enumerate_monitors()

std::vector< MonitorInfo > MayaFlux::Core::GLFWSingleton::enumerate_monitors ( )

static

Enumerates all connected monitors and their information.

Returns

A vector of MonitorInfo structs for each connected monitor

Queries GLFW for the list of connected monitors and retrieves their properties such as name, dimensions, and current video mode.

Definition at line 93 of file GlfwSingleton.cpp.

{
    if (!s_initialized)
        return {};
 
    int count {};
    GLFWmonitor** monitors = glfwGetMonitors(&count);
 
    std::span<GLFWmonitor*> monitor_span(monitors, count);
 
    std::vector<MonitorInfo> infos;
    infos.reserve(count);
 
    GLFWmonitor* primary = glfwGetPrimaryMonitor();
 
    for (int i = 0; i < count; ++i) {
        auto* mode = glfwGetVideoMode(monitor_span[i]);
        int w_mm {}, h_mm {};
        glfwGetMonitorPhysicalSize(monitor_span[i], &w_mm, &h_mm);
 
        infos.push_back({ .id = i,
            .name = glfwGetMonitorName(monitor_span[i]),
            .width_mm = w_mm,
            .height_mm = h_mm,
            .current_mode = {
                .width = static_cast<uint32_t>(mode->width),
                .height = static_cast<uint32_t>(mode->height),
                .refresh_rate = static_cast<uint32_t>(mode->refreshRate),
                .red_bits = static_cast<uint8_t>(mode->redBits),
                .green_bits = static_cast<uint8_t>(mode->greenBits),
                .blue_bits = static_cast<uint8_t>(mode->blueBits) },
            .is_primary = (monitor_span[i] == primary) });
    }
 
    return infos;
}

References count, and s_initialized.

Referenced by get_monitor(), and get_primary_monitor().

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