是否可以更改最大 WIA 扫描分辨率？
我必须在项目中使用 Canon 9000F 扫描仪。我在使用 TWAIN 驱动程序时遇到一些问题（请参阅：使用 TWAIN 扫描 2400 DPI 图片时是否常见内存问题？），因此我尝试使用 WIA 作为替代方案，但内置的扫描对话框仅允许最大分辨率600 DPI，但我知道至少 1200 DPI 应该是可能的。
是否可以覆盖这些值？ 限制从何而来？这是由驱动程序引起的还是 WIA 本身的某个地方进行了配置？ 如果我降低到较低的水平并自己完成所有这些扫描功能，我是否会面临同样的限制？
问题不再相关。决定使用 TWAIN 驱动程序。
I have to use the Canon 9000F scanner in a project. I am having some troubles with the TWAIN driver (see: Are memory issues common when scanning 2400 DPI pictures with TWAIN?), so I tried WIA as an alternative, but the built in scanning dialog only allows a maximum resolution of 600 DPI, but I know that at least 1200 DPI should be possible.
Is it possible to override these values?
Where do the limitations come from? Is this caused by the driver or is this configured somewhere in WIA itself?
If I went to down to a lower level and do all these scanning functions myself would I face the same limitations?
Question no longer relevant. Decided to use the TWAIN driver.
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我确信您现在可能已经找到了另一个解决方案，但我今天在解决类似问题时偶然发现了这篇文章，我想分享我的解决方法。
就我而言，我们使用的是 Plustek A320 扫描仪，支持高达 1600dpi 的光学分辨率。实际的 TWAIN 驱动程序似乎会导致问题（像您所看到的那样频繁出现内存错误），因此我想使用 WIA 驱动程序进行尝试。当然，WIA 允许你选择的分辨率最多只有 600 个。
我最终选择的是一些驱动程序 inf hackery。我编辑了与驱动程序安装程序一起打包的 261U.inf 文件，在本节中添加了粗体行：
然后，我通过设备管理器手动重新安装了驱动程序，明确选择了适当的 .inf 文件。重新启动后，我可以在通过 Windows 图像采集向导启动扫描时选择 1200dpi 分辨率。
I'm sure you've probably found another solution by now, but I stumbled across this post today while I was fighting a similar problem and I'd like to share my workaround.
In my case, we are using a Plustek A320 scanner which supports up to 1600dpi optical resolution. The actual TWAIN driver seems to cause issues (frequent memory errors like you were seeing) so I wanted to try it using the WIA driver. Of course, the resolutions that WIA lets you choose only go up to 600.
What I eventually settled on was some driver inf hackery. I edited the 261U.inf file packaged with the driver installer, adding the bolded line in along with this section:
I then manually reinstalled the driver through Device Manager, explicitly selecting the appropriate .inf file. After a reboot, I'm able to select the 1200dpi resolution when initiating a scan via the Windows Image Acquisition wizard.