diff --git a/sakura_core/uiparts/CVisualProgress.cpp b/sakura_core/uiparts/CVisualProgress.cpp
index dbee71daf5..9b252f90c6 100644
--- a/sakura_core/uiparts/CVisualProgress.cpp
+++ b/sakura_core/uiparts/CVisualProgress.cpp
@@ -95,7 +95,7 @@ void CVisualProgress::_Begin()
 	//プログレスバー
 	HWND hwndProgress = CEditWnd::getInstance()->m_cStatusBar.GetProgressHwnd();
 	if( hwndProgress ){
-		CEditWnd::getInstance()->m_cStatusBar.ShowProgressBar();
+		CEditWnd::getInstance()->m_cStatusBar.ShowProgressBar(true);
 		//範囲設定・リセット
 		Progress_SetRange( hwndProgress, 0, 101 );
 		Progress_SetPos( hwndProgress, 0);
@@ -121,7 +121,7 @@ void CVisualProgress::_End()
 	HWND hwndProgress = CEditWnd::getInstance()->m_cStatusBar.GetProgressHwnd();
 	if( hwndProgress ){
 		Progress_SetPos( hwndProgress, 0);
-		CEditWnd::getInstance()->m_cStatusBar.HideProgressBar();
+		CEditWnd::getInstance()->m_cStatusBar.ShowProgressBar(false);
 	}
 
 	//砂時計
diff --git a/sakura_core/window/CMainStatusBar.cpp b/sakura_core/window/CMainStatusBar.cpp
index a9245671a6..df6a6eff94 100644
--- a/sakura_core/window/CMainStatusBar.cpp
+++ b/sakura_core/window/CMainStatusBar.cpp
@@ -195,23 +195,18 @@ bool CMainStatusBar::SetStatusText(int nIndex, int nOption, const WCHAR* pszText
 	return bDraw;
 }
 
-void CMainStatusBar::ShowProgressBar() const {
+//! プログレスバーの表示/非表示を切り替える
+void CMainStatusBar::ShowProgressBar(bool bShow) const {
 	if (m_hwndStatusBar && m_hwndProgressBar) {
-		RECT rcProgressArea = {};
 		// プログレスバーを表示するステータスバー上の領域を取得
-		ApiWrap::StatusBar_GetRect(m_hwndStatusBar, 0, &rcProgressArea);
-		::ShowWindow(m_hwndProgressBar, SW_SHOW);
-		::InvalidateRect(m_hwndStatusBar, &rcProgressArea, TRUE);
-		::UpdateWindow(m_hwndStatusBar);
-	}
-}
-
-void CMainStatusBar::HideProgressBar() const {
-	if (m_hwndStatusBar && m_hwndProgressBar) {
 		RECT rcProgressArea = {};
-		// プログレスバーが表示されているステータスバー上の領域を取得
 		ApiWrap::StatusBar_GetRect(m_hwndStatusBar, 0, &rcProgressArea);
-		::ShowWindow(m_hwndProgressBar, SW_HIDE);
+		if (bShow) {
+			::ShowWindow(m_hwndProgressBar, SW_SHOW);
+		} else {
+			::ShowWindow(m_hwndProgressBar, SW_HIDE);
+		}
+		// プログレスバー表示領域を再描画
 		::InvalidateRect(m_hwndStatusBar, &rcProgressArea, TRUE);
 		::UpdateWindow(m_hwndStatusBar);
 	}
diff --git a/sakura_core/window/CMainStatusBar.h b/sakura_core/window/CMainStatusBar.h
index e46a449aa0..4720b5d2cd 100644
--- a/sakura_core/window/CMainStatusBar.h
+++ b/sakura_core/window/CMainStatusBar.h
@@ -56,8 +56,7 @@ class CMainStatusBar : public CDocListenerEx{
 
 	//設定
 	bool SetStatusText(int nIndex, int nOption, const WCHAR* pszText, size_t textLen = SIZE_MAX);
-	void ShowProgressBar() const;
-	void HideProgressBar() const;
+	void ShowProgressBar(bool bShow) const;
 private:
 	CEditWnd*	m_pOwner;
 	HWND		m_hwndStatusBar;