Validating Changes in a Dialog

cChangeValidate is extremely easy to implement and use. It was written in a very basic form, and anyone should be able to incorporate it into their project with a minimum of difficulty. Note: cChangeValidate only stores the data for Combo Boxes, Edits, Buttons, and List Controls. If you wish to store data for say Static text or a specific class, just add another check in the cChangeValidate CALLBACK functions for your class and perform data storage and checking as necessary. Below is some sample code to actually run the class.

void Foo::Init()
{
 // cChangeValidateClass is a member variable of whichever class 
 // wants to use it. It must be global in scope and not local 
 // otherwise you obviously would not be able to store the data 
 // for later use
 cChangeValidateClass.CycleControls( GetSafeHwnd());
 
 return;
}

void Foo::OnOK()
{
 if( cChangeValidateClass.Compare())
 {
  //data has not been changed
  OnCancel(); 	//Or whichever process you wish to perform
  return;
 }

 //If data has been changed continue with processing
}

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