EssGBeginZoomIn() begins a zoom-in.
ESSG_FUNC_M EssGBeginZoomIn (hGrid, usCells, pZoomCells, ulOptions);
ESSG_HGRID_T | hGrid |
ESSG_USHORT_T | usCells |
ESSG_PRANGE_T | pZoomCells |
ESSG_ULONG_T | ulOptions |
If successful, returns ESSG_STS_NOERR.
None.
ESSG_VOID_T ESSG_BeginZoomIn (ESSG_HGRID_T hGrid) { ESSG_FUNC_M sts = ESS_STS_NOERR; ESSG_PPDATA_T ppDataIn; ESSG_PPDATA_T ppDataOut; ESSG_RANGE_T rDataRangeIn, rDataRangeOut; ESSG_ULONG_T ulOptions; ESSG_USHORT_T usCells; ESSG_RANGE_T pZoomCells; ESSG_USHORT_T usState; /* connect the grid to a database on the server */ sts = EssGConnect(hGrid, "Rainbow", "Admin", "Password", "Demo", "Basic", ESSG_CONNECT_DEFAULT); if(sts == 0) { ppDataIn = BuildTable(&rDataRangeIn); ulOptions = ESSG_ZOOM_DOWN | ESSG_ALLLEVELS; pZoomCells.ulRowStart = 0; pZoomCells.ulColumnStart = 2; pZoomCells.ulNumRows = 1; pZoomCells.ulNumColumns = 1; usCells = 1; /* start the zoom in operation */ sts = EssGBeginZoomIn(hGrid, usCells, &pZoomCells, ulOptions); } if(sts == 0) { /* send the entire grid to define the query */ sts = EssGSendRows(hGrid, &rDataRangeIn, ppDataIn); } if(sts == 0) { /* perform the zoom-in */ sts = EssGPerformOperation(hGrid, 0); /* Free the built data */ FreeTwoDim(ppDataIn, rDataRangeIn.ulNumRows); } if (sts == 0) { /* determine the results of the zoom-in */ sts = EssGGetResults(hGrid, 0, &rDataRangeOut, &usState); } if(sts ==0) { /* get all the data */ sts = EssGGetRows(hGrid, 0, &rDataRangeOut, &rDataRangeOut, &ppDataOut); } if(sts == 0) { DisplayOutput(ppDataOut, rDataRangeOut); /* Free the returned data */ EssGFreeRows(hGrid, &rDataRangeOut, ppDataOut); } if( !sts) { EssGEndOperation(hGrid, 0); EssGDisconnect(hGrid, 0); } }