Microsoft KB Archive/137882

{|
 * width="100%"|

BUG: 32-Bit .Fon File Causes GP Fault with Standard VGA Driver

 * }

Q137882

-

The information in this article applies to:


 * Microsoft Win32 Software Development Kit (SDK)

-

SYMPTOMS
Windows NT and Windows 95 can use 32-bit .fon files in the PE format. These raster font files can be created when using the 32-bit compiler or linker if you create a 32-bit DLL that contains one or more .fnt files in its resources. However, If you run Windows 95 with the "Standard Display Adapter (VGA)(Microsoft)," your application will shut down (perform an illegal operation or produce a general protection (GP) fault) if you try to call TextOut with a 32-bit .fon raster font selected into the device context you are calling TextOut on.

RESOLUTION
Create a 16-bit .fon file instead of a 32-bit .fon file if you want your font to function properly on all video drivers.

STATUS
Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article.

Steps to Reproduce Problem

 * 1) Create a 32-bit .fon raster font file by using the 32-bit compiler.
 * 2) Call CreateFont to create a logical font for it, and select it into a device context.
 * 3) Try calling TextOut to draw some text. A GP fault occurs.