minor optimization

1 files changed, 2 insertions, 2 deletions

diff --git a/src/WinButton.cc b/src/WinButton.cc
index 33995b4..36639f5 100644
--- a/src/WinButton.cc
+++ b/src/WinButton.cc
@@ -312,7 +312,7 @@ void WinButton::clear() {
     FbTk::Button::clear();
     
     // ensure the m_listen_to has actually a client
-    if (m_type == MENUICON && m_listen_to.numClients() && (
+    if (m_type == MENUICON && !m_listen_to.empty() && (
         !m_icon_pixmap.drawable() ||
         (m_icon_pixmap.width() != width() - 4 || 
          m_icon_pixmap.height() != height() - 4))) {
@@ -347,7 +347,7 @@ void WinButton::clear() {
 void WinButton::update(FbTk::Subject *subj) {
 
     // just checking, if we the app provides a pixmap.
-    if (m_type == MENUICON && m_listen_to.numClients()) {
+    if (m_type == MENUICON && !m_listen_to.empty()) {
         XWMHints* hints = XGetWMHints(m_listen_to.fbWindow().display(), 
                                       m_listen_to.winClient().window());
         if (hints == 0) {