Fix typos and wording in docs and comments

Closes #22191.

include/wx/msw/wrapwin.h

@@ -52,7 +52,7 @@
     #pragma warning(pop)
 #endif
 
-// #undef the macros defined in winsows.h which conflict with code elsewhere
+// #undef the macros defined in windows.h which conflict with code elsewhere
 #include "wx/msw/winundef.h"
 
 #endif // _WX_WRAPWIN_H_

interface/wx/app.h

@@ -789,7 +789,7 @@ public:
 
     In addition to the features provided by wxAppConsole it keeps track of
     the <em>top window</em> (see SetTopWindow()) and adds support for
-    video modes (see SetVideoMode()).
+    video modes (see SetDisplayMode()).
 
     In general, application-wide settings for GUI-only apps are accessible
     from wxApp (or from wxSystemSettings or wxSystemOptions classes).

interface/wx/datetime.h

@@ -147,8 +147,7 @@ public:
         NZST = GMT12,       //!< Standard Time
         NZDT = GMT13,       //!< Daylight Saving Time
 
-        /// Universal Coordinated Time = the new and politically correct name
-        /// for GMT.
+        /// Universal Coordinated Time
         UTC = GMT0
     };
 

interface/wx/platinfo.h

@@ -20,7 +20,7 @@
 */
 enum wxOperatingSystemId
 {
-    wxOS_UNKNOWN = 0,                 //!< returned on error
+    wxOS_UNKNOWN = 0,                 //!< Returned on error.
 
     wxOS_MAC_OS         = 1 << 0,     //!< Apple Mac OS 8/9/X with Mac paths
     wxOS_MAC_OSX_DARWIN = 1 << 1,     //!< Apple macOS with Unix paths
@@ -28,7 +28,7 @@ enum wxOperatingSystemId
     //! A combination of all @c wxOS_MAC_* values previously listed.
     wxOS_MAC = wxOS_MAC_OS|wxOS_MAC_OSX_DARWIN,
 
-    wxOS_WINDOWS_NT     = 1 << 3,     //!< Windows NT family (XP/Vista/7/8/10)
+    wxOS_WINDOWS_NT     = 1 << 3,     //!< Windows NT family (XP/Vista/7/8/10/11)
 
     //! Any Windows system, currently can be only wxOS_WINDOWS_NT.
     wxOS_WINDOWS = wxOS_WINDOWS_NT,
@@ -640,7 +640,7 @@ public:
 };
 
 /**
-    Returns true only for MSW programs running under Wine.
+    Returns @true only for MSW programs running under Wine.
 
     This function can be used to check for some functionality not implemented
     when using Wine.