1 files changed, 29 insertions, 0 deletions
diff --git a/src/win/graph/direct/exception.cpp b/src/win/graph/direct/exception.cpp
new file mode 100644
index 00000000..23c267c1
--- /dev/null
+++ b/src/win/graph/direct/exception.cpp
@@ -0,0 +1,29 @@
+#include "cru/win/graph/direct/exception.hpp"
+
+#include "cru/common/format.hpp"
+
+namespace cru::platform::graph::win::direct {
+using util::Format;
+
+inline std::string HResultMakeMessage(HRESULT h_result,
+                                      const std::string_view* message) {
+  char buffer[10];
+  sprintf_s(buffer, "%#08x", h_result);
+
+  if (message)
+    return Format(
+        "An HResultError is thrown. HRESULT: {}.\nAdditional message: {}\n",
+        buffer, *message);
+  else
+    return Format("An HResultError is thrown. HRESULT: {}.\n", buffer);
+}
+
+HResultError::HResultError(HRESULT h_result)
+    : PlatformException(HResultMakeMessage(h_result, nullptr)),
+      h_result_(h_result) {}
+
+HResultError::HResultError(HRESULT h_result,
+                           const std::string_view& additional_message)
+    : PlatformException(HResultMakeMessage(h_result, &additional_message)),
+      h_result_(h_result) {}
+}  // namespace cru::platform::graph::win::direct