Form background image flicker C# .Net

Question

Programming language: Visual C# .Net

Hello!
My program have a form with a listbox, combobox, progressbar, groupbox and labels.
I want to have a background image (jpg) over the entire form.
The other controls have been set to Transparent BackColor.

BackgroundImage property isn't so good solution I think.
My program flicker if I open it or if another program is over and I set focus on my program.
Both the picture and all the other controls on the form flicker.

Can someone give me a better or perfect solution what I can do?
Should I use GDI or directx, how to do that?

Thanks!

mr.stork · Answer

I also have such kinda problem. I coded a tetris game by using gdi. But it has flickering. I tried to add initiliaze() method. But nothing changed. How could I achive double buffering?

Sondre Garmo · Answer

Thanks for help! Here is how I do it. //================================================= Bitmap Background BackgroundTemp; public Form() { // // Required for Windows Form Designer support // InitializeComponent(); initialize(); } protected override void Dispose( bool disposing ) { if ( disposing ) { if (components != null ) { components.Dispose(); } } base .Dispose( disposing ); BackgroundTemp.Dispose(); Background.Dispose(); } private void initialize() { SetStyle(ControlStyles.UserPaint true ); SetStyle(ControlStyles.AllPaintingInWmPaint true ); SetStyle(ControlStyles.DoubleBuffer true ); string AppPath = Application.StartupPath; BackgroundTemp = new Bitmap(@AppPath + \Backgroundimages\Main.jpg); Background = new Bitmap(BackgroundTemp BackgroundTemp.Width BackgroundTemp.Height); } protected override void OnPaint(PaintEventArgs e) { Graphics dc = e.Graphics; dc.DrawImageUnscaled(Background00); base .OnPaint(e); } //==============================================

Mike Gold · Answer

use double buffering Add this to your form constructor after initialization SetStyle(ControlStyles.UserPaint true); SetStyle(ControlStyles.AllPaintingInWmPaint true); SetStyle(ControlStyles.DoubleBuffer true); -Mike G.