hotkey.c

windows环境下的一套汉字处理引擎,可以对汉字进行相应的处理

/*********************************************************************
    Name:
	HotKey.c
    Module:
	WSENGINE
    Version:
	1.00
    Description:
	Windows Hot Key Manager
    Date:
	1993 Oct. - 1993 Dec.
    Created By:
	Wang Zhidong
    Functions:
	DispatchHotKey
    Exports:
	WseFindHotKey
	WseEnumHotKeys
	WseRegisterHotKey
	WseUnregisterHotKey
	WseEnableHotKey
*********************************************************************/
#include <Windows.h>
#include <mate.h>
#include "engine.h"

HOTKEYSTRUCT HotKeys[MAXHOTKEY];
int HotKeyCount = 0;

int FindHotKey (lpName, key)
LPSTR  lpName;
WORD   key;
{
    int     i;
    ATOM    aName;

    if (lpName)
	aName = GlobalFindAtom (lpName);
    else
	aName = NULL;

    for (i = 0; i < HotKeyCount; i++)
	{
	if ((aName || key) && (!aName || HotKeys[i].name == aName) &&
	    (!key || HotKeys[i].key == key))
	    return i;
	}
    return -1;
}

HOTKEYSTRUCT FAR * WINAPI WseFindHotKey (LPSTR lpName, UINT key)
{
    int i = FindHotKey (lpName, key);
    return (i == -1) ? NULL : HotKeys+i;
}

int  WINAPI WseEnumHotKeys (ENUMHOTKEYPROC fpProc, LPARAM lParam)
{
    int i, j = 0;

    for (i = 0; !j && i < HotKeyCount; i++)
	j = fpProc (HotKeys+i, lParam);
    return j;
}

BOOL WINAPI WseRegisterHotKey (lpName, key, cmd, wParam, lParam, Tag)
LPSTR  lpName;
WORD   key;
DWORD  cmd;
WPARAM wParam;
LPARAM lParam;
BOOL   Tag;
{
    LPSTR   lpStr;

    WseUnregisterHotKey (lpName, NULL);

    if (HotKeyCount < MAXHOTKEY && key && HIWORD(cmd))
	{
	if ((Tag & HKT_STRING) && lParam)
	    {
	    lpStr = (NPSTR)LocalAlloc (LPTR, lstrlen((LPSTR)lParam)+2);
	    lstrcpy (lpStr, (LPSTR)lParam);
	    for (lParam = (LPARAM)lpStr;
		 *lpStr;
		 lpStr = AnsiNext (lpStr))
		{
		if (*lpStr == ';')
		    *lpStr = 0;
		}
	    }
	HotKeys[HotKeyCount].name   = GlobalAddAtom (lpName);
	HotKeys[HotKeyCount].key    = key;
	HotKeys[HotKeyCount].sys    = HIWORD(cmd);
	HotKeys[HotKeyCount].cmd    = LOWORD(cmd);
	HotKeys[HotKeyCount].wParam = wParam;
	HotKeys[HotKeyCount].lParam = lParam;
	HotKeys[HotKeyCount].Tag    = Tag;
	HotKeyCount ++;
	return TRUE;
	}
    else
	return FALSE;
}

BOOL WINAPI WseUnregisterHotKey (lpName, key)
LPSTR  lpName;
WORD   key;
{
    int     i;

    i = FindHotKey (lpName, key);
    if (i != -1)
	{
	if (HotKeys[i].Tag & HKT_STRING)
	    LocalFree ((HANDLE)LOWORD(HotKeys[i].lParam));
	HotKeyCount--;
	WseRepMovsb ((LPSTR)(HotKeys+i),
		     (LPSTR)(HotKeys+i+1),
		     (HotKeyCount-i) * sizeof(HOTKEYSTRUCT));
	return TRUE;
	}
    return FALSE;
}

BOOL WINAPI WseEnableHotKey (lpName, key, bEnable)
LPSTR  lpName;
WORD   key;
BOOL   bEnable;
{
    int     i;

    i = FindHotKey (lpName, key);
    if (i != -1)
	{
	if (bEnable)
	    HotKeys[i].Tag &= ~HKT_DISABLE;
	else
	    HotKeys[i].Tag |= HKT_DISABLE;
	return TRUE;
	}
    return FALSE;
}

BOOL FAR DispatchHotKey (wVirtKey, lParam, lpKeyState)
WORD   wVirtKey;
LPARAM lParam;
LPBYTE lpKeyState;
{
    int i;
static WORD wPrevKey = NULL;
    WORD    wpk = wPrevKey;

    wVirtKey &= 0xff;
    wPrevKey = wVirtKey;

    if (lpKeyState[VK_CONTROL] & 0x80) wVirtKey |= (VKMASK_CONTROL << 8);
    if (lpKeyState[VK_SHIFT]   & 0x80) wVirtKey |= (VKMASK_SHIFT   << 8);
    if (lpKeyState[VK_MENU]    & 0x80) wVirtKey |= (VKMASK_MENU    << 8);
    if (lpKeyState[VK_LBUTTON] & 0x80) wVirtKey |= (VKMASK_LBUTTON << 8);
    if (lpKeyState[VK_RBUTTON] & 0x80) wVirtKey |= (VKMASK_RBUTTON << 8);

    for (i = 0; i < HotKeyCount; i++)
	{
	if (HotKeys[i].key == wVirtKey)
	    {
	    if (HotKeys[i].Tag & HKT_DISABLE)
		return FALSE;
	    if (wPrevKey == VK_CONTROL || wPrevKey == VK_SHIFT || wPrevKey == VK_MENU)
		{
		if (wpk != wPrevKey || !(lParam & 0x80000000))
		    return FALSE;
		WseSendControlMessage (HotKeys[i].sys,	  HotKeys[i].cmd,
						       HotKeys[i].wParam, HotKeys[i].lParam);
		return FALSE;
		}
	    else if (lParam & 0x80000000)
		return TRUE;

	    return WseSendControlMessage (HotKeys[i].sys,    HotKeys[i].cmd,
					  HotKeys[i].wParam, HotKeys[i].lParam);
	    }
	}
    return FALSE;
}