Don't use Windows handles directly in headers

[wxWidgets.git] / src / msw / combobox.cpp

diff --git a/src/msw/combobox.cpp b/src/msw/combobox.cpp
index 90f5da5765995ebdcfa0dd02bdee792cda97676a..d85ef7e8875e1ac76e16a5c1ad4d9f21bb5aada3 100644 (file)
--- a/src/msw/combobox.cpp
+++ b/src/msw/combobox.cpp
@@ -17,10 +17,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "combobox.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -259,6 +255,9 @@ WXLRESULT wxComboBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lPara
             break;
 
         case WM_SIZE:
+        // wxStaticBox can generate this message, when modifying the control's style.
+        // This causes the content of the combobox to be selected, for some reason.
+        case WM_STYLECHANGED:
             {
                 // combobox selection sometimes spontaneously changes when its
                 // size changes, restore it to the old value if necessary
@@ -325,7 +324,7 @@ bool wxComboBox::MSWProcessEditMsg(WXUINT msg, WXWPARAM wParam, WXLPARAM lParam)
     return false;
 }
 
-bool wxComboBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
+bool wxComboBox::MSWCommand(WXUINT param, WXWORD id)
 {
     wxString value;
     int sel = -1;
@@ -395,10 +394,14 @@ bool wxComboBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
                 ProcessCommand(event);
             }
             break;
+
+        default:
+            return wxChoice::MSWCommand(param, id);
     }
 
-    // there is no return value for the CBN_ notifications, so always return
-    // false from here to pass the message to DefWindowProc()
+    // let the def window proc have it by returning false, but do not pass the
+    // message we've already handled here (notably CBN_SELCHANGE) to the base
+    // class as it would generate another event for them
     return false;
 }
 
@@ -571,7 +574,7 @@ bool wxComboBox::CanUndo() const
 {
     if (!IsEditable())
         return false;
-    
+
     HWND hEditWnd = (HWND) GetEditHWND() ;
     if ( hEditWnd )
         return ::SendMessage(hEditWnd, EM_CANUNDO, 0, 0) != 0;
@@ -583,7 +586,7 @@ bool wxComboBox::CanRedo() const
 {
     if (!IsEditable())
         return false;
-    
+
     HWND hEditWnd = (HWND) GetEditHWND() ;
     if ( hEditWnd )
         return ::SendMessage(hEditWnd, EM_CANUNDO, 0, 0) != 0;
@@ -694,6 +697,10 @@ void wxComboBox::Replace(long from, long to, const wxString& value)
 
     // Paste into edit control
     SendMessage(GetHwnd(), WM_PASTE, (WPARAM)0, (LPARAM)0L);
+#else
+    wxUnusedVar(from);
+    wxUnusedVar(to);
+    wxUnusedVar(value);
 #endif
 }
 
@@ -741,6 +748,13 @@ int wxComboBox::GetSelection() const
     return wxChoice::GetSelection();
 }
 
+void wxComboBox::Clear()
+{
+    wxChoice::Clear();
+    m_selectionOld = -1;
+    m_value.clear();
+}
+
 // ----------------------------------------------------------------------------
 // standard event handling
 // ----------------------------------------------------------------------------