How to get the Monitor Screen Resolution from a hWnd?

Question

How to get the monitor screen resolution from a hWnd?

I am using a hWnd because the window could be located on any one of multiple monitors.

i.e. the hWnd top/left coordinate is on a Monitor that has a Screen Resolution of 800 x 600.

I program in a language called PL/B and it allows calling Windows API.

What Window APIs can be used?

Answer 1

Here's a C++ code example that works for me:

HMONITOR monitor = MonitorFromWindow(hwnd, MONITOR_DEFAULTTONEAREST); MONITORINFO info; info.cbSize = sizeof(MONITORINFO); GetMonitorInfo(monitor, &info); int monitor_width = info.rcMonitor.right - info.rcMonitor.left; int monitor_height = info.rcMonitor.bottom - info.rcMonitor.top;