Question

Possible Duplicate:
Windows Taskbar API
Win32: How to hide 3rd party windows in taskbar by hWnd

How can I prevent window from showing in the taskbar after I created it with CreateWindow? (Is there any parameter that allows me to do this, or something?)

Answer 1

set ‘dwStyle’ to WS_POPUP, the third argument:

HWND WINAPI CreateWindow(
    __in_opt  LPCTSTR lpClassName,
    __in_opt  LPCTSTR lpWindowName,
    __in      DWORD dwStyle,
    __in      int x,
    __in      int y,
    __in      int nWidth,
    __in      int nHeight,
    __in_opt  HWND hWndParent,
    __in_opt  HMENU hMenu,
    __in_opt  HINSTANCE hInstance,
    __in_opt  LPVOID lpParam);

If you’re doing win32, I suggest, for your own sanity, you give Qt a try.