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Check for double creation (patch #12434)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@66914 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Julian Smart
2011-02-16 21:44:15 +00:00
parent 6341be5072
commit 26fe8aa995
1 changed files with 10 additions and 0 deletions
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10
src/msw/window.cpp
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@@ -3579,6 +3579,16 @@ bool wxWindowMSW::MSWCreate(const wxChar *wclass,
WXDWORD style, WXDWORD style,
WXDWORD extendedStyle) WXDWORD extendedStyle)
{ {
// check a common bug in the user code: if the window is created with a
// non-default ctor and Create() is called too, we'd create 2 HWND for a
// single wxWindow object and this results in all sorts of trouble,
// especially for wxTLWs
wxCHECK_MSG( !m_hWnd, true, wxT("window can't be recreated") );
// this can happen if this function is called using the return value of
// wxApp::GetRegisteredClassName() which failed
wxCHECK_MSG( wclass, false, wxT("failed to register window class?") );
// choose the position/size for the new window // choose the position/size for the new window
int x, y, w, h; int x, y, w, h;
(void)MSWGetCreateWindowCoords(pos, size, x, y, w, h); (void)MSWGetCreateWindowCoords(pos, size, x, y, w, h);