Splash Screen Shows Black before Showing

[Sukhjinder_K]

I'm drawing a Splash Screen (Custom Shaped WinForm) as follows

class SplashScreen : Form
	{
		Image splashImage;
		public SplashScreen()
		{
			this.TopMost = true;
			this.ShowInTaskbar = false;
			this.FormBorderStyle = FormBorderStyle.None;
			this.StartPosition = FormStartPosition.CenterScreen;

			this.BackColor = this.TransparencyKey = Color.White;
			this.BackgroundImage = splashImage = Bitmap.FromFile(SplashFileName);
			this.Size = this.BackgroundImage.Size;			
		}
		protected override void OnPaint(PaintEventArgs e)
		{
			base.OnPaint(e);
			e.Graphics.DrawImage(this.splashImage, 0, 0, this.Width, this.Height);
		}
	}

and showing it in my Main method as

class MainForm : Form
{
	public static void Main(String[] args)
	{
		//Do something here
		
		SplashScreen splash = new SplashScreen();
		splash.Show();
		
		MainForm mainForm = new MainForm();
		mainForm.Shown += delegate(object o, EventArgs ev)
		{
			splash.Hide();		//Hide and Dispose the Splash Form When mainForm is shown for the first Time
			splash.Dispose();
			mainForm.Activate();
			mainForm.Focus();
		};
		//Do something more here
		mainForm.Show();
		Application.Run(mainForm);
        }
}

Now the Issue is that the Splash Screen shows fine as per the Image from "SplashFileName" but just before showing it shows a Black Rectangle for some milliseconds. What I expect is that the Splash Screen be shown while my program is loading stuff and hide as soon as the MainForm gets Shown. So Where am I missing? Please Advice Thanks...

[Luc Pattyn]

Hi, as the splash image seems intended to fill the splash form, I see no reason to call base.OnPaint() so I suggest you take it out. :)

Luc Pattyn [Forum Guidelines] [My Articles]

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[Sukhjinder_K]

protected override void OnPaint(PaintEventArgs e) { base.OnPaint(e); e.Graphics.DrawImage(this.splashImage, 0, 0, this.Width, this.Height); } I tried removing base.OnPaint(e) from above and removed the above method completly but still a get a Black Rectangle of the same Dimensions as my Splash Screen before I the latter becomes visible

[Luc Pattyn]

Hi, I did some experiments, and it clearly is this.TransparencyKey = Color.White; that causes the initially black window. If you remove it, everything looks fine; if you need transparency, there might not be a solution (except maybe switching to WPF). :)

Luc Pattyn [Forum Guidelines] [My Articles]

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Sorry for any delays in replying, I currently don't always get e-mail notifications.

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[Sukhjinder_K]

Thanks for the reply. Yes taking out this.TransparencyKey = Color.White; does get rid of the Black Rectangle but my Image is not Rectangular. I know that we can draw Non-Rectangular WinForms using this.BackColor = this.TransparencyKey = SomeColor; //Color.White in my case In case you want to investigate further then my SplashForm Image is located at SplashScreen Image[^]