please dont rip this site Prev Next

VkKeyScan info  Overview  Group

The VkKeyScan function translates a character to the corresponding virtual-key code and shift state for the current keyboard.

SHORT VkKeyScan(

    TCHAR ch 

// character to translate



Specifies the character to be translated into a virtual-key code.

Return Values

If the function succeeds, the low-order byte of the return value contains the virtual-key code and the high-order byte contains the shift state, which can be a combination of the following flag bits:




Either SHIFT key is pressed.


Either CTRL key is pressed.


Either ALT key is pressed.


The Hankaku key is pressed


Reserved (defined by the keyboard layout driver).


Reserved (defined by the keyboard layout driver).

If the function finds no key that translates to the passed character code, both the low-order and high-order bytes contain -1.


For keyboard layouts that use the right-hand ALT key as a shift key (for example, the French keyboard layout), the shift state is represented by the value 6, because the right-hand ALT key is converted internally into CTRL+ALT.

Translations for the numeric keypad (VK_NUMPAD0 through VK_DIVIDE) are ignored. This function is intended to translate characters into keystrokes from the main keyboard section only. For example, the character 7 is translated into VK_7, not VK_NUMPAD7.

VkKeyScan is used by applications that send characters by using the WM_KEYUP and WM_KEYDOWN messages.

See Also

GetAsyncKeyState, GetKeyboardState, GetKeyNameText, GetKeyState, SetKeyboardState, WM_KEYDOWN, WM_KEYUP 

See also:

file: /Techref/os/win/api/win32/func/src/f90_18.htm, 3KB, , updated: 2000/4/7 12:19, local time: 2022/5/23 23:00,

 ©2022 These pages are served without commercial sponsorship. (No popup ads, etc...).Bandwidth abuse increases hosting cost forcing sponsorship or shutdown. This server aggressively defends against automated copying for any reason including offline viewing, duplication, etc... Please respect this requirement and DO NOT RIP THIS SITE. Questions?
Please DO link to this page! Digg it! / MAKE!

<A HREF=""> VkKeyScan</A>

After you find an appropriate page, you are invited to your to this massmind site! (posts will be visible only to you before review) Just type a nice message (short messages are blocked as spam) in the box and press the Post button. (HTML welcomed, but not the <A tag: Instead, use the link box to link to another page. A tutorial is available Members can login to post directly, become page editors, and be credited for their posts.

Link? Put it here: 
if you want a response, please enter your email address: 
Attn spammers: All posts are reviewed before being made visible to anyone other than the poster.
Did you find what you needed?

  PICList 2022 contributors:
o List host: MIT, Site host, Top posters @20220523
* Page Editors: James Newton, David Cary, and YOU!
* Roman Black of Black Robotics donates from sales of Linistep stepper controller kits.
* Ashley Roll of Digital Nemesis donates from sales of RCL-1 RS232 to TTL converters.
* Monthly Subscribers: Gregg Rew. on-going support is MOST appreciated!
* Contributors: Richard Seriani, Sr.

Welcome to!