Overview
Group
Quick Info

Windows NT
Yes
Win95
Yes
Win32s
Yes
Import Library
-
Header File
winuser.h
Unicode
No
Platform Notes
None

WM_VKEYTOITEM

The WM_VKEYTOITEM message is sent by a list box with the LBS_WANTKEYBOARDINPUT style to its owner in response to a WM_KEYDOWN message.

WM_VKEYTOITEM

  • key = LOWORD(wParam); // virtual-key code

nCaretPos = HIWORD(wParam); // caret position

hwndLB = lParam; // handle of list box

Parameters

  • key

Value of the low-order word of wParam. Specifies the virtual-key code of the key the user pressed.

nCaretPos

Value of the high-order word of wParam. Specifies the current position of the caret.

hwndLB

Value of lParam. Identifies the list box.

Return Values

The return value specifies the action that the application performed in response to the message. A return value of pics/WIN3200090000.gif2 indicates that the application handled all aspects of selecting the item and requires no further action by the list box. A return value of pics/WIN3200090000.gif1 indicates that the list box should perform the default action in response to the keystroke. A return value of 0 or greater specifies the index of an item in the list box and indicates that the list box should perform the default action for the keystroke on the given item.

Default Action

The DefWindowProc function returns pics/WIN3200090000.gif1.

See Also

DefWindowProc
, WM_CHARTOITEM, WM_KEYDOWN

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