是否有API来获取高级打印机设备设置？

Question

我需要通过win32 api获取特定打印机支持的打印机文档功能。

我所指的选项会在下图中显示样本打印机。右键单击打印机图标和单击首选项，然后单击对话框中的高级选项卡，即可获得此对话框。

任何人都可以告诉我需要api我需要打电话，还有其他什么？

我的目标是Windows Windows XP +并使用vb6。

Answer 1

DeviceCapabilities功能是只读的。您正在寻找的是DocumentProperties function。 DeviceCapabilities实际上相当过时，应该在很久以前就已经过时了，因为它假设只有一个用户而单个应用程序正在使用打印机。您不希望为每个打印作业设置打印机属性;您想为当前的打印作业设置文档属性。 DocumentProperties函数将为您执行此操作，但请密切注意上面链接中有关如何进行更改的说明。这是一个不必要的复杂功能。

Answer 2

我认为您正在寻找的是来自winspool.drv的DeviceCapabilities。来自Microsoft的Sample代码。现在大多数在线文档是针对.Net的，所以我从Dan Appleman's Visual Basic Programmer's Guide to the Win32 API输入了VB6定义

VB6的声明是：

Declare Function DeviceCapabilities& Lib "winspool.drv" Alias "DeviceCapabilitiesA" (ByVal lpDeviceName as String, ByVal lpPort as String, ByVal iIndex as Long, ByVal lpOutput as String, ByVal lpDeviceMode as Long)

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根据您的评论，您需要使用DocumentProperties，它可用于检索或修改DevMode结构。它可能有也可能没有你想要的东西。你最好的选择是得到上面的书，第12章有丰富的信息。另外看你的照片看起来你正在使用一些POS打印件，你应该查阅制造商文档，了解打印机可能支持的特定API。

Declare Function DocumentProperties& Lib "winspool.drv" Alias "DocumentPropertiesA" (ByVal  hwnd as Long, ByVal hPrinter as Long, ByVal pDeviceName as String, ByVal pDeviceModeOutput as Long, ByVal pDeviceModelInput as Long, ByVal fMode as Long)

DevMode结构

Public Const CCHDEVICENAME = 32
Public Const CCHFORMNAME = 32

Type DEVMODE
    dmDeviceName as String * CCHDEVICENAME
    dmSpecVersion as Integer
    dmDriverVersion as Integer
    dmSize as Integer
    dmDriverExtra as Integer
    dmFields as Long
    dmOrientation as Integer
    dmPaperSize as Integer
    dmPaperLength as Integer
    dmPaperWidth as Integer
    dmScale as Integer
    dmCopies as Integer
    dmDefaultSource as Integer
    dmPrintQuality as Integer
    dmColor as Integer
    dmDuplex as Integer
    dmYResolution as Integer
    dmTTOption as Integer
    dmCollate as Integer
    dmFormName as String * CCHFORMNAME
    dpBitsPerPixel as Integer
    dmBitsPerPel as Long
    dmPelWidth as Long
    dmPelHeight as Long
    dmDisplayFlags as Long
    dmDisplayFrequency as Long
    dmICMMethod as Long
    dmICMIntent as Long
    dmMediaType as Long
    dmDitherType as Long
    dmReserved1 as Long
    dmReserved2 as Long
End Type