高分求窗体打印源码

[ivanshang]

小弟初学vb.net
要做一个打印窗体的程序
把一些控件放到一个窗体form2里面，在别的窗体form1里面用printdocument打印出来，form2不显示出来。如果这样不能实现，直接打印当前窗体也可以，最好是打印窗体的一部分。
我看了别人提的问题，知道要把窗体画成图形打印，可是有些地方没有看懂。不知道在那个地方绘的窗体，也不知道绘的范围是多少。

[jxzhang615]

帮顶！

[jialiang]

帮顶！

[3tzjq]

用API:
Private Declare Function BitBlt Lib "gdi32.dll" Alias "BitBlt" (ByVal _
hdcDest As IntPtr, ByVal nXDest As Integer, ByVal nYDest As _
Integer, ByVal nWidth As Integer, ByVal nHeight As Integer, ByVal _
hdcSrc As IntPtr, ByVal nXSrc As Integer, ByVal nYSrc As Integer, _
ByVal dwRop As System.Int32) As Long
Dim memoryImage As Bitmap
Private Sub CaptureScreen()
Dim mygraphics As Graphics = Me.CreateGraphics()
Dim s As Size = Me.Size
memoryImage = New Bitmap(s.Width, s.Height, mygraphics)
Dim memoryGraphics As Graphics = Graphics.FromImage(memoryImage)
Dim dc1 As IntPtr = mygraphics.GetHdc
Dim dc2 As IntPtr = memoryGraphics.GetHdc
BitBlt(dc2, 0, 0, Me.ClientRectangle.Width, _
Me.ClientRectangle.Height, dc1, 0, 0, 13369376)
mygraphics.ReleaseHdc(dc1)
memoryGraphics.ReleaseHdc(dc2)
End Sub
Private Sub PrintDocument1_PrintPage(ByVal sender As System.Object, _
ByVal e As System.Drawing.Printing.PrintPageEventArgs) Handles _
PrintDocument1.PrintPage
e.Graphics.DrawImage(memoryImage, 0, 0)
End Sub
Private Sub PrintButton_Click(ByVal sender As System.Object, ByVal e As _
System.EventArgs) Handles PrintButton.Click
CaptureScreen()
PrintDocument1.Print()
End Sub

[wangjian]

www.shsofts.com
有你要的源吗.能打印常见的窗口控件内容

[ballnan]

Imports System.Drawing.Printing

' Specifies what happens when the PrintPage event is raised.
Private Sub pd_PrintPage(ByVal sender As Object, ByVal ev As PrintPageEventArgs)
Dim obj As Bitmap
Dim iData As IDataObject = Clipboard.GetDataObject()
' Determines whether the data is in a format you can use.
If iData.GetDataPresent(DataFormats.Bitmap) Then
obj = iData.GetData(DataFormats.Bitmap)
ev.Graphics.DrawImage(obj, _
obj.GetBounds(System.Drawing.GraphicsUnit.Pixel)) 'ev.Graphics.VisibleClipBounds)
End If
ev.HasMorePages = False
End Sub

Private Sub Button1_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Try
'Printscreen
SendKeys.SendWait("%{PRTSC}")
' Assumes the default printer.
Dim pd As New PrintDocument()
AddHandler pd.PrintPage, AddressOf Me.pd_PrintPage
pd.DefaultPageSettings.Landscape = True
pd.Print()
Catch ex As Exception
MessageBox.Show("An error occurred while printing" & vbCrLf & _
ex.ToString(), "Error")
End Try
End Sub
End Class