Hi,
For a mirror display driver I have created one buffer (shared file using EngMapFile) which will be shared between app and driver. Some time it is able to create but some time it is not.
I have investigated and found when some problem happened at the app level and because of that driver is not unloaded properly. After that this problem gets started and some times it will not go even after re-installation of driver.
I am using ChangeDisplaySettingsEx() to initialize the driver.
Doubts:
1. Is there any way to get the reason of failing EngMapFile()?
2. I have tried with different file name when one is failing but did not get success.
3. Please let me know if there is any way other than EngMapFile() to create shared memory.
Any advice/suggestion will help a lot here.
/sarbojit
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