Re: How to use traditional Windows message and API function ?

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#686

From: Luka Gabri�
Date: Sat, 23 Feb 2008 01:54

34 lines
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SendMessage works from my application using it's handle, but HWND_BROADCAST 
for handle doesn't work in application nor from other applications. When I 
try to Send something from DLL it works only when application is in focus, 
if not in focus send message is not working. When I use a timer in app to 
send a message to itself it works even if focus is not set on a form. I 
think everything would work fine if this SendMessage would work with 
HWND_BROADCAST! What is the problem with code below?


> Message receiving code:
>
> // application header
>
> MESSAGE void __fastcall func_name(TMessage &Message);
> BEGIN_MESSAGE_MAP
>  VCL_MESSAGE_HANDLER(xxxx,TMessage,func_name); //xxxx - message 
> identifier,
> > 1024
>  END_MESSAGE_MAP(TForm);
>
> //  application cpp file
>
> MESSAGE void __fastcall TFormX::func_name(TMessage &Message)
> {
> ShowMessage("Message received, parameter1 = " + IntToStr(Message.LParam) + 
> ", parameter2 = " + IntToStr(Message.WParam));
> }
>
> Code to send a message
>
> SendMessageA(hinst,xxxx,5,7);
>
> //hinst - app form handle, xxxx - message identifier (same as in main 
> application), parameter1=5, parameter2=7.

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From: "Luka Gabri�" <luka.gabric@gmail.com>
Newsgroups: borland.public.cppbuilder.nativeapi
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Subject: Re: How to use traditional Windows message and API function ?
Date: Sat, 23 Feb 2008 02:54:51 +0100
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