public static void CreateBackgroundImage(Dictionary <string, DesktopImage> images, Dictionary <string, Form> controlerForms)
{
var result = ScaledScreen.GetPerMonitorDPIAware();
if (result != ScaledScreen.PROCESS_DPI_AWARENESS.PROCESS_PER_MONITOR_DPI_AWARE)
{
ScaledScreen.SetPerMonitorDPIAware();
}
ScaledScreen[] scaledScreens = ScaledScreen.AllScaledScreens;
using (var virtualScreenBitmap = CreateScreenBitmap(scaledScreens))
{
using (var virtualScreenGraphic = Graphics.FromImage(virtualScreenBitmap))
{
foreach (var scaledScreen in scaledScreens)
{
if (!images.ContainsKey(scaledScreen.DeviceName))
{
break;
}
var desktopImage = images[scaledScreen.DeviceName];
//var monitorDimensions = scaledScreen.Bounds;
var monitorBitmap = new Bitmap(scaledScreen.UnscaledBounds.Width, scaledScreen.UnscaledBounds.Height);
var monitorGraphics = Graphics.FromImage(monitorBitmap);
// standard background
monitorGraphics.FillRectangle(SystemBrushes.Info, 0, 0, scaledScreen.UnscaledBounds.Width, scaledScreen.UnscaledBounds.Height);
// todo: extension add different centering zoom options: fill, fill center
if (desktopImage != null)
{
DrawImageFillCentered(ref monitorGraphics, desktopImage.Image, new Rectangle(0, 0, monitorBitmap.Width, monitorBitmap.Height));
}
// add text to image
Form controlerForm = null;
if (controlerForms.ContainsKey(scaledScreen.DeviceName))
{
controlerForm = controlerForms[scaledScreen.DeviceName];
}
DrawLegenda(monitorGraphics, scaledScreen, desktopImage, controlerForm);
// determine rectangle where the image will reside
Rectangle screenRectangle = new Rectangle(scaledScreen.UnscaledBounds.X - ScaledScreen.DesktopRectangle.X, scaledScreen.UnscaledBounds.Y - ScaledScreen.DesktopRectangle.Y, scaledScreen.UnscaledBounds.Width, scaledScreen.UnscaledBounds.Height);
// draw the image on the fill desktop image
virtualScreenGraphic.DrawImage(monitorBitmap, screenRectangle);
monitorGraphics.Dispose();
monitorBitmap.Dispose();
}
virtualScreenBitmap.Save(WallpaperPath + defaultBackgroundFileName, ImageFormat.Bmp);
virtualScreenGraphic.Dispose();
virtualScreenBitmap.Dispose();
}
}
SystemParametersInfo(SPI_SETDESKWALLPAPER, 0u, WallpaperPath + defaultBackgroundFileName, SPIF_UPDATEINIFILE);
}
public static void CreateTestBackgroundImage()
{
var result = ScaledScreen.GetPerMonitorDPIAware();
if (result != ScaledScreen.PROCESS_DPI_AWARENESS.PROCESS_PER_MONITOR_DPI_AWARE)
{
ScaledScreen.SetPerMonitorDPIAware();
}
ScaledScreen[] scaledScreens = ScaledScreen.AllScaledScreens;
//using (var virtualScreenBitmap = new Bitmap(ScaledScreen.DesktopRectangle.Width, ScaledScreen.DesktopRectangle.Height))
using (var virtualScreenBitmap = CreateScreenBitmap(scaledScreens))
{
using (var virtualScreenGraphic = Graphics.FromImage(virtualScreenBitmap))
{
// for each screen
foreach (var scaledScreen in scaledScreens)
{
// get drawing ground
var monitorBitmap = new Bitmap(scaledScreen.Width, scaledScreen.Height);
var monitorGraphics = Graphics.FromImage(monitorBitmap);
// standard background
monitorGraphics.FillRectangle(SystemBrushes.Desktop, 0, 0, monitorBitmap.Width, monitorBitmap.Height);
// draw background cross
Pen boundsCrossPen = new Pen(Color.Red, 4);
monitorGraphics.DrawLine(boundsCrossPen,
new Point(
0,
0),
new Point(
monitorBitmap.Width,
monitorBitmap.Height));
monitorGraphics.DrawLine(boundsCrossPen,
new Point(
monitorBitmap.Width,
0),
new Point(
0,
monitorBitmap.Height));
// draw workarea cross
Pen workareaCrossPen = new Pen(Color.Green, 4);
monitorGraphics.DrawLine(workareaCrossPen,
new Point(
scaledScreen.UnscaledWorkingArea.X,
scaledScreen.UnscaledWorkingArea.Y),
new Point(
scaledScreen.UnscaledWorkingArea.Width + scaledScreen.UnscaledWorkingArea.X,
scaledScreen.UnscaledWorkingArea.Height + scaledScreen.UnscaledWorkingArea.Y));
monitorGraphics.DrawLine(workareaCrossPen,
new Point(
scaledScreen.UnscaledWorkingArea.Width + scaledScreen.UnscaledWorkingArea.X,
