how to catch wincewebkit exception crash?

[achellies]

Dear all, when i compile the wincewebkit, i select the C++ compile
options "Enable C++ Exceptions" as "no" to make the wincewebkit
compiled much smaller,
as i know the "Enable C++ Exception" has three options, there are
"No", "Yes (/EHsc)", "Yes With SEH Exceptions (/Eha)", and the
default option is "Yes (/EHsc)", but the option is only used to catch
the C++ exception, and with this option the size of wincewebkti is
compiled about 11M, but there are also so extern C functions in the
wincewebkit, so i want to catch those exceptions, then i select the
"Yes With SEH Exceptions (/Eha)" option, but the size of wincewebkit
is become larger (about 13M), so i compile wincewebkit again with the
"No" option, then the size of wincewebkit is become much smaller
(about 8M), but i could not use the "try{...} catch(...){....}" to
catch the exceptions that wincewebkit shows, so is anyone has any
ideas to build the wincewebkit much smaller and also could be catch
exceptions with "try{....} catch(...){...}"?