ok i further tweaked out the code...howeveer the emulatro crashes on the
following line.. this is when i retrieve the bitmap from the data base, in
the debugger non of these values that are sent to WinDrawBitmap are null.
following this is my function....
if (gBitmapPtr)
WinDrawBitmap( gBitmapPtr, theBounds.topLeft.x,
theBounds.topLeft.y );
Err RetrieveBitMap()
{
Err theError;
UInt16 theIndex = 0;
MemHandle theRecHandle;
void * theRecPtr;
UInt32 theSize;
RectangleType theBounds;
GetSignatureGadgetBounds( &theBounds );
// create it. This database will be used to store the bitmap.
gBitmapDB = DmOpenDatabaseByTypeCreator(DB_TYPE,
DB_CREATOR, dmModeReadWrite);
if (!gBitmapDB)
{
// Create the database
theError = DmCreateDatabase(0, DB_NAME,
DB_CREATOR, DB_TYPE, false);
if (theError) return theError;
// Then open it
gBitmapDB =
DmOpenDatabaseByTypeCreator(DB_TYPE, DB_CREATOR, dmModeReadWrite);
if (!gBitmapDB) return (1);
}
else
{
// Try to find an existing bitmap. If one
exists, then use that
// as the default bitmap;
if (DmNumRecords( gBitmapDB ) > 0)
{
// Grab out database record and lock
it down if it exists
theRecHandle = DmGetRecord(
gBitmapDB, theIndex );
if (theRecHandle)
{
theRecPtr = MemHandleLock(
theRecHandle );
// Copy the data from the
record into the bitmap pointer global
theSize =
MemPtrSize(theRecPtr);
gBitmapPtr = MemPtrNew(
theSize );
MemMove( gBitmapPtr,
theRecPtr, theSize );
// Finally, unlock the record handle
MemHandleUnlock(
theRecHandle );
}
}
}
if (gBitmapPtr)
WinDrawBitmap( gBitmapPtr, theBounds.topLeft.x,
theBounds.topLeft.y );
return theError;
}
what is casuing this to crash, and is there sample code for 3.5?
boaz
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