internal static byte[] ConvertHGlobalToByteArray(SafeHGlobalHandle hGlobal)
{
int length = SafeNativeMethods.GlobalSize(hGlobal).ToInt32();
if (length <= 0)
{
return(null);
}
byte[] destination = new byte[length];
IntPtr source = SafeNativeMethods.GlobalLock(hGlobal);
if (IntPtr.Zero == source)
{
throw System.ServiceModel.DiagnosticUtility.ExceptionUtility.ThrowHelperError(new OutOfMemoryException());
}
try
{
Marshal.Copy(source, destination, 0, length);
}
finally
{
SafeNativeMethods.GlobalUnlock(hGlobal);
}
return(destination);
}
internal static byte[] ConvertHGlobalToByteArray(SafeHGlobalHandle hGlobal)
{
// this has to be Int32, even on 64 bit machines since Marshal.Copy takes a 32 bit integer
Int32 sizeOfByteArray = (SafeNativeMethods.GlobalSize(hGlobal)).ToInt32();
if (sizeOfByteArray > 0)
{
byte[] byteArray = new Byte[sizeOfByteArray];
IntPtr pBuff = SafeNativeMethods.GlobalLock(hGlobal);
if (IntPtr.Zero == pBuff)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new OutOfMemoryException());
}
try
{
Marshal.Copy(pBuff, byteArray, 0, sizeOfByteArray);
}
finally
{
SafeNativeMethods.GlobalUnlock(hGlobal);
}
return(byteArray);
}
return(null);
}