PRB: PrintForm Blank Page or GPF Due to Video Color Depth >256 (108470)
The information in this article applies to:
- Microsoft Visual Basic Standard Edition for Windows 3.0
- Microsoft Visual Basic Professional Edition for Windows 3.0
This article was previously published under Q108470 SYMPTOMS
The PrintForm method in Visual Basic is designed to send a bit-for-bit
image of a non-MDI form to the printer.
Using the PrintForm method to print a form to a Hewlett-Packard (HP)
LaserJet Series II can give a general protection (GP) fault from
Windows due to the cause described below. An HP LaserJet Series IV can
print a blank page due to the cause described below. Similar behavior
may occur with other printers.
The problem can occur even on a simple form, such as a form with a
PrintForm method in the click event of a single command button.
CAUSE
This memory problem can be caused by using a video driver with a color
depth setting greater than 256 colors, or greater than 8 bits per pixel.
For example, a color depth setting of 65,000 colors, or 16 bits per
pixel, can cause this memory management problem. A color depth setting
of 24 bits per pixel for the video driver can also cause this memory
problem.
WORKAROUND
To eliminate the GP fault or blank page problem, reset the color depth
of the video driver on your system to 256 colors or less, or 8 bits per
pixel or less.
STATUS
This behavior is caused by memory management limitations between the
video driver and Windows.
| Modification Type: | Major | Last Reviewed: | 10/29/2003 |
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| Keywords: | kbprb KB108470 |
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