Fixed drawing problem when using scrollbars or mouse wheel

Implemented checkbuttons

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@57 8e941d3f-bd1b-0410-a28a-d453659cc2b4

components/virtualtreeview/demos/mininal/Main.lrs

@@ -1,5 +1,3 @@
-{ This is an automatically generated lazarus resource file }
-
 LazarusResources.Add('TMainForm','FORMDATA',[
   'TPF0'#9'TMainForm'#8'MainForm'#4'Left'#3'a'#1#6'Height'#3#225#1#3'Top'#3#172
   +#0#5'Width'#3#169#1#18'HorzScrollBar.Page'#3#168#1#18'VertScrollBar.Page'#3

components/virtualtreeview/demos/mininal/Main.pas

@@ -59,7 +59,7 @@ procedure TMainForm.FormCreate(Sender: TObject);
 
 begin
   {$ifdef DEBUG}
-  Logger.ActiveClasses:=[lcScroll];
+  Logger.ActiveClasses:=[];//[lcScroll,lcPaint];
   Logger.Channels.Add(TIPCChannel.Create);
   Logger.Clear;
   Logger.MaxStackCount:=10;

components/virtualtreeview/demos/mininal/minimal_lcl.lpi

@@ -63,19 +63,9 @@
   <CompilerOptions>
     <Version Value="5"/>
     <PathDelim Value="\"/>
-    <SearchPaths>
-      <OtherUnitFiles Value="E:\subversion\luipack\trunk\virtualtreeview\"/>
-    </SearchPaths>
     <CodeGeneration>
       <Generate Value="Faster"/>
     </CodeGeneration>
-    <Linking>
-      <Options>
-        <Win32>
-          <GraphicApplication Value="True"/>
-        </Win32>
-      </Options>
-    </Linking>
     <Other>
       <CompilerPath Value="$(CompPath)"/>
     </Other>