You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
91 lines
2.4 KiB
91 lines
2.4 KiB
/******************************************************************************
|
|
|
|
Source File: Freeze.CPP
|
|
|
|
This file implements the REC freezing and unfreezing routines.
|
|
|
|
******************************************************************************/
|
|
|
|
#include "StdAfx.H"
|
|
#include "MiniDev.H"
|
|
#include <tom.h>
|
|
|
|
|
|
#ifdef DEFINE_GUID
|
|
#undef DEFINE_GUID
|
|
#endif
|
|
#define DEFINE_GUID(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8) \
|
|
EXTERN_C const GUID name \
|
|
= { l, w1, w2, { b1, b2, b3, b4, b5, b6, b7, b8 } }
|
|
|
|
DEFINE_GUID(IID_ITextDocument,0x8CC497C0L,0xA1DF,0x11CE,0x80,0x98,0x00,0xAA,0x00,0x47,0xBE,0x5D);
|
|
|
|
|
|
/******************************************************************************
|
|
|
|
InitFreeze
|
|
|
|
Get the COM pointers needed to freeze and unfreeze a Rich Edit Control.
|
|
|
|
******************************************************************************/
|
|
|
|
void InitFreeze(HWND hedit, void** ppunk, void** ppdoc, long* plcount)
|
|
{
|
|
::SendMessage(hedit, EM_GETOLEINTERFACE, 0, (LPARAM) ppunk) ;
|
|
ASSERT(*ppunk != NULL) ;
|
|
|
|
((IUnknown *) *ppunk)->QueryInterface(IID_ITextDocument, ppdoc) ;
|
|
ASSERT(*ppdoc != NULL) ;
|
|
|
|
*plcount = 0 ;
|
|
|
|
TRACE("FRZ: punk = %x\tpdoc = %x\n", *ppunk, *ppdoc) ;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
|
|
Freeze
|
|
|
|
Freeze a Rich Edit Control.
|
|
|
|
******************************************************************************/
|
|
|
|
void Freeze(void* pdoc, long* plcount)
|
|
{
|
|
ASSERT(pdoc != NULL) ;
|
|
((ITextDocument *) pdoc)->Freeze(plcount) ;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
|
|
Unfreeze
|
|
|
|
Unfreeze a Rich Edit Control.
|
|
|
|
******************************************************************************/
|
|
|
|
void Unfreeze(void* pdoc, long* plcount)
|
|
{
|
|
ASSERT(pdoc != NULL) ;
|
|
((ITextDocument *) pdoc)->Unfreeze(plcount) ;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
|
|
ReleaseFreeze
|
|
|
|
Release the COM pointers used to freeze and unfreeze a Rich Edit Control.
|
|
|
|
******************************************************************************/
|
|
|
|
void ReleaseFreeze(void** ppunk, void** ppdoc)
|
|
{
|
|
if (*ppdoc)
|
|
((ITextDocument *) *ppdoc)->Release() ;
|
|
if (*ppunk)
|
|
((IUnknown *) *ppunk)->Release() ;
|
|
*ppdoc = *ppunk = NULL ;
|
|
}
|