diff --git a/src/FFmpeg.cpp b/src/FFmpeg.cpp
index 531881944..484dd6b8e 100644
--- a/src/FFmpeg.cpp
+++ b/src/FFmpeg.cpp
@@ -839,7 +839,7 @@ bool FFmpegLibs::ValidLibsLoaded()
    return mLibsLoaded;
 }
 
-bool FFmpegLibs::InitLibs(wxString libpath_format, bool showerr)
+bool FFmpegLibs::InitLibs(wxString libpath_format, bool WXUNUSED(showerr))
 {
 #if !defined(DISABLE_DYNAMIC_LOADING_FFMPEG)
    FreeLibs();
diff --git a/src/TrackArtist.cpp b/src/TrackArtist.cpp
index 4c10d5977..99a992e33 100644
--- a/src/TrackArtist.cpp
+++ b/src/TrackArtist.cpp
@@ -1019,7 +1019,7 @@ void TrackArtist::DrawMinMaxRMS(wxDC &dc, const wxRect &r, const double env[],
 void TrackArtist::DrawMinMaxRMS(wxDC &dc, const wxRect &r, const double env[],
                                 float zoomMin, float zoomMax, bool dB,
                                 const float min[], const float max[], const float rms[],
-                                const int bl[], bool showProgress, bool muted)
+                                const int bl[], bool WXUNUSED(showProgress), bool muted)
 #endif
 {
    // Display a line representing the
diff --git a/src/TrackPanel.cpp b/src/TrackPanel.cpp
index 0306dc53e..0f64304bc 100644
--- a/src/TrackPanel.cpp
+++ b/src/TrackPanel.cpp
@@ -362,7 +362,7 @@ BEGIN_EVENT_TABLE(TrackPanel, wxWindow)
 END_EVENT_TABLE()
 
 /// Makes a cursor from an XPM, uses CursorId as a fallback.
-static wxCursor * MakeCursor( int CursorId, const char * pXpm[36],  int HotX, int HotY )
+static wxCursor * MakeCursor( int WXUNUSED(CursorId), const char * pXpm[36],  int HotX, int HotY )
 {
    wxCursor * pCursor;
 
diff --git a/src/TrackPanelAx.cpp b/src/TrackPanelAx.cpp
index 626cf8a77..c271e5ada 100644
--- a/src/TrackPanelAx.cpp
+++ b/src/TrackPanelAx.cpp
@@ -218,7 +218,7 @@ wxAccStatus TrackPanelAx::GetChildCount( int* childCount )
 // The retrieved string describes the action that is performed on an object,
 // not what the object does as a result. For example, a toolbar button that prints
 // a document has a default action of "Press" rather than "Prints the current document."
-wxAccStatus TrackPanelAx::GetDefaultAction( int childId, wxString *actionName )
+wxAccStatus TrackPanelAx::GetDefaultAction( int WXUNUSED(childId), wxString *actionName )
 {
    actionName->Clear();
 
@@ -226,7 +226,7 @@ wxAccStatus TrackPanelAx::GetDefaultAction( int childId, wxString *actionName )
 }
 
 // Returns the description for this object or a child.
-wxAccStatus TrackPanelAx::GetDescription( int childId, wxString *description )
+wxAccStatus TrackPanelAx::GetDescription( int WXUNUSED(childId), wxString *description )
 {
    description->Clear();
 
@@ -234,7 +234,7 @@ wxAccStatus TrackPanelAx::GetDescription( int childId, wxString *description )
 }
 
 // Returns help text for this object or a child, similar to tooltip text.
-wxAccStatus TrackPanelAx::GetHelpText( int childId, wxString *helpText )
+wxAccStatus TrackPanelAx::GetHelpText( int WXUNUSED(childId), wxString *helpText )
 {
    helpText->Clear();
 
@@ -243,7 +243,7 @@ wxAccStatus TrackPanelAx::GetHelpText( int childId, wxString *helpText )
 
 // Returns the keyboard shortcut for this object or child.
 // Return e.g. ALT+K
-wxAccStatus TrackPanelAx::GetKeyboardShortcut( int childId, wxString *shortcut )
+wxAccStatus TrackPanelAx::GetKeyboardShortcut( int WXUNUSED(childId), wxString *shortcut )
 {
    shortcut->Clear();
 
@@ -377,7 +377,7 @@ wxAccStatus TrackPanelAx::GetRole( int childId, wxAccRole* role )
 // - an integer representing the selected child element,
 //   or 0 if this object is selected (GetType() == wxT("long"))
 // - a "void*" pointer to a wxAccessible child object
-wxAccStatus TrackPanelAx::GetSelections( wxVariant *selections )
+wxAccStatus TrackPanelAx::GetSelections( wxVariant * WXUNUSED(selections) )
 {
    return wxACC_NOT_IMPLEMENTED;
 }
diff --git a/src/effects/Equalization.cpp b/src/effects/Equalization.cpp
index c96283fe2..01a941bb0 100644
--- a/src/effects/Equalization.cpp
+++ b/src/effects/Equalization.cpp
@@ -3319,7 +3319,7 @@ wxAccStatus SliderAx::GetChildCount(int* childCount)
 // The retrieved string describes the action that is performed on an object,
 // not what the object does as a result. For example, a toolbar button that prints
 // a document has a default action of "Press" rather than "Prints the current document."
-wxAccStatus SliderAx::GetDefaultAction( int childId, wxString *actionName )
+wxAccStatus SliderAx::GetDefaultAction( int WXUNUSED(childId), wxString *actionName )
 {
    actionName->Clear();
 
@@ -3327,7 +3327,7 @@ wxAccStatus SliderAx::GetDefaultAction( int childId, wxString *actionName )
 }
 
 // Returns the description for this object or a child.
-wxAccStatus SliderAx::GetDescription( int childId, wxString *description )
+wxAccStatus SliderAx::GetDescription( int WXUNUSED(childId), wxString *description )
 {
    description->Clear();
 
@@ -3347,7 +3347,7 @@ wxAccStatus SliderAx::GetFocus(int* childId, wxAccessible** child)
 }
 
 // Returns help text for this object or a child, similar to tooltip text.
-wxAccStatus SliderAx::GetHelpText( int childId, wxString *helpText )
+wxAccStatus SliderAx::GetHelpText( int WXUNUSED(childId), wxString *helpText )
 {
    helpText->Clear();
 
@@ -3356,7 +3356,7 @@ wxAccStatus SliderAx::GetHelpText( int childId, wxString *helpText )
 
 // Returns the keyboard shortcut for this object or child.
 // Return e.g. ALT+K
-wxAccStatus SliderAx::GetKeyboardShortcut( int childId, wxString *shortcut )
+wxAccStatus SliderAx::GetKeyboardShortcut( int WXUNUSED(childId), wxString *shortcut )
 {
    shortcut->Clear();
 
@@ -3365,7 +3365,7 @@ wxAccStatus SliderAx::GetKeyboardShortcut( int childId, wxString *shortcut )
 
 // Returns the rectangle for this object (id = 0) or a child element (id > 0).
 // rect is in screen coordinates.
-wxAccStatus SliderAx::GetLocation( wxRect& rect, int elementId )
+wxAccStatus SliderAx::GetLocation( wxRect& rect, int WXUNUSED(elementId) )
 {
    wxSliderBugfix *s = wxDynamicCast( GetWindow(), wxSliderBugfix );
 
@@ -3376,7 +3376,7 @@ wxAccStatus SliderAx::GetLocation( wxRect& rect, int elementId )
 }
 
 // Gets the name of the specified object.
-wxAccStatus SliderAx::GetName(int childId, wxString* name)
+wxAccStatus SliderAx::GetName(int WXUNUSED(childId), wxString* name)
 {
    wxSliderBugfix *s = wxDynamicCast( GetWindow(), wxSliderBugfix );
 
