c++ - 如何将 PHYSICAL_MONITOR 与监视器 DeviceID 关联

Question

我需要帮助的关联PHYSICAL_MONITOR这是我从GetPhysicalMonitorsFromHMONITOR获得与显示器DISPLAY_DEVICE.DeviceID(如 “\？\DISPLAY＃GSM59AB＃5 932a802＆1＆UID261＃{e6f07b5f-ee97-4a90-b076-33f57bf4eaa7}”)，这是从EnumDisplayDevices，旗EDD_GET_DEVICE_INTERFACE_NAME使用，或以某种方式从 DISPLAY_DEVICE.DeviceID 获取 PHYSICAL_MONITOR，反之亦然。
我需要将它们都关联起来，因为:

HANDLE PHYSICAL_MONITOR.hPhysicalMonitor 将用于 lowlevelmonitorconfigurationapi，因为我需要向监视器发送命令。

DISPLAY_DEVICE.DeviceID 用于使用 SetupAPI 从注册表中获取 EDID 结构(前 128 个字节对我来说足够了，只需要制造商代码和型号)

1 和 2 已完成，问题是将 id 与物理监视器相关联。
Also it is possible to get 所有监视器仅使用 SetupAPI 从注册表中监控 EDID，但在这种情况下，不可能获得物理监视器 HANDLE。
MSDN 上的 Same question，未解决((
我还注意到一件事:
此代码枚举所有监视器:

DWORD DispNum = 0;
DISPLAY_DEVICE DisplayDevice;
// Initialize DisplayDevice.
ZeroMemory(&DisplayDevice, sizeof(DisplayDevice));
DisplayDevice.cb = sizeof(DisplayDevice);

while ((EnumDisplayDevices(NULL, DispNum, &DisplayDevice, 0)))
{
    std::wstring deviceName = DisplayDevice.DeviceName;
    DISPLAY_DEVICE DisplayDeviceM;
    ZeroMemory(&DisplayDeviceM, sizeof(DisplayDeviceM));
    DisplayDeviceM.cb = sizeof(DisplayDeviceM);
    int monitorIndex = 0;
    while (EnumDisplayDevices(deviceName.c_str(), monitorIndex, &DisplayDeviceM, EDD_GET_DEVICE_INTERFACE_NAME))
    {
        std::wstring monitorID = DisplayDeviceM.DeviceID;
        ++monitorIndex;
    }
    DispNum++;
}

按照与此相同的顺序:

BOOL CALLBACK EnumProc2(HMONITOR hMonitor, HDC hdcMonitor, LPRECT lprcMonitor, LPARAM dwData)
{
LPPHYSICAL_MONITOR pMons = NULL;
DWORD i, mcnt;

MONITORINFOEX mi;
ZeroMemory(&mi, sizeof(mi));
mi.cbSize = sizeof(mi);

GetMonitorInfo(hMonitor, &mi);

DISPLAY_DEVICE dd;
ZeroMemory(&dd, sizeof(dd));
dd.cb = sizeof(dd);
EnumDisplayDevices(mi.szDevice, 0, &dd, EDD_GET_DEVICE_INTERFACE_NAME);

monitorModelMnufac MdlManuf = findMonitorModelManufactFromEDID(dd.DeviceID);

if (!GetNumberOfPhysicalMonitorsFromHMONITOR(hMonitor, &mcnt)) return TRUE;
pMons = (LPPHYSICAL_MONITOR)malloc(mcnt * sizeof(PHYSICAL_MONITOR));
if (GetPhysicalMonitorsFromHMONITOR(hMonitor, mcnt, pMons))
    for (i = 0; i < mcnt; i++)
    {
        AddToMonHandles(pMons[i].hPhysicalMonitor, MdlManuf);
    }
free(pMons);
return TRUE;
}

物理监视器 HANDLE 是 0、1、2 等等，所以我可以从“monitorIndex”制作 HANDLE，但我不确定这样做是否安全。
我还查看了注册表以找到物理监视器句柄，但没有。
还找到了有用的函数 VideoPortDDCMonitorHelper，但正如我在谷歌上搜索的那样，它需要在驱动程序/过滤器中使用，并且不能从简单的可执行文件中使用。
还尝试反转 Windows dll，所有调用似乎都是从 WIN32U.dll 发出的，而 Ghidra 不想反编译它，或者我只是个菜鸟。
请帮帮我伙计们:)

Answer 1

我找到了一些有用的信息，希望对您有所帮助。

...
while ((EnumDisplayDevices(NULL, DispNum, &DisplayDevice, 0)))
    {
        std::wstring deviceName = DisplayDevice.DeviceName;
        DISPLAY_DEVICE DisplayDeviceM;
        ZeroMemory(&DisplayDeviceM, sizeof(DisplayDeviceM));
        DisplayDeviceM.cb = sizeof(DisplayDeviceM);
        int monitorIndex = 0;
        while (EnumDisplayDevices(deviceName.c_str(), monitorIndex, &DisplayDeviceM, EDD_GET_DEVICE_INTERFACE_NAME))
        {
            wcout << "deviceName:" << deviceName << endl;
            std::wstring monitorID = DisplayDeviceM.DeviceID;
            wcout <<"monitorID :"<< monitorID<< endl;
            ++monitorIndex;            
        }
        DispNum++;
    }
...

输出:

deviceName: \\.\DISPLAY1

然后使用 EnumDisplayMonitors获取 HMONITOR并将其用作 GetMonitorInfo 的参数.

static BOOL CALLBACK MonitorEnum(HMONITOR hMon, HDC hdc, LPRECT lprcMonitor, LPARAM pData)
{
    cout << "hmonitor:" << hMon << endl;

    MONITORINFOEX mi;
    mi.cbSize = sizeof(mi);

    GetMonitorInfo(hMon, (LPMONITORINFO)&mi);

    wcout << "deviceName: "<<mi.szDevice << endl;

    DWORD cPhysicalMonitors;
    BOOL bSuccess = GetNumberOfPhysicalMonitorsFromHMONITOR(hMon, &cPhysicalMonitors);
    cout << "GetNumber: " << bSuccess << ", number of physical monitors: " << cPhysicalMonitors << endl;

    LPPHYSICAL_MONITOR pPhysicalMonitors = (LPPHYSICAL_MONITOR)malloc(cPhysicalMonitors * sizeof(PHYSICAL_MONITOR));
    bSuccess = GetPhysicalMonitorsFromHMONITOR(hMon, cPhysicalMonitors, pPhysicalMonitors);
    cout << "GetPhysicalMonitor: " << bSuccess << endl
        << "Handle: " << pPhysicalMonitors->hPhysicalMonitor << endl
        << "Description: ";
    wcout << (WCHAR*)(pPhysicalMonitors->szPhysicalMonitorDescription) << endl;;

    D(pPhysicalMonitors->hPhysicalMonitor);

    DestroyPhysicalMonitors(cPhysicalMonitors, pPhysicalMonitors);
    free(pPhysicalMonitors);

    cout << "---------------------------------------" << endl;

    return TRUE;
}

...

EnumDisplayMonitors(0, 0, MonitorEnum, NULL);

输出:

deviceName: \\.\DISPLAY1

如果两个输出相同，则它们对应于同一个监视器。最后，我们可以使用得到的 HMONITOR作为 GetPhysicalMonitorsFromHMONITOR的参数，这样我们就可以得到 hPhysicalMonitor我们需要。