public static Size GetClientAreaSize(int processId)
{
Size size = new Size(1, 1);
Process process = Process.GetProcessById(processId);
if (process == null)
{
return(size);
}
var rect = new Win32Api.RECT();
return(Win32Api.GetClientRect(process.MainWindowHandle, out rect) ?
new Size(rect.Right, rect.Bottom) : size);
}
public static Size GetWindowSize(int processId)
{
Size size = new Size();
Process process = Process.GetProcessById(processId);
if (process == null)
{
return(size);
}
var rect = new Win32Api.RECT();
// Windows 10における1pxの枠を除去するため-2する
return(Win32Api.DwmGetWindowAttribute(process.MainWindowHandle, Win32Api.DWMWA_EXTENDED_FRAME_BOUNDS, out rect, 16) == 0 ?
new Size(rect.Right - rect.Left - 2, rect.Bottom - rect.Top - 2) : size);
}
public static Point GetWindowPoint(int processId)
{
Point point = new Point();
Process process = Process.GetProcessById(processId);
if (process == null)
{
return(point);
}
var rect = new Win32Api.RECT();
// Windows 10における1pxの枠を除去するため+1する
return(Win32Api.DwmGetWindowAttribute(process.MainWindowHandle, Win32Api.DWMWA_EXTENDED_FRAME_BOUNDS, out rect, 16) == 0 ?
new Point(rect.Left + 1, rect.Top + 1) : point);
}