true;
  end;
end;