ComboBox_InsertItemData macro (windowsx.h)

Inserts item data in a list in a combo box at the specified location. You can use this macro or send the CB_INSERTSTRING message explicitly.

Syntax

int ComboBox_InsertItemData(
   HWND   hwndCtl,
   int    index,
   LPARAM data
);

Parameters

hwndCtl

Type: HWND

A handle to the control.

index

Type: int

The zero-based index in the list at which to insert the item data, or –1 to add it to the end of the list.

data

Type: LPARAM

The item data to insert.

Return value

Type: int

The return value is the zero-based index of the item in the list. If an error occurs, the return value is CB_ERR. If there is insufficient space to store the new string, the return value is CB_ERRSPACE.

Remarks

Use this macro for a list in a combo box with an owner-drawn style but without the CBS_HASSTRINGS style. For more information, see CB_INSERTSTRING.

Requirements