Hi Alex,
Thank you for using Microsoft Managed Newsgroup Service, I'm Zhi-Xin Ye,
it's my pleasure to work with you on this issue.
Using the keyword "userActivityHook" I find the sample you mentioned on
CodeProject.
In the HookManager.Callbacks.cs file, there's a method named
KeyboardHookProc:
private static int KeyboardHookProc(int nCode, Int32 wParam, IntPtr lParam)
{
......
if (s_KeyPress != null && wParam == WM_KEYDOWN)
{
//......
if (ToAscii(MyKeyboardHookStruct.VirtualKeyCode,
MyKeyboardHookStruct.ScanCode,
keyState,
inBuffer,
MyKeyboardHookStruct.Flags) == 1)
{
.....
s_KeyPress.Invoke(null, e);
}
}
If you set a breakpoint at the line which calls the ToAscii API and debug
the program, you'll find that when a function key is pressed, the return
value of the ToAscii API is not 1, so it does not run to the line "
s_KeyPress.Invoke(null, e); ", so the KeyPress event does not fire. You
can change the code to fire the KeyPress event as you needed, but it's not
recommended to do so, it make no sense to fire KeyPress event for
noncharacter keys. Instead, you can handle the KeyDown or KeyUp event for
the function keys(noncharacter keys).
If you have any question or concern, please feel free to let me know. I
will be happy of assistance.
Have a nice day!
Best Regards,
Zhi-Xin Ye
Microsoft Managed Newsgroup Support Team
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