Globals in MFC

MFC class framework makes possible to work easily with global variables and functions. Let's declare a static member variable or function in the CWinApp derived class. It is accessible from all classes.

Example:

// MyApp.h
class CMyApp : public CWinApp
{
public:
  CMyApp();

  static int g_nMyVariable;      // declaration
  static void g_MyFunction();    // declaration
  ...
  etc
  ...
};
// MyApp.cpp
int CMyApp::g_nMyVariable = NULL;     // definition & initialization
void CMyApp::g_MyFunction()        // definition
{
}

Now the variable and the function are accessible through the syntax CMyApp::g_nMyVariable or CMyApp::g_MyFunction from any other class...

 



Comments

  • EKoHY NkY RYtU

    Posted by wfAahmllrb on 11/15/2012 08:45pm

    buy soma carisoprodol grapefruit juice - can you really buy soma online

    Reply
  • vetqI Ibm TMZI

    Posted by cVNExPQHwR on 11/14/2012 01:57am

    carisoprodol 350 mg carisoprodol 350 mg erowid - somanabolic muscle maximizer side effects

    Reply
Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • With JRebel, developers get to see their code changes immediately, fine-tune their code with incremental changes, debug, explore and deploy their code with ease (both locally and remotely), and ultimately spend more time coding instead of waiting for the dreaded application redeploy to finish. Every time a developer tests a code change it takes minutes to build and deploy the application. JRebel keeps the app server running at all times, so testing is instantaneous and interactive.

  • The rapid evolution of enterprise storage technologies, combined with external forces, like the explosion of big data, can cause Linux® and server administrators to play catch-up when it comes to storage. Running a bunch of monolithic storage devices and proprietary, disconnected technologies forces administrators to spend valuable time creating and managing complex solutions. To reduce complexity and enable rapid deployment of new technologies and applications, server administrators need a single open …

Most Popular Programming Stories

More for Developers

Latest Developer Headlines

RSS Feeds