# VAPIMWP_EDIT_SELECTALL

Selects all content in the currently opened document. Use theVAPIMWP_EDIT_CANSELECTALL message to determine whether you can select all content in the document. This is a parameter of the `VAPIM_EDIT` message.

## Syntax

    #include <kvvapi.h>
    SendMessage(g_hWndFocus, VAPIM_EDIT, VAPIMWP_EDIT_SELECTALL, 0L );

## Arguments

Argument | Description
--- | ---
`hWndVAPI` | The handle of the VAPI window.
`uMsg` | `VAPIM_EDIT`
`wParam` | `VAPIMWP_EDIT_SELECTALL`
`lParam` | Not used, set to `0`

## Returns

`SendMessage()` returns `TRUE` if the selection succeeded; `FALSE` otherwise.

## Discussion

Use this message to implement a Select All menu item or toolbar button.

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