@@ -3415,7 +3415,7 @@ wxAccStatus SliderAx::GetRole(int childId, wxAccRole* role)
 // - an integer representing the selected child element,
 //   or 0 if this object is selected (GetType() == wxT("long"))
 // - a "void*" pointer to a wxAccessible child object
-wxAccStatus SliderAx::GetSelections( wxVariant *selections )
+wxAccStatus SliderAx::GetSelections( wxVariant * WXUNUSED(selections) )
 {
    return wxACC_NOT_IMPLEMENTED;
 }
diff --git a/src/widgets/AButton.cpp b/src/widgets/AButton.cpp
index 42f242a55..e3c4ba5cc 100644
--- a/src/widgets/AButton.cpp
+++ b/src/widgets/AButton.cpp
@@ -432,7 +432,7 @@ AButtonAx::~AButtonAx()
 // or > 0 (the action for a child).
 // Return wxACC_NOT_SUPPORTED if there is no default action for this
 // window (e.g. an edit control).
-wxAccStatus AButtonAx::DoDefaultAction(int childId)
+wxAccStatus AButtonAx::DoDefaultAction(int WXUNUSED(childId))
 {
    AButton *ab = wxDynamicCast( GetWindow(), AButton );
 
@@ -476,7 +476,7 @@ wxAccStatus AButtonAx::GetChildCount(int* childCount)
 // object, not what the object does as a result. For example, a
 // toolbar button that prints a document has a default action of
 // "Press" rather than "Prints the current document."
-wxAccStatus AButtonAx::GetDefaultAction(int childId, wxString* actionName)
+wxAccStatus AButtonAx::GetDefaultAction(int WXUNUSED(childId), wxString* actionName)
 {
    *actionName = _( "Press" );
 
@@ -484,7 +484,7 @@ wxAccStatus AButtonAx::GetDefaultAction(int childId, wxString* actionName)
 }
 
 // Returns the description for this object or a child.
-wxAccStatus AButtonAx::GetDescription( int childId, wxString *description )
+wxAccStatus AButtonAx::GetDescription( int WXUNUSED(childId), wxString *description )
 {
    description->Clear();
 
@@ -504,7 +504,7 @@ wxAccStatus AButtonAx::GetFocus(int* childId, wxAccessible** child)
 }
 
 // Returns help text for this object or a child, similar to tooltip text.
-wxAccStatus AButtonAx::GetHelpText( int childId, wxString *helpText )
+wxAccStatus AButtonAx::GetHelpText( int WXUNUSED(childId), wxString *helpText )
 {
 #if wxUSE_TOOLTIPS // Not available in wxX11
    AButton *ab = wxDynamicCast( GetWindow(), AButton );
@@ -525,7 +525,7 @@ wxAccStatus AButtonAx::GetHelpText( int childId, wxString *helpText )
 
 // Returns the keyboard shortcut for this object or child.
 // Return e.g. ALT+K
-wxAccStatus AButtonAx::GetKeyboardShortcut( int childId, wxString *shortcut )
+wxAccStatus AButtonAx::GetKeyboardShortcut( int WXUNUSED(childId), wxString *shortcut )
 {
    shortcut->Clear();
 
@@ -534,7 +534,7 @@ wxAccStatus AButtonAx::GetKeyboardShortcut( int childId, wxString *shortcut )
 
 // Returns the rectangle for this object (id = 0) or a child element (id > 0).
 // rect is in screen coordinates.
-wxAccStatus AButtonAx::GetLocation( wxRect& rect, int elementId )
+wxAccStatus AButtonAx::GetLocation( wxRect& rect, int WXUNUSED(elementId) )
 {
    AButton *ab = wxDynamicCast( GetWindow(), AButton );
 
@@ -545,7 +545,7 @@ wxAccStatus AButtonAx::GetLocation( wxRect& rect, int elementId )
 }
 
