Fix bug in EBMessageBox.

g_hWnd being null did no harm, but g_window being null...

1 files changed, 3 insertions, 2 deletions

diff --git a/c/win32.cpp b/c/win32.cpp
index f06f96c..ce1fc9d 100644
--- a/c/win32.cpp
+++ b/c/win32.cpp
@@ -88,8 +88,9 @@ static void CenterNextWindow(HWND hWnd)
 int EBMessageBox(const std::wstring_view text, const std::wstring_view caption, const UINT uType)
 {
 	extern Window* g_window;
-	CenterNextWindow(g_window->hWnd);
-	return MessageBox(g_window->hWnd, text.data(), caption.data(), uType);
+	const HWND hWnd = g_window? g_window->hWnd: nullptr;
+	CenterNextWindow(hWnd);
+	return MessageBox(hWnd, text.data(), caption.data(), uType);
 }
 
 void ShowException(const wchar_t* const fmt, const wchar_t* const title, const UINT uType) noexcept