38 lines
628 B
Go
38 lines
628 B
Go
package printer
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import (
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"fmt"
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"io"
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"os"
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"os/exec"
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)
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type Printer struct {
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devicePath string
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}
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func New(devicePath string) *Printer {
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return &Printer{
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devicePath: devicePath,
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}
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}
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func (p *Printer) PrintText(text string) error {
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lp, err := os.OpenFile(p.devicePath, os.O_WRONLY, 0)
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if err != nil {
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return fmt.Errorf("failed to open: %v", err)
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}
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defer lp.Close()
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cmd := exec.Command("./printtext", text)
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cmd.Stdout = lp
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return cmd.Run()
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}
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func (p *Printer) PrintImage(data io.Reader, caption string) error {
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cmd := exec.Command("./printimg", p.devicePath, caption)
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cmd.Stdin = data
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return cmd.Run()
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}
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