Problems with button commands (with WndProc)

Tnx to everybody who helped me on that last thread. Now, I would like to learn about each of the specific parts of the wParam and lParam (I am tired of searching for explanations of each of those on the Internet, because no site ever explains it), and also a good command for when you click a button.

Tnx!

wParam and lParam depend of the message and so does the info they cary. When you click a button a WM_COMMAND message is sent. Here is how to handle it:

Code:

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switch (message)
{
case WM_COMMAND:
        {
        if ((HWND)lParam == HWNDofbutton)
                //the button is clicked
                }
break;
}

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Hey, it works! Tnx! :D

Bad manner Abdul
just because the hwnd is the buttons hwnd that does not necessarily mean that the button was clicked.
Actually, with a normal button the only other option is doubleclicked, but just out of principle...

Code:

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if(LOWORD(wParam) == BUTTONID && HIWORD(wParam) == BN_CLICKED)...

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Quote:

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Originally posted by CornedBee
Bad manner Abdul
[/code]

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Me? I have not posted anything in this thread before:D;)

OOps, sorry ! I meant Vlatko. :eek:
The problem are not buttons, but I have seen the same thing used to see if a edit box was clicked, and they wondered why the response came two times. I think the thread is called "Twins?".