CBN_ERRSPACE  12NAT7I 

The CBN_ERRSPACE notification message is sent when a combo box cannot allocate enough memory to meet a specific request. The parent window of the combo box receives this notification message through the WM_COMMAND message.

CBN_ERRSPACE

idComboBox = (int) LOWORD(wParam);  // identifier of combo box

hwndComboBox = (HWND) lParam;       // handle of combo box

See Also