Thanks Lukas. 2011/9/16 Lukas Zeller <luz(a)plan44.ch&gt; > Hello Roger, > > On Sep 16, 2011, at 16:28 , Roger KeIrad wrote: > > > hello, > > any help please? > > thanks in advance. > > > There are a number of GetValueXXX variants. GetValue() is only for single > values. > > For arrays, you need to use GetValueByID(), which has a arrIndex > parameter. To get the ID for a name, use GetValueID(). You can get the size > of the array by appending VALSUFF_ARRSZ to the array field name, and call > GetValue() with that - you'll get the number of elements back. > > See sysync_SDK/Sources/enginemodulebase.h for more detailed description of > all the Get/SetValue functions, and engine_defs.h for the VALNAME_xxx and > VALSUFF_xxx explanations. > > Pseudo code to get all elements of an array would look like: > SDK_InterfaceType > > // get size of array > uInt16 arraySize; > memsize n; > GetValue("arrayFieldName" VALSUFF_ARRSZ, VALTYPE_INT16, > &arraySize,sizeof(arraySize),n); > > // get elements of array > long arrayFieldID = GetValueID("arrayFieldName"); > for (int i=0; i<arraySize; i++) { > GetValueByID(arrayFieldID, i, VALTYPE_XXX, &buffer, maxSize, n); > // do something with the value > } > > > > Below is a more elaborate routine, which prints out all values for a given > aItemKey, including array fields: > > > /* Show all fields/variables of item represented by aItemKey */ > static void ShowFields(DB_Callback cb, appPointer aItemKey) > { > const stringSize maxstr = 128; > appChar fnam[maxstr]; > appChar fval[maxstr]; > appChar ftz[maxstr]; > uInt16 fvaltype; > uInt16 farrsize; > uInt16 arridx; > bool fisarray; > uInt32 valsize; > TSyError err; > uInt32 valueID,nameFlag,typeFlag,arrszFlag,tznamFlag; > // set desired time mode > cb->ui.SetTimeMode(cb, aItemKey, TMODE_LINEARTIME+TMODE_FLAG_FLOATING); > // get flags that can be combined with valueID to get attributes of a > value > nameFlag = cb->ui.GetValueID(cb, aItemKey, ".FLAG.VALNAME"); > typeFlag = cb->ui.GetValueID(cb, aItemKey, ".FLAG.VALTYPE"); > arrszFlag = cb->ui.GetValueID(cb, aItemKey, ".FLAG.ARRAYSIZE"); > tznamFlag = cb->ui.GetValueID(cb, aItemKey, ".FLAG.TZNAME"); > // iterate over all fields > // - start iteration > valueID = cb->ui.GetValueID(cb, aItemKey, VALNAME_FIRST); > while (valueID != KEYVAL_ID_UNKNOWN && valueID != KEYVAL_NO_ID) { > // get field name > err = cb->ui.GetValueByID(cb, > aItemKey, > valueID + nameFlag, > 0, > VALTYPE_TEXT, > fnam, > maxstr, > &valsize > ); > // get field type > err = cb->ui.GetValueByID(cb, > aItemKey, > valueID + typeFlag, > 0, > VALTYPE_INT16, > &fvaltype, > sizeof(fvaltype), > &valsize > ); > // check if array, and if array, get number of elements > err = cb->ui.GetValueByID(cb, > aItemKey, > valueID + arrszFlag, > 0, > VALTYPE_INT16, > &farrsize, > sizeof(farrsize), > &valsize > ); > fisarray = err==LOCERR_OK; > > if (!fisarray) { > // single value > err = cb->ui.GetValueByID(cb, aItemKey, valueID, 0, VALTYPE_TEXT, > fval, maxstr, &valsize); > if (err==LOCERR_OK) { > if (fvaltype==VALTYPE_TIME64) { > // for timestamps, get time zone name as well > cb->ui.GetValueByID(cb, aItemKey, valueID+tznamFlag, 0, > VALTYPE_TEXT, ftz, maxstr, &valsize); > DEBUG_(cb, "- %-20s (VALTYPE=%2hd) = %s > timezone=%s",fnam,fvaltype,fval,ftz); > } > else > DEBUG_(cb, "- %-20s (VALTYPE=%2hd) = '%s'",fnam,fvaltype,fval); > } > else > DEBUG_(cb, "- %-20s (VALTYPE=%2hd) : No value, > error=%hd",fnam,fvaltype,err); > } > else { > // array > DEBUG_(cb, "- %-20s (VALTYPE=%2d) = Array with %d > elements",fnam,fvaltype,farrsize); > // show elements > for (arridx=0; arridx<farrsize; arridx++) { > err = cb->ui.GetValueByID(cb, aItemKey, valueID, arridx, > VALTYPE_TEXT, fval, maxstr, &valsize); > if (err==LOCERR_OK) { > if (fvaltype==VALTYPE_TIME64) { > // for timestamps, get time zone name as well > cb->ui.GetValueByID(cb, aItemKey, valueID+tznamFlag, arridx, > VALTYPE_TEXT, ftz, maxstr, &valsize); > DEBUG_(cb, " %20s[%3hd] = %s > timezone=%s",fnam,arridx,fval,ftz); > } > else > DEBUG_(cb, " %20s[%3hd] = '%s'",fnam,arridx,fval); > } > else > DEBUG_(cb, " %20s[%3hd] : No value, > error=%hd",fnam,arridx,err); > } > } > // next value > valueID = cb->ui.GetValueID(cb, aItemKey, VALNAME_NEXT); > } // while more values > } /* ShowFields */ > >

Hello Roger, On Sep 22, 2011, at 16:25 , Roger KeIrad wrote: > Hello, > It is me again. > I have some troubles with PHOTO for synchronised contact. > I used the same idea to extract encoded value to decode it. > I tried with GetValue and GetValueByID but no chance. Both should work (the PHOTO is not an array field). Just pass VALTYPE_BUF as type, and provide a buffer large enough to get the binary photo data. To find out in advance how large the buffer needs to be, just call GetValue once with a NULL pointer as buffer or zero buffer size. This will return the needed size in the aValSize parameter, which you can use to allocate a buffer large enough to get the entire PHOTO. If you pass a buffer that is too small for the entire PHOTO data, you'll get LOCERR_TRUNCATED status. The data you get is binary data, usually a JPG. If you save the data 1:1 into a file, any image viewer program should be able to show it. Best Regards, Lukas Lukas Zeller, plan44.ch luz(a)plan44.ch - www.plan44.ch