Replaced Ok() occurrences with IsOk() throughout trunk.

Additionally renamed wxOSX' private wxNativePrinterDC::Ok() function to IsOk().

Didn't deprecate the various Ok() functions: given the amount of changes already introduced in 3.0 a trivial one like this seems more suitable for after 3.0.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@67681 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/checkbox.cpp

@@ -260,7 +260,7 @@ bool wxCheckBox::SetForegroundColour(const wxColour& colour)
     // the only way to change the checkbox foreground colour under Windows XP
     // is to owner draw it
     if ( wxUxThemeEngine::GetIfActive() )
-        MakeOwnerDrawn(colour.Ok());
+        MakeOwnerDrawn(colour.IsOk());
 
     return true;
 }