public static _Size MeasureText(string text, Font font)
{
if (string.IsNullOrEmpty(text))
{
return(_Size.Empty);
}
_Size result = _Size.DefaultFont;
using (WindowsGraphics grf = WindowsGraphics.CreateMeasurementWindowsGraphics())
{
// WindowsFont wf = WindowsGraphicsCacheManager.GetWindowsFont(font))
result = TextRenderer.MeasureText(grf.DeviceContext, text, font);
// WindowsGraphicsCacheManager.MeasurementGraphics.MeasureText(text, wf);
return(result);
}
}
internal Screen(IntPtr monitor, IntPtr hdc)
{
IntPtr screenDC = hdc;
if (!multiMonitorSupport || monitor == (IntPtr)PRIMARY_MONITOR)
{
// Single monitor system
//
bounds = SystemInformation.VirtualScreen;
primary = true;
deviceName = "DISPLAY";
}
else
{
// MultiMonitor System
// We call the 'A' version of GetMonitorInfoA() because
// the 'W' version just never fills out the struct properly on Win2K.
//
NativeMethods.MONITORINFOEX info = new NativeMethods.MONITORINFOEX();
SafeNativeMethods.GetMonitorInfo(new HandleRef(null, monitor), info);
bounds = Rectangle.FromLTRB(info.rcMonitor.left, info.rcMonitor.top, info.rcMonitor.right, info.rcMonitor.bottom);
primary = ((info.dwFlags & MONITORINFOF_PRIMARY) != 0);
deviceName = new string(info.szDevice);
deviceName = deviceName.TrimEnd((char)0);
if (hdc == IntPtr.Zero)
{
screenDC = UnsafeNativeMethods.CreateDC(deviceName);
measurementGraphics = WindowsGraphics.CreateMeasurementWindowsGraphics(screenDC);
}
}
hmonitor = monitor;
this.bitDepth = UnsafeNativeMethods.GetDeviceCaps(new HandleRef(null, screenDC), NativeMethods.BITSPIXEL);
this.bitDepth *= UnsafeNativeMethods.GetDeviceCaps(new HandleRef(null, screenDC), NativeMethods.PLANES);
if (hdc != screenDC)
{
UnsafeNativeMethods.DeleteDC(new HandleRef(null, screenDC));
}
}
