2 files changed, 9 insertions, 2 deletions
diff --git a/src/platform_win/win_native_window.cpp b/src/platform_win/win_native_window.cpp
index ae740205..12c25674 100644
--- a/src/platform_win/win_native_window.cpp
+++ b/src/platform_win/win_native_window.cpp
@@ -4,6 +4,7 @@
 #include "cru/platform/win/win_application.hpp"
 #include "cru/platform/win/win_painter.hpp"
 #include "cru/platform/win/window_class.hpp"
+#include "cru/platform/win/window_render_target.hpp"
 #include "dpi_util.hpp"
 #include "window_manager.hpp"
 
@@ -258,10 +259,11 @@ void WinNativeWindow::OnPaintInternal() {
 
 void WinNativeWindow::OnResizeInternal(const int new_width,
                                        const int new_height) {
-  // render_target_->ResizeBuffer(new_width, new_height);
-  if (!(new_width == 0 && new_height == 0))
+  if (!(new_width == 0 && new_height == 0)) {
+    window_render_target_->ResizeBuffer(new_width, new_height);
     resize_event_.Raise(
         ui::Size{PixelToDipX(new_width), PixelToDipY(new_height)});
+  }
 }
 
 void WinNativeWindow::OnSetFocusInternal() {
diff --git a/src/platform_win/win_painter.cpp b/src/platform_win/win_painter.cpp
index b648f97d..6ce5f4de 100644
--- a/src/platform_win/win_painter.cpp
+++ b/src/platform_win/win_painter.cpp
@@ -40,6 +40,11 @@ void WinPainter::SetTransform(const Matrix& matrix) {
   render_target_->SetTransform(util::Convert(matrix));
 }
 
+void WinPainter::Clear(const ui::Color& color) {
+  assert(!IsDisposed());
+  render_target_->Clear(util::Convert(color));
+}
+
 void WinPainter::StrokeRectangle(const ui::Rect& rectangle, Brush* brush,
                                  float width) {
   assert(!IsDisposed());