single-line text box, type digital serial number is used to input, now requires:

Can read from the barcode reader read card equipment such as serial number, limit the input from the keyboard or edit,

Create a custom event, message number is pbm_enchange, and then judge whether the current text is a bar code, if it is not clear

CodePudding user response:

It is best not to edit text boxes, data directly by the barcode reader interface, or to determine the data source is a reader or keyboard, is very troublesome,

CodePudding user response:

Can't find the problem of the building Lord look like

CodePudding user response:

With an edit text box,

CodePudding user response:

On the top floor,