diff --git a/kcmkwin/kwinrules/main.cpp b/kcmkwin/kwinrules/main.cpp
index bf8aa2442c..b27f4326a9 100644
--- a/kcmkwin/kwinrules/main.cpp
+++ b/kcmkwin/kwinrules/main.cpp
@@ -199,7 +199,7 @@ static int edit( Window wid )
     Rules* orig_rule = findRule( rules, wid );
     RulesDialog dlg;
     // dlg.edit() creates new Rules instance if edited
-    Rules* edited_rule = dlg.edit( orig_rule, true );
+    Rules* edited_rule = dlg.edit( orig_rule, wid );
     if( edited_rule == NULL || edited_rule->isEmpty())
         {
         rules.remove( orig_rule );
diff --git a/kcmkwin/kwinrules/ruleslist.cpp b/kcmkwin/kwinrules/ruleslist.cpp
index cd079cf9bc..53c4094bb2 100644
--- a/kcmkwin/kwinrules/ruleslist.cpp
+++ b/kcmkwin/kwinrules/ruleslist.cpp
@@ -74,7 +74,7 @@ void KCMRulesList::activeChanged( QListBoxItem* item )
 void KCMRulesList::newClicked()
     {
     RulesDialog dlg;
-    Rules* rule = dlg.edit( NULL, false );
+    Rules* rule = dlg.edit( NULL, 0 );
     if( rule == NULL )
         return;
     int pos = rules_listbox->currentItem() + 1;
@@ -90,7 +90,7 @@ void KCMRulesList::modifyClicked()
     if ( pos == -1 )
         return;
     RulesDialog dlg;
-    Rules* rule = dlg.edit( rules[ pos ], false );
+    Rules* rule = dlg.edit( rules[ pos ], 0 );
     if( rule == rules[ pos ] )
         return;
     delete rules[ pos ];
diff --git a/kcmkwin/kwinrules/ruleswidget.cpp b/kcmkwin/kwinrules/ruleswidget.cpp
index da19abba6a..b7bc10cc22 100644
--- a/kcmkwin/kwinrules/ruleswidget.cpp
+++ b/kcmkwin/kwinrules/ruleswidget.cpp
@@ -493,16 +493,6 @@ void RulesWidget::detectClicked()
     detect_dlg->detect( 0 );
     }
 
-#define GENERIC_PREFILL( var, func, info, uimethod ) \
-    if( !enable_##var->isChecked()) \
-        { \
-        var->uimethod( func( info )); \
-        }
-
-#define CHECKBOX_PREFILL( var, func, info ) GENERIC_PREFILL( var, func, info, setChecked )
-#define LINEEDIT_PREFILL( var, func, info ) GENERIC_PREFILL( var, func, info, setText )
-#define COMBOBOX_PREFILL( var, func, info ) GENERIC_PREFILL( var, func, info, setCurrentItem )
-
 void RulesWidget::detected( bool ok )
     {
     if( ok )
@@ -539,35 +529,50 @@ void RulesWidget::detected( bool ok )
         machineMatchChanged();
         // prefill values from to window to settings which already set
         const KWin::WindowInfo& info = detect_dlg->windowInfo();
-        LINEEDIT_PREFILL( position, positionToStr, info.frameGeometry().topLeft() );
-        LINEEDIT_PREFILL( size, sizeToStr, info.frameGeometry().size() );
-        COMBOBOX_PREFILL( desktop, desktopToCombo, info.desktop() );
-        CHECKBOX_PREFILL( maximizehoriz,, info.state() & NET::MaxHoriz );
-        CHECKBOX_PREFILL( maximizevert,, info.state() & NET::MaxVert );
-        CHECKBOX_PREFILL( minimize,, info.isMinimized() );
-        CHECKBOX_PREFILL( shade,, info.state() & NET::Shaded );
-        CHECKBOX_PREFILL( fullscreen,, info.state() & NET::FullScreen );
-        //COMBOBOX_PREFILL( placement, placementToCombo );
-        CHECKBOX_PREFILL( above,, info.state() & NET::KeepAbove );
-        CHECKBOX_PREFILL( below,, info.state() & NET::KeepBelow );
-        // noborder is only internal KWin information, so let's guess
-        CHECKBOX_PREFILL( noborder,, info.frameGeometry() == info.geometry() );
-        CHECKBOX_PREFILL( skiptaskbar,, info.state() & NET::SkipTaskbar );
-        CHECKBOX_PREFILL( skippager,, info.state() & NET::SkipPager );
-        //CHECKBOX_PREFILL( acceptfocus, );
-        //CHECKBOX_PREFILL( closeable, );
-        //COMBOBOX_PREFILL( fsplevel, );
-        //COMBOBOX_PREFILL( moveresizemode, moveresizeToCombo );
-        COMBOBOX_PREFILL( type, typeToCombo, info.windowType( SUPPORTED_WINDOW_TYPES_MASK ) );
-        //CHECKBOX_PREFILL( ignoreposition, );
-        LINEEDIT_PREFILL( minsize, sizeToStr, info.frameGeometry().size() );
-        LINEEDIT_PREFILL( maxsize, sizeToStr, info.frameGeometry().size() );
+        prefillUnusedValues( info );
         }
     delete detect_dlg;
     detect_dlg = NULL;
     detect_dlg_ok = ok;
     }
 
