Question

I am using the following code for generate a barcode and display the barcode in a current view

OBLinear *pLinear = [OBLinear new];
    [pLinear setNBarcodeType: OB_CODE128A];
    [pLinear setPDataMsg: [[NSString alloc] initWithString: (@"SUKUMAR")]];
    //[pLinear setPSupData: [[NSString alloc] initWithString: (@"14562")]];
    [pLinear setFX: USER_DEF_BAR_WIDTH];
    [pLinear setFY: USER_DEF_BAR_HEIGHT];

    [pLinear setFLeftMargin: (USER_DEF_LEFT_MARGIN)];
    [pLinear setFRightMargin: (USER_DEF_RIGHT_MARGIN)];
    [pLinear setFTopMargin: (USER_DEF_TOP_MARGIN)];
    [pLinear setFBottomMargin: (USER_DEF_BOTTOM_MARGIN)];

    [pLinear setNRotate: (OB_Rotate0)];

    UIFont *pTextFont = [UIFont fontWithName: @"Arial" size: 8.0f];
    [pLinear setPTextFont: pTextFont];

 [pLinear drawWithView:view];

This is working fine, however I need to generated the barcode without showing it in the view.

How can I generate barcode images with out displaying it in the view.
If any one knows how to do this, please help me.

Thanks in advance…

Answer 1

I guess this is the interface of the class you’re using: OBLinear.h

If that’s so, it looks like you can generate a UIImage just by doing this:

UIImage *image;
[plLinear drawWithImage:&image];

Then you can do whatever you want with image. For example, you can convert it to a PNG using UIImagePNGRepresentation and upload the PNG data to your server, or save it to a file.