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Avoid crashes in wxMSW when using buttons without valid parent.

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Child controls such as buttons are supposed to always have a valid parent but
if, somehow, they don't, still don't crash in wxMSW button code but just
trigger an assert failure instead of unavailable button top level parent
instead.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@70935 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2012-03-18 01:35:53 +00:00
parent 37e4846697
commit 76cae7cbc2
1 changed files with 2 additions and 2 deletions
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4
src/msw/button.cpp
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@@ -277,7 +277,7 @@ static wxTopLevelWindow *GetTLWParentIfNotBeingDeleted(wxWindow *win)
// set this button as being currently default
void wxButton::SetTmpDefault()
{
wxTopLevelWindow * const tlw = GetTLWParentIfNotBeingDeleted(GetParent());
wxTopLevelWindow * const tlw = GetTLWParentIfNotBeingDeleted(this);
if ( !tlw )
return;
@@ -291,7 +291,7 @@ void wxButton::SetTmpDefault()
// unset this button as currently default, it may still stay permanent default
void wxButton::UnsetTmpDefault()
{
wxTopLevelWindow * const tlw = GetTLWParentIfNotBeingDeleted(GetParent());
wxTopLevelWindow * const tlw = GetTLWParentIfNotBeingDeleted(this);
if ( !tlw )
return;