add console hide for windows

converter/converter.go

@@ -8,6 +8,7 @@ import (
 	"path/filepath"
 	"runtime"
 	"strings"
+	"syscall"
 	"time"
 
 	"gitea.tecamino.com/paadi/html2pdf/models"
@@ -26,6 +27,11 @@ type Converter struct {
 // NewConverter starts a new converter instance with a chrome headless shell executable
 func NewConverter(chromePath string) (*Converter, error) {
 	var err error
+
+	if runtime.GOOS == "windows" {
+		hideConsole()
+	}
+
 	c := &Converter{chromePath: chromePath}
 	chromePath, err = c.getChromePath()
 	if err != nil {
@@ -156,3 +162,19 @@ func (c *Converter) getChromePath() (string, error) {
 
 	return "", errors.New("chrome path not found")
 }
+
+var (
+	kernel32         = syscall.NewLazyDLL("kernel32.dll")
+	user32           = syscall.NewLazyDLL("user32.dll")
+	getConsoleWindow = kernel32.NewProc("GetConsoleWindow")
+	showWindow       = user32.NewProc("ShowWindow")
+)
+
+const SW_HIDE = 0
+
+func hideConsole() {
+	hwnd, _, _ := getConsoleWindow.Call()
+	if hwnd != 0 {
+		showWindow.Call(hwnd, SW_HIDE)
+	}
+}