Struct FilePrinterDevice 

pub struct FilePrinterDevice<T: FilePrinterProvider> { /* private fields */ }

A virtual “print-to-file” printer device backed by a built-in Windows driver.

Each instance installs a freshly-created printer port (a unique temp file) and a printer using the driver supplied by T. Dropping the value removes the printer, the port, and the backing temp file. Unlike null_device, this type is not thread-local or shared ? each FilePrinterDevice owns its own printer; if you need several, construct several.

use winprint_ext::test_utils::file_device::{FilePrinterDevice, PwgRaster};

let dev = FilePrinterDevice::<PwgRaster>::new().unwrap();
println!("printer: {}", dev.device().name());
println!("output:  {}", dev.file_path().display());
// ... use dev.device() for printing ...

Implementations

impl<T: FilePrinterProvider> FilePrinterDevice<T>

pub fn new() -> Result<Self>

Create a new virtual “print-to-file” printer.

On first call per-process (per driver) this installs the driver and cleans up leftover printers from previous crashed runs. Subsequent calls only create the port and printer.

pub fn device(&self) -> &PrinterDevice

Returns the underlying PrinterDevice.

pub fn file_path(&self) -> &Path

Returns the path to the backing file that the driver spools its output into.

Trait Implementations

impl<T: FilePrinterProvider> Drop for FilePrinterDevice<T>

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.