 // Gets the name of the specified object.
-wxAccStatus AButtonAx::GetName(int childId, wxString* name)
+wxAccStatus AButtonAx::GetName(int WXUNUSED(childId), wxString* name)
 {
    AButton *ab = wxDynamicCast( GetWindow(), AButton );
 
@@ -564,7 +564,7 @@ wxAccStatus AButtonAx::GetName(int childId, wxString* name)
 }
 
 // Returns a role constant.
-wxAccStatus AButtonAx::GetRole(int childId, wxAccRole* role)
+wxAccStatus AButtonAx::GetRole(int WXUNUSED(childId), wxAccRole* role)
 {
    *role = wxROLE_SYSTEM_PUSHBUTTON;
 
@@ -579,13 +579,13 @@ wxAccStatus AButtonAx::GetRole(int childId, wxAccRole* role)
 // - an integer representing the selected child element,
 //   or 0 if this object is selected (GetType() == wxT("long"))
 // - a "void*" pointer to a wxAccessible child object
-wxAccStatus AButtonAx::GetSelections( wxVariant *selections )
+wxAccStatus AButtonAx::GetSelections( wxVariant * WXUNUSED(selections) )
 {
    return wxACC_NOT_IMPLEMENTED;
 }
 
 // Returns a state constant.
-wxAccStatus AButtonAx::GetState(int childId, long* state)
+wxAccStatus AButtonAx::GetState(int WXUNUSED(childId), long* state)
 {
    AButton *ab = wxDynamicCast( GetWindow(), AButton );
 
@@ -617,7 +617,7 @@ wxAccStatus AButtonAx::GetState(int childId, long* state)
 
 // Returns a localized string representing the value for the object
 // or child.
-wxAccStatus AButtonAx::GetValue(int childId, wxString* strValue)
+wxAccStatus AButtonAx::GetValue(int WXUNUSED(childId), wxString* WXUNUSED(strValue))
 {
    return wxACC_NOT_SUPPORTED;
 }
diff --git a/src/widgets/ASlider.cpp b/src/widgets/ASlider.cpp
index 512100f22..b3a79cd7e 100644
--- a/src/widgets/ASlider.cpp
+++ b/src/widgets/ASlider.cpp
@@ -1649,7 +1649,7 @@ wxAccStatus ASliderAx::GetChildCount(int* childCount)
 // The retrieved string describes the action that is performed on an object,
 // not what the object does as a result. For example, a toolbar button that prints
 // a document has a default action of "Press" rather than "Prints the current document."
-wxAccStatus ASliderAx::GetDefaultAction( int childId, wxString *actionName )
+wxAccStatus ASliderAx::GetDefaultAction( int WXUNUSED(childId), wxString *actionName )
 {
    actionName->Clear();
 
@@ -1657,7 +1657,7 @@ wxAccStatus ASliderAx::GetDefaultAction( int childId, wxString *actionName )
 }
 
 // Returns the description for this object or a child.
-wxAccStatus ASliderAx::GetDescription( int childId, wxString *description )
+wxAccStatus ASliderAx::GetDescription( int WXUNUSED(childId), wxString *description )
 {
    description->Clear();
 
@@ -1677,7 +1677,7 @@ wxAccStatus ASliderAx::GetFocus(int* childId, wxAccessible** child)
 }
 
 // Returns help text for this object or a child, similar to tooltip text.
-wxAccStatus ASliderAx::GetHelpText( int childId, wxString *helpText )
+wxAccStatus ASliderAx::GetHelpText( int WXUNUSED(childId), wxString *helpText )
 {
    helpText->Clear();
 
@@ -1686,7 +1686,7 @@ wxAccStatus ASliderAx::GetHelpText( int childId, wxString *helpText )
 
 // Returns the keyboard shortcut for this object or child.
 // Return e.g. ALT+K
-wxAccStatus ASliderAx::GetKeyboardShortcut( int childId, wxString *shortcut )
+wxAccStatus ASliderAx::GetKeyboardShortcut( int WXUNUSED(childId), wxString *shortcut )
 {
    shortcut->Clear();
 
