Re: How a non-windowed program can receive WM_DEVICECHANGE from Wi

Tech-Archive recommends: Fix windows errors by optimizing your registry

hInstance is an instance handle of the main exe or DLL which contains the
WNDPROC. When that DLL is unloaded, all classes registered for its HINSTANCE
are automatically unregistered.

"Amanda Lin" <AmandaLin@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:ADAE70C5-DB74-4604-B71E-F3CDB0F8678F@xxxxxxxxxxxxxxxx
Thank you very much.

I have a question about the "hInstance" that RegisterClass() needs to
create
my own window class.

typedef struct _WNDCLASS {
...
HINSTANCE hInstance;
...
} WNDCLASS, *PWNDCLASS;

MSDN says it's "Handle to the instance that contains the window procedure
for the class". Is it the handle of the application or the thread I
created ?





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