This message copies a string from the list box of a combo box into a buffer.
Parameter |
Description |
wParam |
Contains the index of the string to be copied. |
|
lParam |
Points to a buffer that is to receive the string. The buffer must have sufficient space for the string and a terminating null character. |
The return value is the length of the string in bytes, excluding the terminating null character. If wParam does not specify a valid index, the return value is CB_ERR.
If the combo box was created with an owner-draw style but without the CBS_HASSTRINGS style, the buffer pointed to by the lParam parameter of the message receives the 32-bit value associated with the item through the lParam parameter of the CB_ADDSTRING or CB_INSERTSTRING message.