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Overview |
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Group |
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Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| Yes
| Import Library
| -
| Header File
| winuser.h
| Unicode
| No
| Platform Notes
| None
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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
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  2 indicates that the application handled all aspects of selecting the item and
requires no further action by the list box. A return value of 1 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 1.
See Also
DefWindowProc, WM_CHARTOITEM, WM_KEYDOWN
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