diff --git a/redo/area_windows.c b/redo/area_windows.c
index 9fc56ba..4793138 100644
--- a/redo/area_windows.c
+++ b/redo/area_windows.c
@@ -374,21 +374,21 @@ static LRESULT CALLBACK areaWndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM
 		areaMouseEvent(hwnd, data, 1, TRUE, heldButtons, lParam);
 		return 0;
 	case WM_MBUTTONDOWN:
-		SetFocus(hwnd);		// TODO correct?
+		SetFocus(hwnd);
 		areaMouseEvent(hwnd, data, 2, FALSE, heldButtons, lParam);
 		return 0;
 	case WM_MBUTTONUP:
 		areaMouseEvent(hwnd, data, 2, TRUE, heldButtons, lParam);
 		return 0;
 	case WM_RBUTTONDOWN:
-		SetFocus(hwnd);		// TODO correct?
+		SetFocus(hwnd);
 		areaMouseEvent(hwnd, data, 3, FALSE, heldButtons, lParam);
 		return 0;
 	case WM_RBUTTONUP:
 		areaMouseEvent(hwnd, data, 3, TRUE, heldButtons, lParam);
 		return 0;
 	case WM_XBUTTONDOWN:
-		SetFocus(hwnd);		// TODO correct?
+		SetFocus(hwnd);
 		// values start at 1; we want them to start at 4
 		which = (DWORD) GET_XBUTTON_WPARAM(wParam) + 3;
 		heldButtons = (uintptr_t) GET_KEYSTATE_WPARAM(wParam);
diff --git a/redo/basicctrls_windows.c b/redo/basicctrls_windows.c
index 4c5a129..7481522 100644
--- a/redo/basicctrls_windows.c
+++ b/redo/basicctrls_windows.c
@@ -111,7 +111,7 @@ void textfieldSetAndShowInvalidBalloonTip(HWND hwnd, WCHAR *text)
 
 	ZeroMemory(&ti, sizeof (EDITBALLOONTIP));
 	ti.cbStruct = sizeof (EDITBALLOONTIP);
-	ti.pszTitle = L"Invalid Input";		// TODO verify
+	ti.pszTitle = L"Invalid Input";		// TODO this is necessary for the icon to show up; figure out some language-neutral thing
 	ti.pszText = text;
 	ti.ttiIcon = TTI_ERROR;
 	if (SendMessageW(hwnd, EM_SHOWBALLOONTIP, 0, (LPARAM) (&ti)) == FALSE)
diff --git a/redo/dialog_windows.c b/redo/dialog_windows.c
index b9d6c23..ad48cd5 100644
--- a/redo/dialog_windows.c
+++ b/redo/dialog_windows.c
@@ -8,6 +8,7 @@ static LRESULT CALLBACK dialogSubProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARA
 	switch (uMsg) {
 	case WM_COMMAND:
 		// we must re-enable other windows in the right order (see http://blogs.msdn.com/b/oldnewthing/archive/2004/02/27/81155.aspx)
+		// see http://stackoverflow.com/questions/25494914/is-there-something-like-cdn-filecancel-analogous-to-cdn-fileok-for-getting-when
 		if (HIWORD(wParam) == BN_CLICKED && LOWORD(wParam) == IDCANCEL)
 				SendMessageW(msgwin, msgEndModal, 0, 0);
 		break;		// let the dialog handle it now