Hello Everyone:
I need some assistance on a print code that I have:
I would like to when I click on the print button and it print my form to printed as "Lanscape" automatically. What am I missing:
Here is the code that I have.
' create a printing component
Private WithEvents pd As Printing.PrintDocument
' storage for form image
Dim formImage As Bitmap
' create API prototype
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
' Callback from PrintDocument component to
' do the actual printing
Private Sub pd_PrintPage(ByVal sender As Object, _
ByVal e As System.Drawing.Printing.PrintPageEventArgs) _
Handles pd.PrintPage
e.Graphics.DrawImage(formImage, 100, 100)
End Sub
Private Sub Form1_Load(ByVal sender As Object, _
ByVal e As System.EventArgs) Handles MyBase.Load
' create an instance of the PrintDocument component
pd = New Printing.PrintDocument
Me.StartPosition = FormStartPosition.CenterScreen
End Sub
Private Sub btnPrintForm_Click(ByVal sender As _
System.Object, ByVal e As System.EventArgs) _
Handles btnPrintForm.Click
' initiate the printdocument component
GetFormImage()
pd.Print()
End Sub
Private Sub GetFormImage()
Dim g As Graphics = Me.CreateGraphics()
Dim s As Size = Me.Size
formImage = New Bitmap(s.Width, s.Height, g)
Dim mg As Graphics = Graphics.FromImage(formImage)
Dim dc1 As IntPtr = g.GetHdc
Dim dc2 As IntPtr = mg.GetHdc
' added code to compute and capture the form
' title bar and borders
Dim widthDiff As Integer = _
(Me.Width - Me.ClientRectangle.Width)
Dim heightDiff As Integer = _
(Me.Height - Me.ClientRectangle.Height)
Dim borderSize As Integer = widthDiff \ 2
Dim heightTitleBar As Integer = heightDiff - borderSize
BitBlt(dc2, 0, 0, _
Me.ClientRectangle.Width + widthDiff, _
Me.ClientRectangle.Height + heightDiff, dc1, _
0 - borderSize, 0 - heightTitleBar, 13369376)
g.ReleaseHdc(dc1)
mg.ReleaseHdc(dc2)
End Sub