Changing Background colour of Toolbar with Vista Desktop Scheme

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I am trying to change the backgroup colour of a Toolbar. After creation I call:

SetClassLong(hWndToolbar, GCL_HBRBACKGROUND, (LPARAM) CreateSolidBrush(RGB(0xff,0,0)));

In most cases this changes the background of the toolbar to red, BUT if the desktop theme is Vista Basic or Vista Aero it does nothing.

Any idea how to change the colour with Vista Basic/Aero selected? Thanks.

Posted 23-Nov-09 7:00am

Member 3717204

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Member 3717204 · Accepted Answer · 2009-11-26T21:51:00

Finally found the answer. Listed here for anyone searching...

The Theme needs to be turned off. To work with all versions of Windows here is the code:

void UpdateBackground(HWND hWndToolbar) {
HMODULE hTheme;
hTheme = LoadLibrary("UXTheme.DLL");
if (hTheme) {
  void(WINAPI *SetWindowTheme)(HWND,void *,void *);
  (FARPROC) SetWindowTheme = GetProcAddress(hTheme,"SetWindowTheme");
  if (SetWindowTheme) SetWindowTheme(hWndToolbar,L"",L"");
  FreeLibrary(hTheme);
}
SetClassLong(hWndToolbar, GCL_HBRBACKGROUND, (LPARAM) CreateSolidBrush(RGB(0,0,0xFF)));
}