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check that the bitmap is valid before getting its size to avoid asserts

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@41828 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2006-10-09 18:58:06 +00:00
parent c3d6e0aa29
commit 6003de2fe4
1 changed files with 4 additions and 2 deletions
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6
src/generic/animateg.cpp
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@ -389,9 +389,11 @@ void wxAnimationCtrl::RebuildBackingStoreUpToFrame(size_t frame)
int w = wxMin(sz.GetWidth(), winsz.GetWidth());
int h = wxMin(sz.GetHeight(), winsz.GetHeight());
if (m_backingStore.GetWidth() < w ||
m_backingStore.GetHeight() < h)
if ( !m_backingStore.Ok() ||
m_backingStore.GetWidth() < w || m_backingStore.GetHeight() < h )
{
m_backingStore.Create(w, h);
}
wxMemoryDC dc;
dc.SelectObject(m_backingStore);