Background image resize

[madcrow74]

I've assigned a background image to a MDI form.
When i resize the form, the image retain the same size, but I want it to resize with the form.

i've tried in the Resize event this code:




Graphic g = this.CreateGraphic();
g.DrawImage(img, this.ClientRectangle);


but it doesn't works...

How can I do?

[tomcat101]

Hi!

i've found this in the MSDN a few days ago, maybe it helps:

e.Graphics.DrawImageUnscaled(yourImage, x,y,width, heigth);


the example code looks good but i've not tried this



blue skies

[newvisva]

IF u don't want to code then do the following:

1. Place a picbox on ur MDI randomly (no need to resize it)
2. Picbox property select image NOT background image!
3. Picbox property set the sizemode="StretchImage"
4. Picbox property set dock to the middle box (DockStyle.Fill)

5. Ctrl-F5

Done.

[madcrow74]

I've tried this:

private void Form1_Resize(object sender, System.EventArgs e)
{
this.CreateGraphics().DrawImageUnscaled(sfondo,this.ClientRectangle);
}


but it doesn't work...

The other method, with picturebox, hide every MDIchild form that i have to load after the main form...even if i SendBack the picturebox...

[tomcat101]

Hi,

okay, here's an example with only one problem, it flickers when it's resizing:

add to methods with the property page of your Windows-Form:
"Paint" and "SizeChanged"

private Image myImg;
private Rectangle myRec;

public Form1(){myImg = Image.FromFile("c:\\Blaue Berge.jpg");}

private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e) {
myRec = new Rectangle(0,0,this.Right,this.Bottom);
e.Graphics.DrawImage(myImg, myRec);
}

private void Form1_SizeChanged(object sender, System.EventArgs e)
{ this.Refresh(); }


with this code the image is sized to the borders of the Window-Form, but i guess you'll need a solution to avoid the flickering ( if you have one let me know it )

hope it helps

blue skies

rg

[tomcat101]

yo man,

i've found a solution for the flickering ( thank god for google.com ):

add this to the initialize() of your view:

this.SetStyle(ControlStyles.DoubleBuffer, true);
this.SetStyle(ControlStyles.AllPaintingInWmPaint , true);
this.SetStyle(ControlStyles.UserPaint, true);


it works really nice, i was really surprised!

think i've to change my mind about microsoft ;-)

blue skies