Whats wrong here?

[tomcoombs]

Why is the image always black? Its not if a print it to the screen...

string strButton = "defaultt";

///new offscreen draw
Graphics offScreenDC;
Bitmap offScreenBmp = new Bitmap(this.ClientRectangle.Width, this.ClientRectangle.Height);
offScreenDC = Graphics.FromImage(offScreenBmp);
///new offscreen draw

///draw off screen stuff
offScreenDC.SmoothingMode = SmoothingMode.AntiAlias; //Make curves render better
Rectangle rect = new Rectangle(0, 0, this.ClientRectangle.Width, this.ClientRectangle.Height);
Brush brsh = new SolidBrush(Color.Gray);
offScreenDC.FillRectangle(brsh, rect);

Rectangle rect2 = new Rectangle(0, 0, this.ClientRectangle.Width, this.ClientRectangle.Height);
Pen pn = new Pen( Color.Black );
offScreenDC .DrawRectangle(pn, rect);
Font fnt = new Font("Verdana", 16);

offScreenDC.DrawString(strButton, fnt, new SolidBrush(Color.Black), 0,2);
///draw off screen stuff


Graphics clientDC = this.CreateGraphics();
clientDC.DrawImage(offScreenBmp, 0, 0);

Graphics g1 = offScreenDC;

Image MyImage = new Bitmap(this.ClientRectangle.Width, this.ClientRectangle.Height, g1);
Graphics g2 = Graphics.FromImage(MyImage);
IntPtr dc1 = g1.GetHdc();
IntPtr dc2 = g2.GetHdc();
BitBlt(dc2, 0, 0, this.ClientRectangle.Width, this.ClientRectangle.Height, dc1, 0, 0, 13369376);
g1.ReleaseHdc(dc1);
g2.ReleaseHdc(dc2);
MyImage.Save(@"c:\Captured.bmp", ImageFormat.Bmp);
MessageBox.Show("Finished Saving Image"

Tom

 

[sin1965]

try filling the offscreendc with white or something!
Steve