SHORT _GetKeyState(
int vk)
{
UINT wKeyState;
PTHREADINFO pti;
if ((UINT)vk >= CVKKEYSTATE) {
RIPERR1(ERROR_INVALID_PARAMETER,
RIP_WARNING,
"Invalid parameter \"vk\" (%ld) to _GetKeyState",
vk);
return 0;
}
pti = PtiCurrentShared();
#ifdef LATER
//
// note - anything that accesses the pq structure is a bad idea since it
// can be changed between any two instructions.
//
#endif
wKeyState = 0;
/*
* Set the toggle bit.
*/
if (TestKeyStateToggle(pti->pq, vk))
wKeyState = 0x0001;
/*
* Set the keyup/down bit.
*/
if (TestKeyStateDown(pti->pq, vk)) {
/*
* Used to be wKeyState|= 0x8000.Fix for bug 28820; Ctrl-Enter
* accelerator doesn't work on Nestscape Navigator Mail 2.0
*/
wKeyState |= 0xff80; // This is what 3.1 returned!!!!
}
return (SHORT)wKeyState;
}
DWORD
CheckImeHotKey(
PQ pq, // input queue
UINT uVKey, // virtual key
LPARAM lParam // lparam of WM_KEYxxx message
)
{
static UINT uVKeySaved = 0;
PIMEHOTKEYOBJ ph;
UINT uModifiers = 0;
BOOL fKeyUp;
//
// early return for key up message
//
fKeyUp = ( lParam & 0x80000000 ) ? TRUE : FALSE;
if ( fKeyUp ) {
//
// if the uVKey is not same as the vkey
// we previously saved, there is no chance
// that this is a hotkey.
//
if ( uVKeySaved != uVKey ) {
uVKeySaved = 0;
return IME_INVALID_HOTKEY;
}
uVKeySaved = 0;
//
// If it's same, we still need to check
// the hotkey list because there is a
// chance that the hotkey list is modified
// between the key make and break.
//
}
//
// Current specification doesn't allow us to use a complex
// hotkey such as LSHIFT+RMENU+SPACE
//
if ( uVKey != VK_SHIFT ) {
uModifiers |= TestKeyStateDown( pq, VK_LSHIFT ) ? (MOD_SHIFT | MOD_LEFT) : 0;
uModifiers |= TestKeyStateDown( pq, VK_RSHIFT ) ? (MOD_SHIFT | MOD_RIGHT) : 0;
}
if ( uVKey != VK_CONTROL ) {
uModifiers |= TestKeyStateDown( pq, VK_LCONTROL ) ? (MOD_CONTROL | MOD_LEFT) : 0;
uModifiers |= TestKeyStateDown( pq, VK_RCONTROL ) ? (MOD_CONTROL | MOD_RIGHT) : 0;
}
if ( uVKey != VK_MENU ) {
uModifiers |= TestKeyStateDown( pq, VK_LMENU ) ? (MOD_ALT | MOD_LEFT) : 0;
uModifiers |= TestKeyStateDown( pq, VK_RMENU ) ? (MOD_ALT | MOD_RIGHT) : 0;
}
ph = FindImeHotKeyByKey( gpImeHotKeyListHeader,
uModifiers & MOD_MODIFY_KEYS,
uModifiers & MOD_BOTH_SIDES,
uVKey );
if ( ph != NULL ) {
if ( fKeyUp ) {
if ( ph->hk.uModifiers & MOD_ON_KEYUP ) {
return ph->hk.dwHotKeyID;
}
} else {
if ( ph->hk.uModifiers & MOD_ON_KEYUP ) {
//
// save vkey for next keyup message time
//
// when ALT+Z is a hotkey, we don't want
// to handle #2 as the hotkey sequence.
// 1) ALT make -> 'Z' make -> 'Z' break
// 2) 'Z' make -> ALT make -> 'Z' break
//
uVKeySaved = uVKey;
} else {
return ph->hk.dwHotKeyID;
}
}
}
return IME_INVALID_HOTKEY;
}
