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-rw-r--r--src/Fl_win32.cxx6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/Fl_win32.cxx b/src/Fl_win32.cxx
index 06e9d5eee..adaf598c6 100644
--- a/src/Fl_win32.cxx
+++ b/src/Fl_win32.cxx
@@ -90,6 +90,12 @@ void fl_cleanup_dc_list(void);
# include <wchar.h>
#endif
+// old versions of MinGW lack definition of GET_XBUTTON_WPARAM:
+
+#ifndef GET_XBUTTON_WPARAM
+#define GET_XBUTTON_WPARAM(wParam) (HIWORD(wParam))
+#endif
+
static bool is_dpi_aware = false;
extern bool fl_clipboard_notify_empty(void);