How to get the type of connected monitor(s) on Windows XP?

In Windows XP, common methods to identify the type of connected monitor include using the Display Control Panel or programming approaches, such as leveraging the Windows API. Below, I will provide a detailed explanation of both methods:

1. Using the Display Control Panel

This is the simplest method for most users.

• Step 1: Click the "Start" button, then select "Control Panel".
• Step 2: In the Control Panel, locate and double-click the "Display" icon.
• Step 3: In the Display Properties window, switch to the "Settings" tab.
• Step 4: Click the "Advanced" button to access advanced properties.
• Step 5: In the Advanced Properties window, switch to the "Monitor" or "Display" tab, where the type of connected monitor and related information will be displayed.

2. Using Windows API

For developers, it is possible to obtain more detailed monitor information through programming. Below is a basic example using the Windows API:

• Step 1: Use the EnumDisplayDevices function to enumerate display devices on the system.
• Step 2: Retrieve detailed information for each display device using the DISPLAY_DEVICE structure.

c
#include <windows.h>
#include <iostream>

void DisplayMonitorInfo()
{
    DISPLAY_DEVICE dd;
    dd.cb = sizeof(dd);
    int deviceIndex = 0;
    while (EnumDisplayDevices(NULL, deviceIndex, &dd, 0))
    {
        std::cout << "Device Name: " << dd.DeviceName << std::endl;
        std::cout << "Device String: " << dd.DeviceString << std::endl;

        if (dd.StateFlags & DISPLAY_DEVICE_ACTIVE)
            std::cout << "Status: Active" << std::endl;
        else
            std::cout << "Status: Inactive" << std::endl;

        deviceIndex++;
        std::cout << std::endl;
    }
}

int main()
{
    DisplayMonitorInfo();
    return 0;
}

This code enumerates all connected display devices and prints their names, descriptions, and active status.

Summary

For general users, accessing monitor information via the Control Panel is the simplest method. For developers requiring automation or software development, using the Windows API is more appropriate. Both methods effectively help users or developers identify the type of connected monitor on Windows XP.