README.TXT
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上传日期:2009-11-12
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- The RealModeInit sample shows a VxD with a real-mode initialization function.
- The sample also shows how to access registry services from a real-mode
- initializer, which isn't necessarily one of the things you'd really have to
- do in a typical device driver.
- To build this sample, prepare your system according to the general
- directions in the root directory of this disc. Run "nmake -f rmreg.mak" to
- build from a command prompt, or open the RealModeInit project in Microsoft
- Developer Studio and build within that environment.
- To actually execute this sample and see it do something:
- 1. Modify the sample to contain an INT 3 instruction at the beginning of
- the VxD_REAL_INIT_SEG segment.
- 2. Use REGEDIT to add the registry key
- HKLMSystemCurrentControlSetServicesVxDRMREG.
- Within that key, add two values:
- StaticVxD = [path]rmreg.vxd (a string value)
- Port = 1234 (a binary value)
- where [path] is the path to wherever you saved RMREG.VXD. Note that you'll need
- to put the VxD in a path other than ...RealModeInit, because Windows 95 can't
- handle the long file name in the registry entry. The VxD must also be on
- a drive that is visible in real mode before Windows startup (as opposed to
- a drive that has only protected-mode drivers).
- 3. Restart your system under control of the WDEB386 debugger. (Follow directions in
- the Windows 95 DDK about how to use this debugger.) You'll halt on the INT 3
- instruction in the real-mode initializer, whereupon you can trace the function
- calls that read out the Port value from the registry.