BitBlt on child window create in kbdmouse.dll

From: Francis (kclye_at_hotmail.com)
Date: 05/31/04 

Date: Mon, 31 May 2004 09:46:41 +0800

Dear all,
    I wish to implement a custom keypad driver that similar to handphone
keypad on WinCE.Net platform. When a button "1" is press, I wish to launch a
small soft-keyboard that contains a,b,c,A,B,C,1 for user to choose.
Therefore, I make a call to CreateWindow and bitblt API in kbdmouse.dll and
it can successfully create the custom soft-keyboard. But this will cause
conflict with my other application and causing them cannot execute at all.
Those application work well before I implement CreateWindow in kdbmouse.dll.
    Instead of doing that, I try to use CreateWindow API to create a child
window and assign its parent to SipWndClass. I have this idea by refering to
sample MSIM source code. But this fail to display any bitmap using BitBlt
function.
    Can someone give me some hint how to resolve this issue? Or is that any
better way to implement handphone keypad driver?

Thank you.

Best Regards,
Francis