fixed crash with ownerdrawn menu items accelerators (Perry Miller)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@36863 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/docs/changes.txt b/docs/changes.txt
index 328ed2c45eff3c6a871d9a9df7433dc21ef7c8f2..a19651b1050b7549aebb4948151afe13f39fcd94 100644 (file)
--- a/docs/changes.txt
+++ b/docs/changes.txt
@@ -57,6 +57,7 @@ All (GUI):
 
 wxMSW:
 
+- Fixed crash with ownerdrawn menu items accelerators (Perry Miller)
 - wxFileDialog respects absence of wxCHANGE_DIR flag under NT (Brad Anderson).
 - Switching page of a hidden notebook doesn't lose focus (Jamie Gadd).
 - Removed wxImageList *GetImageList(int) const.

diff --git a/src/msw/window.cpp b/src/msw/window.cpp
index a50831dea88e8bdbafc35d81a37643493542e479..140dd8f88dcab913584441d1404f47fba1f1663c 100644 (file)
--- a/src/msw/window.cpp
+++ b/src/msw/window.cpp
@@ -4893,12 +4893,20 @@ int wxWindowMSW::HandleMenuChar(int WXUNUSED_IN_WINCE(chAccel),
     MENUITEMINFO mii;
     wxZeroMemory(mii);
     mii.cbSize = sizeof(MENUITEMINFO);
+
+    // we could use MIIM_FTYPE here as we only need to know if the item is
+    // ownerdrawn or not and not dwTypeData which MIIM_TYPE also returns, but
+    // MIIM_FTYPE is not supported under Win95
     mii.fMask = MIIM_TYPE | MIIM_DATA;
 
     // find if we have this letter in any owner drawn item
     const int count = ::GetMenuItemCount(hmenu);
     for ( int i = 0; i < count; i++ )
     {
+        // previous loop iteration could modify it, reset it back before
+        // calling GetMenuItemInfo() to prevent it from overflowing dwTypeData
+        mii.cch = 0;
+
         if ( ::GetMenuItemInfo(hmenu, i, TRUE, &mii) )
         {
             if ( mii.fType == MFT_OWNERDRAW )
@@ -4936,8 +4944,7 @@ int wxWindowMSW::HandleMenuChar(int WXUNUSED_IN_WINCE(chAccel),
         }
         else // failed to get the menu text?
         {
-            // it's not fatal, so don't show error, but still log
-            // it
+            // it's not fatal, so don't show error, but still log it
             wxLogLastError(_T("GetMenuItemInfo"));
         }
     }