scaledScreen.UnscaledWorkingArea.Y),
new Point(
scaledScreen.TaskbarLeftWidth,
scaledScreen.UnscaledWorkingArea.Height + scaledScreen.UnscaledWorkingArea.Y));
// https://code.msdn.microsoft.com/DPI-Tutorial-sample-64134744/sourcecode?fileId=86763&pathId=1297537410
Font font = new Font(FontFamily.GenericSansSerif, (int)((float)10 * scaledScreen.Scale));
monitorGraphics.DrawString(scaledScreen.DeviceName, font, Brushes.LightBlue,
new PointF(scaledScreen.TaskbarLeftWidth + 10 * scaledScreen.Scale,
scaledScreen.TaskbarTopHeight + 10 * scaledScreen.Scale));
monitorGraphics.DrawString(scaledScreen.DeviceName, font, Brushes.LightGreen,
new PointF(scaledScreen.TaskbarLeftWidth + scaledScreen.UnscaledWorkingArea.Width - 200 * scaledScreen.Scale,
scaledScreen.TaskbarTopHeight + scaledScreen.UnscaledWorkingArea.Height - 50 * scaledScreen.Scale));
DrawTestLegenda(monitorGraphics, scaledScreen);
Rectangle rectangle = new Rectangle(scaledScreen.UnscaledBounds.X - ScaledScreen.DesktopRectangle.X, scaledScreen.UnscaledBounds.Y - ScaledScreen.DesktopRectangle.Y, scaledScreen.UnscaledBounds.Width, scaledScreen.UnscaledBounds.Height);
virtualScreenGraphic.DrawImage(monitorBitmap, rectangle);
}
virtualScreenBitmap.Save(WallpaperPath + defaultBackgroundFileName, ImageFormat.Bmp);
}
}
SystemParametersInfo(SPI_SETDESKWALLPAPER, 0u, WallpaperPath + defaultBackgroundFileName, SPIF_UPDATEINIFILE);
}
public static void CreateLogonScreenImage(DesktopImage desktopImage, string fullfilename)
{
var result = ScaledScreen.GetPerMonitorDPIAware();
if (result != ScaledScreen.PROCESS_DPI_AWARENESS.PROCESS_PER_MONITOR_DPI_AWARE)
{
ScaledScreen.SetPerMonitorDPIAware();
}
ScaledScreen[] scaledScreens = ScaledScreen.AllScaledScreens;
ScaledScreen scaledScreen = scaledScreens[0];
using (var virtualScreenBitmap = new Bitmap(ScaledScreen.DesktopRectangle.Width, ScaledScreen.DesktopRectangle.Height))
{
using (var virtualScreenGraphic = Graphics.FromImage(virtualScreenBitmap))
{
var monitorBitmap = new Bitmap(scaledScreen.UnscaledBounds.Width, scaledScreen.UnscaledBounds.Height);
var monitorGraphics = Graphics.FromImage(monitorBitmap);
// standard background
monitorGraphics.FillRectangle(SystemBrushes.Info, 0, 0, scaledScreen.UnscaledBounds.Width, scaledScreen.UnscaledBounds.Height);
// todo: extension add different centering zoom options: fill, fill center
if (desktopImage != null)
{
DrawImageFillCentered(ref monitorGraphics, desktopImage.Image, new Rectangle(0, 0, monitorBitmap.Width, monitorBitmap.Height));
}
// add text to image
DrawLegenda(monitorGraphics, scaledScreen, desktopImage, null);
// determine rectangle where the image will reside
Rectangle screenRectangle = new Rectangle(scaledScreen.UnscaledBounds.X - ScaledScreen.DesktopRectangle.X, scaledScreen.UnscaledBounds.Y - ScaledScreen.DesktopRectangle.Y, scaledScreen.UnscaledBounds.Width, scaledScreen.UnscaledBounds.Height);
// draw the image on the fill desktop image
virtualScreenGraphic.DrawImage(monitorBitmap, screenRectangle);
monitorGraphics.Dispose();
monitorBitmap.Dispose();
virtualScreenBitmap.Save(fullfilename, ImageFormat.Png);
virtualScreenGraphic.Dispose();
virtualScreenBitmap.Dispose();
// https://docs.microsoft.com/en-us/uwp/api/Windows.System.UserProfile.LockScreen?view=winrt-18362
// https://github.com/Microsoft/Windows-universal-samples/tree/master/Samples/Personalization
// Microsoft.Win32.SessionSwitchReason.SessionLock // http://omegacoder.com/?p=516
// registry: Computer\HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Lock Screen
// https://winaero.com/blog/find-the-current-lock-screen-image-file-in-windows-10/
// https://winaero.com/blog/find-the-current-lock-screen-image-file-in-windows-10/
//await LockScreen.SetImageFileAsync(imageFile);
//System.UserProfile.LockScreen.SetImageFileAsync(File);
}
}
//SystemParametersInfo(SPI_SETDESKWALLPAPER, 0u, WallpaperPath + defaultBackgroundFileName, SPIF_UPDATEINIFILE);
}
