141 lines
3.8 KiB
C
141 lines
3.8 KiB
C
/*
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* DdeServ.c
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*
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* This file is part of Emu48
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*
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* Copyright (C) 1998 Christoph Gießelink
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*
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*/
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#include "pch.h"
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#include "Emu48.h"
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HDDEDATA CALLBACK DdeCallback(UINT iType,UINT iFmt,HCONV hConv,
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HSZ hsz1,HSZ hsz2,HDDEDATA hData,
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DWORD dwData1,DWORD dwData2)
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{
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TCHAR szBuffer[32];
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HDDEDATA hReturn;
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LPBYTE lpData,lpHeader;
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DWORD dwAddress,dwSize,dwLoop,dwIndex;
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BOOL bSuccess;
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switch (iType)
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{
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case XTYP_CONNECT:
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DdeQueryString(idDdeInst,hsz2,szBuffer,ARRAYSIZEOF(szBuffer),0);
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if (0 != lstrcmp(szBuffer,szAppName))
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return (HDDEDATA) FALSE;
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DdeQueryString(idDdeInst,hsz1,szBuffer,ARRAYSIZEOF(szBuffer),0);
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return (HDDEDATA) (0==lstrcmp(szBuffer,szTopic));
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case XTYP_POKE:
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// illegal data format or not in running state
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if (iFmt != uCF_HpObj || nState != SM_RUN)
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return (HDDEDATA) DDE_FNOTPROCESSED;
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DdeAccessData(hData,&dwSize); // fetch data size
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DdeUnaccessData(hData);
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// reserve memory
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if ((lpData = (LPBYTE) LocalAlloc(LMEM_FIXED,dwSize * 2)) == NULL)
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return (HDDEDATA) DDE_FNOTPROCESSED;
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if (!Chipset.dispon) // HP off
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{
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// turn on HP
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KeyboardEvent(TRUE,0,0x8000);
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Sleep(200);
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KeyboardEvent(FALSE,0,0x8000);
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}
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if (WaitForSleepState()) // wait for cpu SHUTDN then sleep state
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{
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LocalFree(lpData); // free memory
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return (HDDEDATA) DDE_FNOTPROCESSED;
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}
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while (nState!=nNextState) Sleep(0);
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_ASSERT(nState==SM_SLEEP);
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// fetch data and write to stack
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DdeGetData(hData,(LPBYTE) &dwIndex,sizeof(DWORD),0L);
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if (dwIndex <= dwSize - sizeof(DWORD))
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dwSize = dwIndex;
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dwSize = DdeGetData(hData,lpData+dwSize,dwSize,sizeof(DWORD));
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bSuccess = (WriteStack(lpData,dwSize) == S_ERR_NO);
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LocalFree(lpData); // free memory
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SwitchToState(SM_RUN); // run state
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while (nState!=nNextState) Sleep(0);
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_ASSERT(nState==SM_RUN);
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if (bSuccess == FALSE)
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return (HDDEDATA) DDE_FNOTPROCESSED;
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KeyboardEvent(TRUE,0,0x8000);
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Sleep(200);
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KeyboardEvent(FALSE,0,0x8000);
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// wait for sleep mode
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while(Chipset.Shutdn == FALSE) Sleep(0);
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return (HDDEDATA) DDE_FACK;
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case XTYP_REQUEST:
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// illegal data format or not in running state
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if (iFmt != uCF_HpObj || nState != SM_RUN)
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return NULL;
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if (WaitForSleepState()) // wait for cpu SHUTDN then sleep state
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return NULL;
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while (nState!=nNextState) Sleep(0);
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_ASSERT(nState==SM_SLEEP);
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dwAddress = RPL_Pick(1); // pick address of level1 object
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if (dwAddress == 0)
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{
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SwitchToState(SM_RUN); // run state
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return NULL;
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}
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dwLoop = dwSize = (RPL_SkipOb(dwAddress) - dwAddress + 1) / 2;
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lpHeader = (Chipset.type != 'X') ? BINARYHEADER48 : BINARYHEADER49;
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// length of binary header
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dwIndex = strlen(lpHeader);
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// size of objectsize + header + object
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dwSize += dwIndex + sizeof(DWORD);
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// reserve memory
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if ((lpData = (LPBYTE) LocalAlloc(LMEM_FIXED,dwSize)) == NULL)
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{
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SwitchToState(SM_RUN); // run state
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return NULL;
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}
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// save data length
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*(DWORD *)lpData = dwLoop + dwIndex;
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// copy header
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memcpy(lpData + sizeof(DWORD),lpHeader,dwIndex);
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// copy data
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for (dwIndex += sizeof(DWORD);dwLoop--;++dwIndex,dwAddress += 2)
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lpData[dwIndex] = Read2(dwAddress);
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// write data
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hReturn = DdeCreateDataHandle(idDdeInst,lpData,dwSize,0,hsz2,iFmt,0);
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LocalFree(lpData);
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SwitchToState(SM_RUN); // run state
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while (nState!=nNextState) Sleep(0);
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_ASSERT(nState==SM_RUN);
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return hReturn;
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}
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return NULL;
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UNREFERENCED_PARAMETER(hConv);
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UNREFERENCED_PARAMETER(dwData1);
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UNREFERENCED_PARAMETER(dwData2);
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}
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