Sweden-Number/dlls/imm32/main.c

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/*
* The entry point of IMM32.DLL.
*
* Copyright 2000 Hidenori Takeshima
*/
#include "config.h"
#include "winbase.h"
#include "windef.h"
#include "wingdi.h"
#include "winuser.h"
#include "winerror.h"
#include "immddk.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(imm);
#include "imm_private.h"
static HANDLE IMM32_hHeap;
static DWORD IMM32_dwTLSIndex;
static CRITICAL_SECTION IMM32_csIMM;
static BOOL IMM32_InitProcessMem( void );
static void IMM32_CleanupProcessMem( void );
static void IMM32_InitThreadData( void );
static void IMM32_CleanupThreadData( void );
/***********************************************************************
* IMM32_DllMain
*/
BOOL WINAPI IMM32_DllMain(
HINSTANCE hInstDLL,
DWORD fdwReason,
LPVOID lpvReserved )
{
switch ( fdwReason )
{
case DLL_PROCESS_ATTACH:
IMM32_InitProcessMem();
IMM32_RegisterIMEWndClass( hInstDLL );
break;
case DLL_PROCESS_DETACH:
IMM32_UnloadAllIMEs();
IMM32_UnregisterIMEWndClass( hInstDLL );
IMM32_CleanupProcessMem();
break;
case DLL_THREAD_ATTACH:
IMM32_InitThreadData();
break;
case DLL_THREAD_DETACH:
IMM32_CleanupThreadData();
break;
}
return TRUE;
}
static BOOL IMM32_InitProcessMem( void )
{
IMM32_hHeap = (HANDLE)NULL;
IMM32_dwTLSIndex = (DWORD)0xffffffff;
IMM32_hHeap = HeapCreate( 0, 0x10000, 0 );
if ( IMM32_hHeap == (HANDLE)NULL )
{
ERR( "cannot allocate heap for IMM32.\n" );
return FALSE;
}
IMM32_dwTLSIndex = TlsAlloc();
if ( IMM32_dwTLSIndex == (DWORD)0xffffffff )
{
ERR( "cannot allocate a TLS for IMM.\n" );
return FALSE;
}
InitializeCriticalSection( &IMM32_csIMM );
return TRUE;
}
static void IMM32_CleanupProcessMem( void )
{
DeleteCriticalSection( &IMM32_csIMM );
if ( IMM32_dwTLSIndex != (DWORD)0xffffffff )
{
TlsFree( IMM32_dwTLSIndex );
IMM32_dwTLSIndex = (DWORD)0xffffffff;
}
if ( IMM32_hHeap != (HANDLE)NULL )
{
(void)HeapDestroy( IMM32_hHeap );
IMM32_hHeap = (HANDLE)NULL;
}
}
LPVOID IMM32_HeapAlloc( DWORD dwFlags, DWORD dwSize )
{
return HeapAlloc( IMM32_hHeap, dwFlags, dwSize );
}
LPVOID IMM32_HeapReAlloc( DWORD dwFlags, LPVOID lpv, DWORD dwSize )
{
return HeapReAlloc( IMM32_hHeap, dwFlags, lpv, dwSize );
}
void IMM32_HeapFree( LPVOID lpv )
{
if ( lpv != NULL )
HeapFree( IMM32_hHeap, 0, lpv );
}
static void IMM32_InitThreadData( void )
{
TlsSetValue( IMM32_dwTLSIndex, NULL );
}
static void IMM32_CleanupThreadData( void )
{
IMM32_THREADDATA* pData;
pData = (IMM32_THREADDATA*)TlsGetValue( IMM32_dwTLSIndex );
if ( pData != NULL )
{
/* Destroy Thread-local Data. */
if ( pData->hwndIME != (HWND)NULL )
DestroyWindow( pData->hwndIME );
if ( pData->hIMC != NULLIMC )
ImmDestroyContext( pData->hIMC );
IMM32_HeapFree( pData );
TlsSetValue( IMM32_dwTLSIndex, NULL );
}
}
IMM32_THREADDATA* IMM32_GetThreadData( void )
{
IMM32_THREADDATA* pData;
pData = (IMM32_THREADDATA*)TlsGetValue( IMM32_dwTLSIndex );
if ( pData != NULL )
return pData;
pData = (IMM32_THREADDATA*)
IMM32_HeapAlloc( 0, sizeof(IMM32_THREADDATA) );
if ( pData == NULL )
return NULL;
/* Initialize Thread-local Data. */
pData->hwndIME = (HWND)NULL;
pData->hIMC = NULLIMC;
TlsSetValue( IMM32_dwTLSIndex, pData );
return pData;
}
HIMC IMM32_GetDefaultContext( void )
{
IMM32_THREADDATA* pData;
pData = IMM32_GetThreadData();
if ( pData == NULL )
return NULLIMC;
if ( pData->hIMC == NULLIMC )
pData->hIMC = ImmCreateContext();
return pData->hIMC;
}
HWND IMM32_GetDefaultIMEWnd( void )
{
IMM32_THREADDATA* pData;
pData = IMM32_GetThreadData();
if ( pData == NULL )
return NULLIMC;
if ( pData->hwndIME == (HWND)NULL )
pData->hwndIME = IMM32_CreateDefaultIMEWnd();
return pData->hwndIME;
}
void IMM32_Lock( void )
{
EnterCriticalSection( &IMM32_csIMM );
}
void IMM32_Unlock( void )
{
LeaveCriticalSection( &IMM32_csIMM );
}