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129 lines
3.6 KiB
129 lines
3.6 KiB
/*
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* Microsoft Confidential
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* Copyright (C) Microsoft Corporation 1991
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* All Rights Reserved.
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*
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*
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* PIFHOT.C
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* User interface routines for hot-keys
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*
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* History:
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* Created 21-Dec-1992 5:30pm by Jeff Parsons (based on old PIFEDIT code)
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* Rewritten 25-Dec-1993 by Raymond Chen
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*/
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#include "shellprv.h"
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#pragma hdrstop
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/*
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* Values for the second argument to MapVirtualKey, mysteriously
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* missing from windows.h.
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*/
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#define MVK_OEMFROMVK 0
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#define MVK_VKFROMOEM 1
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/*
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* BEWARE! Converting a VK to a scan code and back again does not
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* necessarily get you back where you started! The main culprit
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* is the numeric keypad, since (for example) VK_LEFT and VK_NUMPAD4
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* both map to scan code 0x4B. We catch the numeric keypad specially
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* for exactly this purpose.
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*
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* The following table converts VK codes VK_NUMPAD0 through VK_NUMPAD9
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* to the corresponding VK_ code if NumLock is off.
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*
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* Note that this table and the loop that accesses it assume that the
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* scan codes VK_NUMPAD0 through VK_NUMPAD9 are consecutive.
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*/
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WORD mpvkvk[10] = {
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VK_INSERT, /* VK_NUMPAD0 */
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VK_END, /* VK_NUMPAD1 */
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VK_DOWN, /* VK_NUMPAD2 */
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VK_NEXT, /* VK_NUMPAD3 */
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VK_LEFT, /* VK_NUMPAD4 */
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VK_CLEAR, /* VK_NUMPAD5 */
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VK_RIGHT, /* VK_NUMPAD6 */
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VK_HOME, /* VK_NUMPAD7 */
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VK_UP, /* VK_NUMPAD8 */
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VK_PRIOR, /* VK_NUMPAD9 */
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};
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/** HotKeyWindowsFromOem - Convert OEM hotkey into Windows hotkey
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*
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* INPUT
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* lppifkey -> PIFKEY describing OEM Hotkey
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*
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* OUTPUT
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* Windows hotkey value corresponding to lpwHotkey.
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*/
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WORD HotKeyWindowsFromOem(LPCPIFKEY lppifkey)
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{
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WORD wHotKey = 0;
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if (lppifkey->Scan) {
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wHotKey = (WORD) MapVirtualKey(lppifkey->Scan, MVK_VKFROMOEM);
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if (lppifkey->Val & 2) {
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WORD vk;
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for (vk = VK_NUMPAD0; vk <= VK_NUMPAD9; vk++) {
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if (wHotKey == mpvkvk[vk - VK_NUMPAD0]) {
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wHotKey = vk; break;
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}
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}
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ASSERTTRUE(vk <= VK_NUMPAD9); /* Buggy PIF; do what we can */
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}
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if (lppifkey->Val & 1) wHotKey |= (HOTKEYF_EXT << 8);
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if (lppifkey->ShVal & (fPIFSh_RShf | fPIFSh_LShf))
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wHotKey |= (HOTKEYF_SHIFT << 8);
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if (lppifkey->ShVal & (fPIFSh_LCtrl|fPIFSh_RCtrl|fPIFSh_Ctrl))
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wHotKey |= (HOTKEYF_CONTROL << 8);
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if (lppifkey->ShVal & (fPIFSh_LAlt|fPIFSh_RAlt|fPIFSh_Alt))
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wHotKey |= (HOTKEYF_ALT << 8);
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}
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return wHotKey;
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}
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/** HotKeyOemFromWindows - Convert Windows hotkey into OEM hotkey
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*
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* INPUT
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* lppifkey -> struct PIF_Key to receive OEM hotkey
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* wHotKey = Windows hotkey
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*
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* OUTPUT
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* lppifkey filled with hotkey info
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*/
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void HotKeyOemFromWindows(LPPIFKEY lppifkey, WORD wHotKey)
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{
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lppifkey->Scan = 0;
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lppifkey->ShVal = 0;
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lppifkey->ShMsk = 0;
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lppifkey->Val = 0;
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if (wHotKey) {
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lppifkey->Scan = (WORD) MapVirtualKey(LOBYTE(wHotKey), MVK_OEMFROMVK);
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lppifkey->ShMsk = fPIFSh_RShf | fPIFSh_LShf | fPIFSh_Ctrl | fPIFSh_Alt;
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if (wHotKey & (HOTKEYF_EXT << 8)) lppifkey->Val |= 1;
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/* Assumes that VK_NUMPAD0 through VK_NUMPAD9 are consecutive */
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if ((wHotKey - VK_NUMPAD0) < 10) lppifkey->Val |= 2;
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if (wHotKey & (HOTKEYF_SHIFT << 8))
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lppifkey->ShVal |= fPIFSh_RShf | fPIFSh_LShf;
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if (wHotKey & (HOTKEYF_CONTROL << 8))
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lppifkey->ShVal |= fPIFSh_Ctrl;
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if (wHotKey & (HOTKEYF_ALT << 8))
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lppifkey->ShVal |= fPIFSh_Alt;
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}
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}
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