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--- qt:heap_versus_stack [2010/12/08 22:19] – [Heap or Stack?] mithat
+++ qt:heap_versus_stack [2010/12/08 22:58] – [Short answer] mithat
@@ Line 1: / Line 1: @@
 ====== Heap or Stack? ======
-Should Qt objects be created on the heap or on the stack? ((Reminder: the heap is the memory store from which dynamically allocated storage is taken; the stack is used for standard variable storage as well as for passing actual parameters to functions, etc.))
+Should Qt objects be created on the heap or on the stack?((Reminder: the heap is the memory store from which dynamically allocated storage is taken; the stack is used for standard variable storage as well as for passing actual parameters to functions, etc.))
 ===== Short answer =====
 If the object is going to be part of a tree of Qt objects (as will be the case for most Qt GUI objects), then it should be created on the heap.
-If the object is not part of a tree or is the root of a tree, then it can be created either on the heap or the stack. It seems to be a tradition (or maybe there's a good technical reason for this) to create the main ''QApplication'' object on the stack.
+If the object is not part of a tree or is the root of a tree, then it can be created either on the heap or the stack. It seems to be a tradition (or maybe there's a good technical reason for this) to create the main ''QApplication'' object on the stack. It is also typical to create main windows (tree roots) on the stack so that they do not need to be manually deleted.
 ===== Long answer =====