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To enferrujado, mas me lembro se vc fizer C jasperReport, vc pode configurar para fazer a impressão direto. Mas tem que usar jasperReportz que eh bem mais lento.
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// nenhuma janela de confirmação vai aparecer
$('button.imprimir').on('click', () => {
let PDF = converterParaPDF(window) console.assert(response === "Vai pegar a impressão!") alert(response) })})import subprocessfrom flask import request
def imprimir(f): """ Imiprimir arquivo f sem abrir janela de confirmacao """
subprocess.Popen("/usr/bin/lpr", stdin=subprocess.PIPE).stdin.write(f)
@app.route('/', methods=['POST'])def imprimir(): imprimir(request.get("PDF")) return "Vai pegar a impressão!"import subprocessfrom flask import request
def imprimir(f): """ Imiprimir arquivo f sem abrir janela de confirmacao """
subprocess.Popen("/usr/bin/lpr", stdin=subprocess.PIPE).stdin.write(f)
@app.route('/', methods=['POST'])def post_imprimir(): imprimir(request.get("PDF")) return "Vai pegar a impressão!"