Using barcode scanner in user form

[dktx2016]

I have created a user form with a few textbox an I'm trying to scan a barcode into the first textbox. When doing so the value of the barcode doesn't appear, the only thing that happens is that the focus is moving to the next textbox. When I use the scanner on a sheet, the scanner works and the value of the barcode appears into a cell and the the focus move to the next cell down.