对话框中很多控件，其中有一个是视频采集窗口，怎么实现双击全屏？...

对话框中很多控件，其中有一个是视频采集窗口，怎么实现双击全屏？... --------------------编程问答-------------------- 处理内部消息获取机电部件文件进度上报加载模块信号量初始化文件方式加载接口
内存方式加载接口  加载模块初始化
UINT32s y1 CHECK_RET_OK_RN(ulRet, ulRet); y2
CCU_NULL_BYTE y3 CCU_NULL_PTR y4 return CCU_ERR y5  return CCU_OK y6
CCU_FClose(fp) y7 stFileData y8
y1 Proc485InterCmd(PDOWN_485_FRAME pSt485Msg)
y1  ulRet  = CCU_NULL_LONG;UCHAR   ucIsProcess = CCU_FALSE;
ulRet = Proc485InterFileCmd(pSt485Msg, &ucIsProcess);
CHECK_PARA_RTN_VALUE(ucIsProcess, CCU_TRUE, ulRet);.. = Proc485InterFruCmd(..); ..;y6;
y1 ReportGetFileSchedToPdt(y1 ulResId, LABEL_TYPE enType, y1 ulSched)
DBG_DOWNLOAD(LP_INFO,"", (UINT)ulResId,enType,(INT)ulSched);
if (DOWNLOAD_SUCCESS_FLAG == (INT)ulSched ){(VOID)CCU_LogWrite;}y6;}

y1 Init485LoadSem()
y1 i = 0;y1 j = 0;for ( i = 0 ; i < MAX_CCU_CHAN_NUM; i++ ){
for ( j = 0 ; j < GET_FRU_TAB_SIZE ; j++ )
{if ( CCU_OK != ADA_CreatSynSem((key_t)(SEM_IPC_LOAD_POS_TIMER + i*GET_FRU_TAB_SIZE
+j), &g_ast485GetFruTab[i].astFruUint[j].ulSynSemId)){打; y5; }打}}
for ..{if ( ..(SEM_IPC_LOAD_POS_TIMER + (GET_FRU_TAB_SIZE * MAX_CCU_CHAN_NUM
+ i)), (INT32 *)&g_ast485GetFruTab[i].ulMutexSem4Id) ){打;y5;}}y6;

y1 CCU_LoadOnlineByFile(y1 ulResId, CCU_LOAD_TYPE_ENUM enType, CHAR *pstrMainFileName )
y1  ulRet = CCU_ERR;
CHAR *pcTmp  = y4; y1  ulLen  = CCU_NULL_LONG;UINT16  uwIndex = CCU_NULL_WORD;
UCHAR   ucNetFn  = y3;UCHAR   ucCmd   = y3;RS485_FILE_LOAD y8;
UINT8 ucChanNum   = y3;UINT8 ucAddr  = y3;FILE *fp = y4;INT32  iLen = -1;CHECK;
CHECK_PARA_RTN_VALUE(g_ulIsDownHasInit, CCU_FALSE, CCU_ERR_MPI_NOT_INIT_CCUMAIN);
CHECK_LOAD_TYPE_RTN_VALUE(enType,CCU_ERR_MPI_LOAD_PARAMS_ILLEGAL);
ulRet = IsResIdRight(ulResId, &ucChanNum, &ucAddr);y2;
if (g_ast485BoardInfo[ucChanNum][ucAddr].enHswState  != CCU_NODE_STATE_SYNC){return ;}
fp = CCU_FOpen(pstrMainFileName, "rb");if (y4 == fp){打;return ;}
if (0 != CCU_FSeek(fp, 0, SEEK_END)){打;y7;y5;}
iLen = CCU_FTell(fp);if (iLen <= 0){打;y7;return;}
if ( CCU_LOAD_ELABEL == enType )
{ if (iLen > ELABEL_MAX_SIZE){打;y7; return;} }
if (0 != y7){打;y5;}y8.enType = enType;
pcTmp = pstrMainFileName;ulLen = (y1)CCU_StrLen(pstrMainFileName);
//包括\0 if (ulLen + 1 > MAX_485_DATA_LEN){return ;}
CCU_MemCpy((CHAR *)&(y8.aucData[0]), pcTmp, (INT)ulLen + 1);
ucNetFn = CCU_485LOAD_TYPE;
ucCmd   = CCU_485_DOWN_FILE_CMD;ulLen = ulLen + 1 + sizeof(y8.enType);
ulRet = RS485Rq(ulResId, uwIndex, 0, ucNetFn, ucCmd, (UCHAR *)&y8, ulLen);
(VOID)CCU_LogWrite ;return ulRet;

