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 |  
Subclassing, message MAP dans le cpp:
int __fastcall TfrmMain::OnSysCommand(Messages::TMessage &Message)
{
  // Vista support
  switch(Message.WParam) {
    case SC_MINIMIZE:
      ::ShowWindow(this->Handle, SW_MINIMIZE);
      return 1;
    case SC_MAXIMIZE:
      ::ShowWindow(this->Handle, SW_RESTORE);
      return 1;
  }
  return 0;
}
 
Standard BCB, message MAP dans le header:
void __fastcall TfrmMain::OnSysCommand(Messages::TMessage &Message)
{
  // Vista support
  switch(Message.WParam) {
    case SC_MINIMIZE:
      ::ShowWindow(this->Handle, SW_MINIMIZE);
      Message.Result = 0;
      break;
    case SC_MAXIMIZE:
      ::ShowWindow(this->Handle, SW_RESTORE);
      Message.Result = 0;
      break;
  }
} | 
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