Ana,
I think that CreatorIDs can only be four characters (bytes?), so 'Airport'
should cause an error. If this compiles then perhaps I am mistaken. What
mode are you using (dmReadWrite allows for both reading and writing). Are
you checking the error value after the create, and then does the Open
function return a valid (ie non null) pointer? Also, you present the
functions in reverse order, first open, then create. The functions you are
using are correct, but here is how I use them:
*dbP = DmOpenDatabaseByTypeCreator(type, creator, mode);
err = DmGetLastErr();
if(!*dbP) // need to create the db
{
err = DmCreateDatabase(0, name, creator, type, false);
if(err)
return err;
*dbP = DmOpenDatabaseByTypeCreator(type, creator, mode);
if(!*dbP)
return DmGetLastErr();
}
It looks like you are using appName instead of db name for your name on the
create command. This will cause a problem. Your database cannot have the
same name as the app.
Paul
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of ana
erdozain
Sent: Friday, May 17, 2002 3:06 PM
To: Palm Developer Forum
Subject: create a database..
Hi!
I am trying to create a database in my application.
To create the database and open it I use these
functions:
dbP = DmOpenDatabaseByTypeCreator(
appDBType,appCreator, mode);
error = DmCreateDatabase (0, appName,
appCreator,appDBType, false);
where appDBType is data and appCreator is 'Airport'.
When I load this application in the pda (with hot
sync) and the application runs, if try to get data
from the database an error occurs, and the application
must be reset.
1- Could this error happens by the way to open or
create this database? Because in one example, I have
seen, that the variable appCreator isnt definer in
the own program.
2-which launch codes I need?
SysAppLaunchCmdInitDatabase and
sysAppLaunchCmdSyncNotify. Are needed?
I get the data from a connection, I open a socket (I
use net library) and I receive a string of data, I
convert this string of data to the database.
Thank you in advanced!
Ana
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