Globals in MFC
Class Framework, CWinApp
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Petr
Stejskal.
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...
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