Notification Messages from objects

[Biancu]

Hi, i can't send a message from a CDlgclass to the Imagen class, a CWnd
derived class. I'm using Visual Studio ++. I have declare it into the
message map. I've also defined it
#define WM_INGRESAR_RES WM_USER + 1

class CDlgClass
void CIngresarResDlg::OnOK()
{
Imagen nuevaRes ;
Imagen* pnuevaRes;
pnuevaRes = &nuevaRes;

pnuevaRes ->SendMessage (WM_INGRESAR_RES , 0, 0);

}

The sender Object needs a pointer to the receiver class, which is the
Image class.
The program compiles, but the message never arrive.
Thanks

[Jonathan Mcdougall]

Biancu wrote:

Hi, i can't send a message from a CDlgclass to the Imagen class, a CWnd
derived class.

http://www.parashift.com/c++-faq-lit...t.html#faq-5.9
Jonathan

[Phlip]

Biancu wrote:

class CDlgClass
void CIngresarResDlg::OnOK()
{
Imagen nuevaRes ;
This is an image object (presumably) that is constructed with no current or
parent window. It's just an empty constructor.
Imagen* pnuevaRes;
pnuevaRes = &nuevaRes;

pnuevaRes ->SendMessage (WM_INGRESAR_RES , 0, 0);

}

The sender Object needs a pointer to the receiver class, which is the
Image class.

You need to learn more C++ before attempting to use MFC. (You might also try
to get a better library than MFC. It is a very bad example of C++
architecture.) The SendMessage() method doesn't "need" a pointer. If
pnuevaRes->SendMessage() would work, then nuevaRes.SendMessage() would
work, with a dot.

But either way it won't work, because the nuevaRes object is not linked to
any real window to receive the message.

From here, you must use Google Groups to find a newsgroup that covers MFC.
(You might also find one that uses a language you like besides English.)
They will tell you how to send the message to the correct image control.

This newsgroup is only qualifed to discuss the raw C++ language itself. We
know -> but not Image objects!

--
Phlip
http://www.greencheese.us/ZeekLand <-- NOT a blog!!!