Replace more static casts in FWL (part 3)

xfa/src/fwl/src/lightwidget/caret.cpp

Index: xfa/src/fwl/src/lightwidget/caret.cpp
diff --git a/xfa/src/fwl/src/lightwidget/caret.cpp b/xfa/src/fwl/src/lightwidget/caret.cpp
index 48bc18a82d65eb41624abab79458a27da4ddb34a..c4edb441151db0896b630b2f1491bc0fc5185fa6 100644
--- a/xfa/src/fwl/src/lightwidget/caret.cpp
+++ b/xfa/src/fwl/src/lightwidget/caret.cpp
@@ -14,27 +14,26 @@ FWL_ERR CFWL_Caret::Initialize(const CFWL_WidgetProperties* pProperties) {
   if (pProperties) {
     *m_pProperties = *pProperties;
   }
-  m_pIface = IFWL_Caret::Create();
-  FWL_ERR ret =
-      ((IFWL_Caret*)m_pIface)
-          ->Initialize(m_pProperties->MakeWidgetImpProperties(nullptr),
-                       nullptr);
+  IFWL_Caret* pCaret = IFWL_Caret::Create();
+  m_pIface = pCaret;
+  FWL_ERR ret = pCaret->Initialize(
+      m_pProperties->MakeWidgetImpProperties(nullptr), nullptr);
   if (ret == FWL_ERR_Succeeded) {
     CFWL_Widget::Initialize();
   }
   return ret;
 }
 FWL_ERR CFWL_Caret::ShowCaret(FX_BOOL bFlag) {
-  return ((IFWL_Caret*)m_pIface)->ShowCaret(bFlag);
+  return static_cast<IFWL_Caret*>(m_pIface)->ShowCaret(bFlag);
 }
 FWL_ERR CFWL_Caret::GetFrequency(FX_DWORD& elapse) {
-  return ((IFWL_Caret*)m_pIface)->GetFrequency(elapse);
+  return static_cast<IFWL_Caret*>(m_pIface)->GetFrequency(elapse);
 }
 FWL_ERR CFWL_Caret::SetFrequency(FX_DWORD elapse) {
-  return ((IFWL_Caret*)m_pIface)->SetFrequency(elapse);
+  return static_cast<IFWL_Caret*>(m_pIface)->SetFrequency(elapse);
 }
 FWL_ERR CFWL_Caret::SetColor(CFX_Color crFill) {
-  return ((IFWL_Caret*)m_pIface)->SetColor(crFill);
+  return static_cast<IFWL_Caret*>(m_pIface)->SetColor(crFill);
 }
 CFWL_Caret::CFWL_Caret() {}
 CFWL_Caret::~CFWL_Caret() {}