New Post: Feeder doesn't work

if(this._twain32.Capabilities.FeederEnabled.IsSupported(TwQC.Set)) {
            this._twain32.Capabilities.FeederEnabled.Set(true);

            if(this._twain32.Capabilities.AutoFeed.IsSupported(TwQC.Set)) {
                this._twain32.Capabilities.XferCount.Set(true);
            }
 
            if(this._twain32.Capabilities.XferCount.IsSupported(TwQC.Set)) {
                this._twain32.Capabilities.XferCount.Set(-1);
            }
        }