@@ -1695,7 +1695,7 @@ wxAccStatus ASliderAx::GetKeyboardShortcut( int childId, wxString *shortcut )
 
 // Returns the rectangle for this object (id = 0) or a child element (id > 0).
 // rect is in screen coordinates.
-wxAccStatus ASliderAx::GetLocation( wxRect& rect, int elementId )
+wxAccStatus ASliderAx::GetLocation( wxRect& rect, int WXUNUSED(elementId) )
 {
    ASlider *as = wxDynamicCast( GetWindow(), ASlider );
 
@@ -1706,7 +1706,7 @@ wxAccStatus ASliderAx::GetLocation( wxRect& rect, int elementId )
 }
 
 // Gets the name of the specified object.
-wxAccStatus ASliderAx::GetName(int childId, wxString* name)
+wxAccStatus ASliderAx::GetName(int WXUNUSED(childId), wxString* name)
 {
    ASlider *as = wxDynamicCast( GetWindow(), ASlider );
 
@@ -1745,7 +1745,7 @@ wxAccStatus ASliderAx::GetRole(int childId, wxAccRole* role)
 // - an integer representing the selected child element,
 //   or 0 if this object is selected (GetType() == wxT("long"))
 // - a "void*" pointer to a wxAccessible child object
-wxAccStatus ASliderAx::GetSelections( wxVariant *selections )
+wxAccStatus ASliderAx::GetSelections( wxVariant * WXUNUSED(selections) )
 {
    return wxACC_NOT_IMPLEMENTED;
 }
diff --git a/src/widgets/Grid.cpp b/src/widgets/Grid.cpp
index 0fb446e09..e82328db0 100644
--- a/src/widgets/Grid.cpp
+++ b/src/widgets/Grid.cpp
@@ -665,7 +665,7 @@ wxAccStatus GridAx::GetChildCount(int *childCount)
 // The retrieved string describes the action that is performed on an object,
 // not what the object does as a result. For example, a toolbar button that prints
 // a document has a default action of "Press" rather than "Prints the current document."
-wxAccStatus GridAx::GetDefaultAction(int childId, wxString *actionName)
+wxAccStatus GridAx::GetDefaultAction(int WXUNUSED(childId), wxString *actionName)
 {
    actionName->Clear();
 
@@ -673,7 +673,7 @@ wxAccStatus GridAx::GetDefaultAction(int childId, wxString *actionName)
 }
 
 // Returns the description for this object or a child.
-wxAccStatus GridAx::GetDescription(int childId, wxString *description)
+wxAccStatus GridAx::GetDescription(int WXUNUSED(childId), wxString *description)
 {
    description->Clear();
 
@@ -681,7 +681,7 @@ wxAccStatus GridAx::GetDescription(int childId, wxString *description)
 }
 
 // Returns help text for this object or a child, similar to tooltip text.
-wxAccStatus GridAx::GetHelpText(int childId, wxString *helpText)
+wxAccStatus GridAx::GetHelpText(int WXUNUSED(childId), wxString *helpText)
 {
    helpText->Clear();
 
@@ -690,7 +690,7 @@ wxAccStatus GridAx::GetHelpText(int childId, wxString *helpText)
 
 // Returns the keyboard shortcut for this object or child.
 // Return e.g. ALT+K
-wxAccStatus GridAx::GetKeyboardShortcut(int childId, wxString *shortcut)
+wxAccStatus GridAx::GetKeyboardShortcut(int WXUNUSED(childId), wxString *shortcut)
 {
    shortcut->Clear();
 
@@ -763,7 +763,7 @@ wxAccStatus GridAx::GetName(int childId, wxString *name)
    return wxACC_OK;
 }
 
