/// <summary>
/// Sets the current wallpaper with the image at it's designated path. Can cause issues/black wallpaper if path incorrect/not set.
/// </summary>
public void SetImage()
{
Natives.SystemParametersInfo((uint)Natives.SPIWALL.SET, 0, GetCurrentWallpaperPath(), Natives.SPIF.SPIF_UPDATEINIFILE | Natives.SPIF.SPIF_SENDCHANGE);
}
private void button1_Click(object sender, EventArgs e)
{
var workerw = GetHandle();
string gifPath = "";
//Select a gif file to be placed in the picture box.
using (OpenFileDialog openFileDialog = new OpenFileDialog
{
Filter = "Gif files (*.gif)|*.gif",
Title = "Open gif file",
AutoUpgradeEnabled = false
})
{
if (openFileDialog.ShowDialog() != DialogResult.OK)
{
return;
}
try
{
//Set variables to match the data returned by the selected image
gifPath = openFileDialog.FileName;
//Set the value in the picturebox as a preview of the selected image
pictureBox1.ImageLocation = gifPath;
pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
return;
}
}
// Create a new background form
var form = new BackgroundForm();
//Fetch the selected monitor
int monitorId = int.Parse(numericUpDown1.Value.ToString());
//Attempt to remove previously allocated items from that monitor
if (Forms.TryGetValue(monitorId, out var currentForm))
{
currentForm.Form.Close();
Forms.Remove(monitorId);
}
Forms.Add(monitorId, form);
// Set the background forum to be borderless
form.Form.FormBorderStyle = FormBorderStyle.None;
form.Form.Text = "PassiveWallpaper";
Screen selectedScreen = Screen.AllScreens[monitorId];
//On the loading of the background form set the new properties
form.Form.Load += (s, e2) =>
{
//Ensure the form takes up the entire screen size of the selected monitor
form.Form.Width = selectedScreen.Bounds.Width;
form.Form.Height = selectedScreen.Bounds.Height;
form.Form.Left = selectedScreen.Bounds.X;
form.Form.Top = selectedScreen.Bounds.Y;
//Create a new picturebox that fills the form and set it's image contents
PictureBox pic = new PictureBox
{
Width = form.Form.Width,
Height = form.Form.Height,
Left = 0,
Top = 0,
Name = "PictureBox",
ImageLocation = gifPath,
SizeMode = PictureBoxSizeMode.StretchImage
};
if (transparent.Checked)
{
//Set the image to be transparent backgrounded and set it's background image to be the current desktop background.
pic.BackColor = Color.Transparent;
pic.BackgroundImage = new Bitmap(GetCurrentWallpaperPath());
}
else
{
pic.BackColor = Color.White;
pic.BackgroundImage = null;
}
//Add the picturebox to the form
form.Form.Controls.Add(pic);
//Ensure the parent of the new form is the WorkerW process that was spawned between the desktop wallpaper and icons
Natives.SetParent(form.Form.Handle, workerw);
};
//Ensure that the closing event of the form is set in order to re-set the current desktop wallpaper and 'refresh' it, removing any artifacts
form.Form.Closing += (s2, a2) => SetImage();
//Finally display the new form to the user.
form.Form.Show();
}