add wxHAS_MULTIPLE_FILEDLG_FILTERS symbol to be used instead of explicit tests for the platforms
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@58492 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
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		@@ -196,6 +196,7 @@ Currently the following symbols exist:
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    supports template Read() and Write() methods in wxConfig.}
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					    supports template Read() and Write() methods in wxConfig.}
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@itemdef{wxHAS_LARGE_FILES, Defined if wxFile supports files more than 4GB in size.}
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					@itemdef{wxHAS_LARGE_FILES, Defined if wxFile supports files more than 4GB in size.}
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@itemdef{wxHAS_LARGE_FFILES, Defined if wxFFile supports files more than 4GB in size.}
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					@itemdef{wxHAS_LARGE_FFILES, Defined if wxFFile supports files more than 4GB in size.}
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					@itemdef{wxHAS_MULTIPLE_FILEDLG_FILTERS, Defined if wxFileDialog supports multiple ('|'-separated) filters.}
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@itemdef{wxHAS_POWER_EVENTS, Defined if wxPowerEvent are ever generated on the current platform.}
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					@itemdef{wxHAS_POWER_EVENTS, Defined if wxPowerEvent are ever generated on the current platform.}
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@itemdef{wxHAS_RADIO_MENU_ITEMS,
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					@itemdef{wxHAS_RADIO_MENU_ITEMS,
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        Defined if the current port supports radio menu items (see wxMenu::AppendRadioItem).}
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					        Defined if the current port supports radio menu items (see wxMenu::AppendRadioItem).}
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@@ -19,6 +19,11 @@
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#include "wx/dialog.h"
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					#include "wx/dialog.h"
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#include "wx/arrstr.h"
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					#include "wx/arrstr.h"
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					// this symbol is defined for the platforms which support multiple 
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					#if defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXMAC__)
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					    #define wxHAS_MULTIPLE_FILEDLG_FILTERS
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					#endif
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//----------------------------------------------------------------------------
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					//----------------------------------------------------------------------------
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// wxFileDialog data
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					// wxFileDialog data
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//----------------------------------------------------------------------------
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					//----------------------------------------------------------------------------
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