-wxAccStatus GridAx::GetParent(wxAccessible **parent)
+wxAccStatus GridAx::GetParent(wxAccessible ** WXUNUSED(parent))
 {
    return wxACC_NOT_IMPLEMENTED;
 }
@@ -795,7 +795,7 @@ wxAccStatus GridAx::GetRole(int childId, wxAccRole *role)
 // - an integer representing the selected child element,
 //   or 0 if this object is selected (GetType() == wxT("long"))
 // - a "void*" pointer to a wxAccessible child object
-wxAccStatus GridAx::GetSelections(wxVariant *selections)
+wxAccStatus GridAx::GetSelections(wxVariant * WXUNUSED(selections))
 {
    return wxACC_NOT_IMPLEMENTED;
 }
@@ -880,7 +880,7 @@ wxAccStatus GridAx::Select(int childId, wxAccSelectionFlags selectFlags)
 // If childId is 0 and child is NULL, no object in
 // this subhierarchy has the focus.
 // If this object has the focus, child should be 'this'.
-wxAccStatus GridAx::GetFocus(int *childId, wxAccessible **child)
+wxAccStatus GridAx::GetFocus(int * WXUNUSED(childId), wxAccessible **child)
 {
    *child = this;
 
diff --git a/src/widgets/HtmlWindow.cpp b/src/widgets/HtmlWindow.cpp
index 9cf1fff12..ba430bcab 100644
--- a/src/widgets/HtmlWindow.cpp
+++ b/src/widgets/HtmlWindow.cpp
@@ -95,7 +95,7 @@ wxAccStatus HtmlWindowAx::GetChildCount(int* childCount)
 // object, not what the object does as a result. For example, a
 // toolbar button that prints a document has a default action of
 // "Press" rather than "Prints the current document."
-wxAccStatus HtmlWindowAx::GetDefaultAction(int childId, wxString* actionName)
+wxAccStatus HtmlWindowAx::GetDefaultAction(int WXUNUSED(childId), wxString* actionName)
 {
    actionName->Clear();
 
@@ -103,7 +103,7 @@ wxAccStatus HtmlWindowAx::GetDefaultAction(int childId, wxString* actionName)
 }
 
 // Returns the description for this object or a child.
-wxAccStatus HtmlWindowAx::GetDescription( int childId, wxString *description )
+wxAccStatus HtmlWindowAx::GetDescription( int WXUNUSED(childId), wxString *description )
 {
    description->Clear();
 
@@ -123,7 +123,7 @@ wxAccStatus HtmlWindowAx::GetFocus(int* childId, wxAccessible** child)
 }
 
 // Returns help text for this object or a child, similar to tooltip text.
-wxAccStatus HtmlWindowAx::GetHelpText( int childId, wxString *helpText )
+wxAccStatus HtmlWindowAx::GetHelpText( int WXUNUSED(childId), wxString *helpText )
 {
    helpText->Clear();
 
@@ -132,7 +132,7 @@ wxAccStatus HtmlWindowAx::GetHelpText( int childId, wxString *helpText )
 
 // Returns the keyboard shortcut for this object or child.
 // Return e.g. ALT+K
-wxAccStatus HtmlWindowAx::GetKeyboardShortcut( int childId, wxString *shortcut )
+wxAccStatus HtmlWindowAx::GetKeyboardShortcut( int WXUNUSED(childId), wxString *shortcut )
 {
    shortcut->Clear();
 
@@ -141,7 +141,7 @@ wxAccStatus HtmlWindowAx::GetKeyboardShortcut( int childId, wxString *shortcut )
 
 // Returns the rectangle for this object (id = 0) or a child element (id > 0).
 // rect is in screen coordinates.
-wxAccStatus HtmlWindowAx::GetLocation( wxRect& rect, int elementId )
+wxAccStatus HtmlWindowAx::GetLocation( wxRect& rect, int WXUNUSED(elementId) )
 {
    HtmlWindow *hw = wxDynamicCast( GetWindow(), HtmlWindow );
 
@@ -152,7 +152,7 @@ wxAccStatus HtmlWindowAx::GetLocation( wxRect& rect, int elementId )
 }
 
