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Click to See Complete Forum and Search --> : picture box black when asked to print


danix
Jan 21st, 2000, 07:05 PM
The following code is used to print the chart, but it just prints black box?????


Private Declare Function BitBlt Lib "gdi32" (ByVal hDestDC As Long, ByVal x As Long, ByVal y As Long, ByVal nWidth As Long, ByVal nHeight As Long, ByVal hSrcDC As Long, ByVal xSrc As Long, ByVal ySrc As Long, ByVal dwRop As Long) As Long
Private Declare Function GetDC Lib "user32" (ByVal hwnd As Long) As Long
Private Declare Function ReleaseDC Lib "user32" (ByVal hwnd As Long, ByVal hdc As Long) As Long
Private Const SRCCOPY = &HCC0020
Private Sub Command1_Click()
Dim lDC As Long
Dim W As Integer
Dim H As Integer
W = ScaleX(MSChart1.Width, vbTwips, vbPixels)
H = ScaleY(MSChart1.Height, vbTwips, vbPixels)
lDC = GetDC(MSChart1.hwnd)
Picture1.AutoRedraw = True
Picture1.Move 0, 0, MSChart1.Width, MSChart1.Height
BitBlt Picture1.hdc, 0, 0, W, H, lDC, 0, 0, SRCCOPY
Call ReleaseDC(MSChart1.hwnd, lDC)
Picture1 = Picture1.Image
Printer.PaintPicture Picture1, 0, 0
Printer.EndDoc
End Sub
Thanks

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JeffSM
Jan 22nd, 2000, 01:41 AM
Hi, your code works fine, the only thing taht I do where set AutoRedraw in desing mode and changed this line:

Picture1.Move Picture1.Left, Picture1.Top, MSChart1.Width, MSChart1.Height

'cause I wanted see the picture.

The problem could be your printer.

Why don't you use Graph32.ocx that cames with VB4 and works fine with VB5. If you wish I send you the needed files. this Graph32.ocx has his own method to print, and is what I'm using.

Jefferson

danix
Jan 22nd, 2000, 01:55 AM
Jefferson could u please send the ocx files, thanks mate

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JeffSM
Jan 22nd, 2000, 05:07 AM
OK!