Use __WINDOWS__ for OS checks and __WXMSW__ for GUI checks (round 2).

This is continuation of r70796 and serves the same purpose.

Closes #14065, #14066.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@70808 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/dirctrlg.cpp

@@ -55,7 +55,7 @@
     #include  "wx/osx/private.h"  // includes mac headers
 #endif
 
-#ifdef __WXMSW__
+#ifdef __WINDOWS__
 #include <windows.h>
 #include "wx/msw/winundef.h"
 #include "wx/volume.h"
@@ -71,7 +71,7 @@
     #include <ctype.h>
 #endif
 
-#endif
+#endif // __WINDOWS__
 
 #if defined(__OS2__) || defined(__DOS__)
     #ifdef __OS2__
@@ -310,7 +310,7 @@ int setdrive(int WXUNUSED_IN_WINCE(drive))
 #else
     newdrive[2] = wxT('\0');
 #endif
-#if defined(__WXMSW__)
+#if defined(__WINDOWS__)
     if (::SetCurrentDirectory(newdrive))
 #else
     // VA doesn't know what LPSTR is and has its own set
@@ -1170,7 +1170,7 @@ void wxGenericDirCtrl::FindChildFiles(wxTreeItemId treeid, int dirFlags, wxArray
 
     wxString dirName(data->m_path);
 
-#if defined(__WXMSW__) || defined(__OS2__)
+#if defined(__WINDOWS__) || defined(__OS2__)
     if (dirName.Last() == ':')
         dirName += wxString(wxFILE_SEP_PATH);
 #endif
@@ -1572,7 +1572,7 @@ wxImageList *wxFileIconsTable::GetSmallImageList()
     return m_smallImageList;
 }
 
-#if wxUSE_MIMETYPE && wxUSE_IMAGE && (!defined(__WXMSW__) || wxUSE_WXDIB)
+#if wxUSE_MIMETYPE && wxUSE_IMAGE && (!defined(__WINDOWS__) || wxUSE_WXDIB)
 // VS: we don't need this function w/o wxMimeTypesManager because we'll only have
 //     one icon and we won't resize it
 
@@ -1732,7 +1732,7 @@ int wxFileIconsTable::GetIconID(const wxString& extension, const wxString& mime)
     {
         m_smallImageList->Add(bmp);
     }
-#if wxUSE_IMAGE && (!defined(__WXMSW__) || wxUSE_WXDIB)
+#if wxUSE_IMAGE && (!defined(__WINDOWS__) || wxUSE_WXDIB)
     else
     {
         wxImage img = bmp.ConvertToImage();