폼을 이미지로 캡쳐해 미리보기 화면으로 보내는 방법이다..
잘만 활용하면 다른 부분에서도 사용이 가능할듯.
[System.Runtime.InteropServices.DllImport("gdi32.dll")] public static extern long BitBlt (IntPtr hdcDest, int nXDest, int nYDest, int nWidth, int nHeight, IntPtr hdcSrc, int nXSrc, int nYSrc, int dwRop); private Bitmap memoryImage; private void CaptureScreen() { Graphics mygraphics = this.CreateGraphics(); Size s = this.Size; memoryImage = new Bitmap(s.Width, s.Height, mygraphics); Graphics memoryGraphics = Graphics.FromImage(memoryImage); IntPtr dc1 = mygraphics.GetHdc(); IntPtr dc2 = memoryGraphics.GetHdc(); BitBlt(dc2, 0, 0, this.ClientRectangle.Width, this.ClientRectangle.Height, dc1, 0, 0, 13369376); mygraphics.ReleaseHdc(dc1); memoryGraphics.ReleaseHdc(dc2); } private void printDocument1_PrintPage(System.Object sender, System.Drawing.Printing.PrintPageEventArgs e) { e.Graphics.DrawImage(memoryImage, 0, 0); } private void printButton_Click(System.Object sender, System.EventArgs e) { CaptureScreen(); printPreviewDialog1.Show(); }출처: MSDN 페이지
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