 // Gets the name of the specified object.
-wxAccStatus HtmlWindowAx::GetName(int childId, wxString* name)
+wxAccStatus HtmlWindowAx::GetName(int WXUNUSED(childId), wxString* name)
 {
    HtmlWindow *hw = wxDynamicCast( GetWindow(), HtmlWindow );
 
@@ -166,7 +166,7 @@ wxAccStatus HtmlWindowAx::GetName(int childId, wxString* name)
 }
 
 // Returns a role constant.
-wxAccStatus HtmlWindowAx::GetRole(int childId, wxAccRole* role)
+wxAccStatus HtmlWindowAx::GetRole(int WXUNUSED(childId), wxAccRole* role)
 {
    *role = wxROLE_SYSTEM_STATICTEXT;
 
@@ -181,13 +181,13 @@ wxAccStatus HtmlWindowAx::GetRole(int childId, wxAccRole* role)
 // - an integer representing the selected child element,
 //   or 0 if this object is selected (GetType() == wxT("long"))
 // - a "void*" pointer to a wxAccessible child object
-wxAccStatus HtmlWindowAx::GetSelections( wxVariant *selections )
+wxAccStatus HtmlWindowAx::GetSelections( wxVariant * WXUNUSED(selections) )
 {
    return wxACC_NOT_IMPLEMENTED;
 }
 
 // Returns a state constant.
-wxAccStatus HtmlWindowAx::GetState(int childId, long* state)
+wxAccStatus HtmlWindowAx::GetState(int WXUNUSED(childId), long* state)
 {
    HtmlWindow *hw = wxDynamicCast( GetWindow(), HtmlWindow );
 
@@ -200,7 +200,7 @@ wxAccStatus HtmlWindowAx::GetState(int childId, long* state)
 
 // Returns a localized string representing the value for the object
 // or child.
-wxAccStatus HtmlWindowAx::GetValue(int childId, wxString* strValue)
+wxAccStatus HtmlWindowAx::GetValue(int WXUNUSED(childId), wxString* strValue)
 {
    HtmlWindow *hw = wxDynamicCast( GetWindow(), HtmlWindow );
 
diff --git a/src/widgets/TimeTextCtrl.cpp b/src/widgets/TimeTextCtrl.cpp
index cd53bfe90..0bfcc3c09 100644
--- a/src/widgets/TimeTextCtrl.cpp
+++ b/src/widgets/TimeTextCtrl.cpp
@@ -1682,13 +1682,13 @@ wxAccStatus TimeTextCtrlAx::GetRole(int WXUNUSED(childId), wxAccRole *role)
 // - an integer representing the selected child element,
 //   or 0 if this object is selected (GetType() == wxT("long"))
 // - a "void*" pointer to a wxAccessible child object
-wxAccStatus TimeTextCtrlAx::GetSelections(wxVariant *selections)
+wxAccStatus TimeTextCtrlAx::GetSelections(wxVariant * WXUNUSED(selections))
 {
    return wxACC_NOT_IMPLEMENTED;
 }
 
 // Returns a state constant.
-wxAccStatus TimeTextCtrlAx::GetState(int childId, long *state)
+wxAccStatus TimeTextCtrlAx::GetState(int WXUNUSED(childId), long *state)
 {
    *state = wxACC_STATE_SYSTEM_FOCUSABLE;
    *state |= (mCtrl == wxWindow::FindFocus() ? wxACC_STATE_SYSTEM_FOCUSED : 0);
@@ -1698,7 +1698,7 @@ wxAccStatus TimeTextCtrlAx::GetState(int childId, long *state)
 
 // Returns a localized string representing the value for the object
 // or child.
-wxAccStatus TimeTextCtrlAx::GetValue(int childId, wxString *strValue)
+wxAccStatus TimeTextCtrlAx::GetValue(int WXUNUSED(childId), wxString * WXUNUSED(strValue))
 {
    return wxACC_NOT_IMPLEMENTED;
 }