Re: how to catch WM_CTLCOLOR message use a hook?

"Sunny" <>
Wed, 7 Jan 2009 09:04:15 +0800
oh, I write a application ,and i call the SetwindowHookEx when it starts.
and the registered hook procedure is HookProc .

my problem is that i want to catch WM_CTLCOLOR in HookProc,

for example if i want to catch WM_CREATE, i will do this like bellow.

LRESULT CALLBACK HookProc(int nCode, WPARAM wParam, LPARAM lParam)
     LONG lReturn = 0;
     if( nCode == HC_ACTION )
          PCWPSTRUCT pcwps=(PCWPSTRUCT)lParam;
              case WM_CTLCOLOR:
                          //But here never reached.
              case WM_CREATE:
                        //Here i catch the message WM_CREATE
     return CallNextHookEx(g_hHook, nCode, wParam, lParam);

"Ajay Kalra" <>
Not clear what you are asking. There is nothing special about this
message in a hook. What exactly is the problem that you are having
when you use a hook.

Also, a Cbutton doesnt respond to WM_CTLCOLOR. It needs to be owner


On Jan 5, 11:34 pm, "Sunny" <> wrote:

Thanks your answer .
I use a hook inorder to change a control 's face , for example use
replace all CButton, including the button on system dialog, e.g

"Jonathan Wood" <>

I think you need to be a bit more specific. If you want your window to
handle WM_CTLCOLOR, no hook is needed.

Can you explain more about what you are doing?

Jonathan Wood
SoftCircuits Programming

"Sunny" <> wrote in message

Can someone help me.
Any attention is appreciate.

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