// Callback for display settings changes LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) switch (msg) case WM_DISPLAYCHANGE: g_bChanged = TRUE; break; case WM_SETTINGCHANGE: if (wParam == SPI_SETWORKAREA) g_bChanged = TRUE; break;
RECT rcMonitor = mi.rcMonitor; int width = rcMonitor.right - rcMonitor.left; int height = rcMonitor.bottom - rcMonitor.top;
RegisterClass(&wc); HWND hwnd = CreateWindowEx(0, CLASS_NAME, "MonitorWatcher", 0, 0, 0, 0, 0, HWND_MESSAGE, NULL, wc.hInstance, NULL); monitor default-monitor for windows 10 x64
double scale = dpiX / 96.0;
if (!hwnd) std::cerr << "Failed to create message window.\n"; return 1; // Callback for display settings changes LRESULT CALLBACK
return "Unknown";
char deviceName[128]; wcstombs(deviceName, mi.szDevice, 128); RECT rcMonitor = mi.rcMonitor
return DefWindowProc(hwnd, msg, wParam, lParam);
MONITORINFOEXW mi; mi.cbSize = sizeof(mi); GetMonitorInfoW(hDefault, &mi);
// Print current default monitor details void PrintDefaultMonitorInfo() POINT pt = 0, 0 ; HMONITOR hDefault = MonitorFromPoint(pt, MONITOR_DEFAULTTOPRIMARY);