DialogBox in Win32 - Prevent multiple instance
- by UK
Hello all,
I have a program which creates DialogBox window when user clicks the menu item from tray icon,
case ID_OPTIONS:
DialogBox ( GetModuleHandle ( NULL ), MAKEINTRESOURCE ( IDD_SETUP_DIALOG ), hWnd, reinterpret_cast<DLGPROC>(SetupDlgProc) );
return 0;
But the problem here is everytime when users clicks item from tray , a new instance of the dialogbox appears. Is there anyway to prevent this multiple instance ?
BTW, my SetupDlgProc looks like this,
BOOL CALLBACK SetupDlgProc ( HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam )
{
switch ( Message )
{
case WM_INITDIALOG:
...
}
}
Thanks for your help.
