UpdateDriverForPlugAndPlayDevices 错误告诉我我*不*做我正在做的事情

我正在研究一种安装驱动程序的方法.由于这必须在多个平台上运行，因此我正在向 devcon 和 dpinst 发出请求，以便在需要时完成驱动程序安装/更新/删除的工作.在测试时，我在向 devcon 进行炮击时遇到了问题.为了隔离，我编写了一个小应用程序来执行 devcon 在更新 参见此处，使用来自 WinDDK 的 devcon 源作为参考.我在 Setup API(实际上是 Newdev.dll 的一部分)的 UpdateDriverForPlugAndPlayDevices() 中遇到了一些问题 见这里.源代码在这里:

I'm working on a means of installing a driver. Because of the multiple platforms on which this must work, I'm shelling-out to both devcon and dpinst to do the work of driver install/update/removal when needed. While testing, I'm having problems with the shelling out to devcon. To isolate, I wrote a small app to do what devcon does in update see here, using the devcon source from the WinDDK for reference. I'm having some problems with UpdateDriverForPlugAndPlayDevices() from Setup API (actually part of Newdev.dll) see here. The source code is here:

#include <iostream>
#include <Windows.h>
#include <newdev.h>

int main(int argc, char** argv) {
    // Go through the same steps as does dev con for this update crap
    char infFile[MAX_PATH];

    if(3 > argc) {
        std::cerr << "an INF and HW ID must be specified" << std::endl;
        return 1;
    }

    DWORD result(GetFullPathName(argv[1], MAX_PATH, infFile, NULL));
    if((result >= MAX_PATH) || (0 == result)) {
        std::cerr << "path is too long for buffer" << std::endl;
        return 1;
    }

    if(GetFileAttributes(infFile) == -1) {
        std::cerr << "file doesn't exist" << std::endl;
        return 1;
}

    BOOL reboot(FALSE);
    if(!UpdateDriverForPlugAndPlayDevices(NULL, argv[2], infFile, INSTALLFLAG_FORCE, &reboot)) {
        std::cerr << "Failed to install the driver.  Code: "
                  << GetLastError()
                  << std::endl;
        return 2;
}

    if(reboot) {
        std::cout << "A reboot is needed to complete driver install"
                  << std::endl;
    }

    return 0;
}

当 UpdateDriverForPlugAndPlayDevices() 返回 false 时程序失败.然后打印 GetLastError() 返回的错误代码，这样我就知道出了什么问题.返回的错误代码:259.根据 this 资源表示这是 ERROR_NO_MORE_ITEMS.根据 UpdateDriverForPlugAndPlayDevices() 的链接，该函数在以下情况下返回此错误代码:该函数找到了 HardwareId 值的匹配项，但指定的驱动程序并不比当前驱动程序更好的匹配，并且调用者做了not 指定 INSTALLFLAG_FORCE 标志."您会从我的代码中注意到我确实指定了这个标志.

The program fails when UpdateDriverForPlugAndPlayDevices() returns false. This then prints the error code, returned by GetLastError(), so I'd know what went wrong. The error code returned: 259. According to this resource says this is ERROR_NO_MORE_ITEMS. According to the link for UpdateDriverForPlugAndPlayDevices(), this function returns this error code when, "The function found a match for the HardwareId value, but the specified driver was not a better match than the current driver and the caller did not specify the INSTALLFLAG_FORCE flag." You'll notice from my code that I did specify this flag.

我不知道从哪里开始.有人可以从这段代码中找出我遗漏了什么吗?这只是简单的感觉"，但我完全想念它.

I do not know where to go from here. Can someone please identify from this code what it is I'm missing? This just has the "feel" of something simple, but I'm totally missing it.

谢谢，安迪