y1 CCU_LoadOnlineByBuf(y1 ulResourceId,CCU_LOAD_TYPE_ENUM  enType,
UCHAR *pucMainBuf,y1 ulMainBufLen)

y1 DownLoad485Init()
y1 ulRet = CCU_ERR;ulRet = DownLoad485TabInit();y2;ulRet = Rs485RdFruTabInit()
;y2;ulRet = Init485LoadSem();y2;g_ulIsDownHasInit = CCU_TRUE;y6;
--------------------编程问答-------------------- 处理内部文件传输消息
--------------------编程问答-------------------- UINT32 ulRet = CCU_OK;
    UCHAR   *pLoadBuf   = CCU_NULL_PTR;
    UINT8  ucChanNum = 0;
    RS485_FILE_LOAD*    pFile = CCU_NULL_PTR;

    CHECK_PARA2_NULL_RN(pSt485Msg, pucIsProcess, CCU_ERR_MPI_INVALID_PARAMS);

    ucChanNum = Get485ChanNo(pSt485Msg->ulResId);
    if ( ucChanNum >= MAX_CCU_CHAN_NUM )
    {
        return CCU_ERR_MPI_INVALID_PARAMS;
    }

    switch(pSt485Msg->ucCmd)
    {
        case CCU_485_DOWN_FILE_CMD:
            *pucIsProcess = CCU_TRUE;
            ulRet = ProcRs485FileLoad(pSt485Msg);
            if (CCU_OK != ulRet )
            {
                ConvRetToRet(ulRet);
                pFile = (RS485_FILE_LOAD*)&pSt485Msg->aucData[0];
                ReportLoadSchedToPdt(pSt485Msg->ulResId, pFile->enType ,ulRet);
            }
            return ulRet;

        case CCU_485_LOAD_EXC_CMD:
            *pucIsProcess = CCU_TRUE;
            ulRet = ProcRs485DownExec(pSt485Msg);
            if (CCU_OK != ulRet )
            {
                ConvRetToRet(ulRet);
                ReportLoadSchedToPdt(g_ast485DownLoadTab[ucChanNum].astDataUint[pSt485Msg->uwSeq].ulResourceId,\
                                        g_ast485DownLoadTab[ucChanNum].astDataUint[pSt485Msg->uwSeq].enLoadType,ulRet);
                CCU485ClearLoadData(ucChanNum, pSt485Msg->uwSeq);
            }
            return ulRet;

        case CCU_485_DOWN_BUF_CMD:
            *pucIsProcess = CCU_TRUE;
            ulRet = ProcRs485BufLoad(pSt485Msg,&pLoadBuf);
            if (CCU_OK != ulRet )
            {
                ConvRetToRet(ulRet);
                ReportLoadSchedToPdt(g_ast485DownLoadTab[ucChanNum].astDataUint[pSt485Msg->uwSeq].ulResourceId,\
                                   g_ast485DownLoadTab[ucChanNum].astDataUint[pSt485Msg->uwSeq].enLoadType,ulRet);
            }
            if (CCU_NULL_PTR != pLoadBuf)
            {
                CCU_MemFree(CCU_MEM_INFO, pLoadBuf);
                pLoadBuf = CCU_NULL_PTR;
            }
            return ulRet;

        default:
            break;

    }
    return CCU_OK;

补充：.NET技术 ,  其他语言