fixed GDI handle leak

git-svn-id: svn://svn.code.sf.net/p/processhacker/code@4337 21ef857c-d57f-4fe0-8362-d861dc6d29cd

2.x/trunk/CHANGELOG.txt

@@ -9,6 +9,7 @@ Process Hacker
      information for Windows 7
  * FIXED:
    * Crash when sorting by Time Stamp
+   * GDI handle leak in drag selection
 
 2.18
  * NEW/IMPROVED:

2.x/trunk/phlib/treenew.c

@@ -5170,6 +5170,7 @@ VOID PhTnpDrawSelectionRectangle(
                 drewWithAlpha = TRUE;
 
                 SelectObject(tempDc, oldBitmap);
+                DeleteObject(bitmap);
             }
 
             DeleteDC(tempDc);