+#define GENERIC_PREFILL( var, func, info, uimethod ) \
+    if( !enable_##var->isChecked()) \
+        { \
+        var->uimethod( func( info )); \
+        }
+
+#define CHECKBOX_PREFILL( var, func, info ) GENERIC_PREFILL( var, func, info, setChecked )
+#define LINEEDIT_PREFILL( var, func, info ) GENERIC_PREFILL( var, func, info, setText )
+#define COMBOBOX_PREFILL( var, func, info ) GENERIC_PREFILL( var, func, info, setCurrentItem )
+
+void RulesWidget::prefillUnusedValues( const KWin::WindowInfo& info )
+    {
+    LINEEDIT_PREFILL( position, positionToStr, info.frameGeometry().topLeft() );
+    LINEEDIT_PREFILL( size, sizeToStr, info.frameGeometry().size() );
+    COMBOBOX_PREFILL( desktop, desktopToCombo, info.desktop() );
+    CHECKBOX_PREFILL( maximizehoriz,, info.state() & NET::MaxHoriz );
+    CHECKBOX_PREFILL( maximizevert,, info.state() & NET::MaxVert );
+    CHECKBOX_PREFILL( minimize,, info.isMinimized() );
+    CHECKBOX_PREFILL( shade,, info.state() & NET::Shaded );
+    CHECKBOX_PREFILL( fullscreen,, info.state() & NET::FullScreen );
+    //COMBOBOX_PREFILL( placement, placementToCombo );
+    CHECKBOX_PREFILL( above,, info.state() & NET::KeepAbove );
+    CHECKBOX_PREFILL( below,, info.state() & NET::KeepBelow );
+    // noborder is only internal KWin information, so let's guess
+    CHECKBOX_PREFILL( noborder,, info.frameGeometry() == info.geometry() );
+    CHECKBOX_PREFILL( skiptaskbar,, info.state() & NET::SkipTaskbar );
+    CHECKBOX_PREFILL( skippager,, info.state() & NET::SkipPager );
+    //CHECKBOX_PREFILL( acceptfocus, );
+    //CHECKBOX_PREFILL( closeable, );
+    //COMBOBOX_PREFILL( fsplevel, );
+    //COMBOBOX_PREFILL( moveresizemode, moveresizeToCombo );
+    COMBOBOX_PREFILL( type, typeToCombo, info.windowType( SUPPORTED_WINDOW_TYPES_MASK ) );
+    //CHECKBOX_PREFILL( ignoreposition, );
+    LINEEDIT_PREFILL( minsize, sizeToStr, info.frameGeometry().size() );
+    LINEEDIT_PREFILL( maxsize, sizeToStr, info.frameGeometry().size() );
+    }
+
 #undef GENERIC_PREFILL
 #undef CHECKBOX_PREFILL
 #undef LINEEDIT_PREFILL
@@ -600,9 +605,11 @@ bool RulesWidget::finalCheck()
     return true;
     }
 
-void RulesWidget::focusSettings()
+void RulesWidget::prepareWindowSpecific( WId window )
     {
     tabs->setCurrentPage( 2 ); // geometry tab, skip tabs for window identification
+    KWin::WindowInfo info( window, -1U, -1U ); // read everything
+    prefillUnusedValues( info );
     }
 
 RulesDialog::RulesDialog( QWidget* parent, const char* name )
@@ -612,12 +619,14 @@ RulesDialog::RulesDialog( QWidget* parent, const char* name )
     setMainWidget( widget );
     }
 
-Rules* RulesDialog::edit( Rules* r, bool focus_settings )
+// window is set only for Alt+F3/Window-specific settings, because the dialog
+// is then related to one specific window
+Rules* RulesDialog::edit( Rules* r, WId window )
     {
     rules = r;
     widget->setRules( rules );
-    if( focus_settings )
-        widget->focusSettings();
+    if( window != 0 )
+        widget->prepareWindowSpecific( window );
     exec();
     return rules;
     }
diff --git a/kcmkwin/kwinrules/ruleswidget.h b/kcmkwin/kwinrules/ruleswidget.h
index 17476d20fb..9d200f9eeb 100644
--- a/kcmkwin/kwinrules/ruleswidget.h
+++ b/kcmkwin/kwinrules/ruleswidget.h
@@ -21,6 +21,7 @@
 #define __RULESWIDGET_H__
 
 #include <kdialogbase.h>
+#include <kwin.h>
 
 #include "ruleswidgetbase.h"
 
@@ -39,7 +40,7 @@ class RulesWidget
         void setRules( Rules* r );
         Rules* rules() const;
         bool finalCheck();
-        void focusSettings();
+        void prepareWindowSpecific( WId window );
     signals:
         void changed( bool state );
     protected slots:
@@ -80,6 +81,7 @@ class RulesWidget
     private:
         int desktopToCombo( int d ) const;
         int comboToDesktop( int val ) const;
+        void prefillUnusedValues( const KWin::WindowInfo& info );
         DetectDialog* detect_dlg;
         bool detect_dlg_ok;
     };
@@ -90,7 +92,7 @@ class RulesDialog
     Q_OBJECT
     public:
         RulesDialog( QWidget* parent = NULL, const char* name = NULL );
-        Rules* edit( Rules* r, bool focus_settings );
+        Rules* edit( Rules* r, WId window );
     protected:
         virtual void accept();
     private: