C / C++ / MFC

class A
{
  public:
    int __cdecl f(int a_){a=a_; return a+1;}
  private:
    int a;
};

typedef int (__cdecl A::* PMEMBFUNCTION)(int);
typedef int (__cdecl    * PFUNCTION)    (A*,int);

A             a;
PMEMBFUNCTION pmf=A::f;
PFUNCTION     pf=reinterpret_cast<PFUNCTION>(pmf);

struct caster{
  union{
    PMEMBFUNCTION pmf;
    PFUNCTION     pf;
  };
};

#include <iostream>

using namespace std;

class A
{
  public:
    int __cdecl f(int a_){a=a_; return a+1;}
  private:
    int a;
};

typedef int (__cdecl A::* PMEMBFUNCTION)(int);
typedef int (__cdecl    * PFUNCTION)    (A*,int);

struct caster{
  union{
    PMEMBFUNCTION pmf;
    PFUNCTION     pf;
  };
};

int main(void)
{
  A         a;
  caster    c; c.pmf=A::f; // put the pointer to memb function in...
  PFUNCTION pf=c.pf;       // and pull the pointer to function out!
  
  cout<<pf(&a,666)<<endl;  // &a is the extra "this" pointer
  
  return 0;
}

-Masaaki Onishi-

The Gallery regenerates links to registered ActiveX controls every time you open it, based on the current state of the registry. This has certain implications:

If you delete a link to a registered ActiveX control, the link will still appear the next time you open the Gallery.


If you delete a registered ActiveX control (.OCX or .DLL file), but do not unregister it, the link will still appear the next time you open the Gallery. Of course the link will be inoperative.


If you copy an ActiveX control to your machine, but do not register the file, the link does not appear because the Gallery does not recognize the control.

CRect rectWnd;
GetWindowRect(rectWnd);
SetWindowPos(NULL, 0, 0,
    rectWnd.Width(),
    rectWnd.Height() + 100,
    SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE);

CWnd *pWnd=GetWindow(GW_CHILD);

while(pWnd!=NULL){
    CRect rect;
    pWnd->GetWindowRect(rect);
    rect.OffsetRect(0,100);
    ScreenToClient(rect);
    pWnd->MoveWindow(rect,FALSE);
    pWnd=pWnd->GetNextWindow();
}