在没有页面设置的情况下打印-对纸张大小和方向的更改做出反应?

有一种方法虽然有点老套,但效果很好,那就是运行两个nsprint操作。

我们在应用程序的打印代码中使用此选项,以检测用户是否在打印面板中选择了普通打印机或收据打印机。应用程序为每种打印机打印完全不同的文档。

所以在pyobjc中,未经测试的代码:

def smartlyPrintView_(self, theViewToPrint):
    # set up and run an initial NSPrintOperation to get printInfo
    fakePrintOperation = NSPrintOperation.printOperationWithView_(theViewToPrint)
    NSPrintOperation.setCurrentOperation_(fakePrintOperation)

    if NSPrintPanel.printPanel().runModal() == True:
        # get the printInfo so we can do stuff with it
        printInfo = fakePrintOperation.printInfo()
        # get rid of our fakePrintOperation
        NSPrintOperation.currentOperation().cleanUpOperation()

        # do stuff

        # run a real NSPrintOperation without a printPanel
        realPrintOperation = NSPrintOperation.printOperationWithView_printInfo_(theViewToPrint, printInfo)
        realPrintOperation.setShowsPrintPanel_(False)
        realPrintOperation.runOperation()

    else:
        NSPrintOperation.currentOperation().cleanUpOperation()

将此转换为OBJ-C的配方:

添加一些变量声明,用冒号替换下划线,并用方法的子句交错参数。混合半杯面粉和一把半冒号。用小火炖30分钟,然后上桌。祝你好运: