In MFC RegisterHotKey function don't respond - winapi

Question

In MFC RegisterHotKey function don't respond from Dll but works fine if i put same code in exe.
i am using same code which works in exe and putting it in Dll.
Also making sure that Dll gets load and othere changes are reflecting when i run exe.

Answer 1

You are using the same code for registering a hotkey in your DLL as in your EXE. This is your problem. See documentation for RegisterHotKey:
An application must specify an id value in the range 0x0000 through 0xBFFF. A shared DLL must specify a value in the range 0xC000 through 0xFFFF (the range returned by the GlobalAddAtom function). To avoid conflicts with hot-key identifiers defined by other shared DLLs, a DLL should use the GlobalAddAtom function to obtain the hot-key identifier.
To use RegisterHotKey from a shared DLL, you need to generate an id value. To get a value in the correct range, call GlobalAddAtom with a string parameter (see About Atom Tables: String Atoms). To create a unique id, pass the string representation of a GUID.

Answer 2

// Putting in message map
ON_MESSAGE(WM_HOTKEY, OnHotKey)
//Demographic Bar HotKey (putting in create or init)
RegisterHotKey(GetSafeHwnd(), GlobalAddAtom("SHIFT+CTRL+ALT+D"), MOD_SHIFT | MOD_CONTROL | MOD_ALT, 'D');
//source file
LRESULT CMainFrame::OnHotKey(WPARAM wParam, LPARAM lParam)
{
int hotKeyId = (int)wParam;
CString atomName;
GlobalGetAtomName(hotKeyId, atomName.GetBuffer(20), 20);
atomName.ReleaseBuffer();
if (atomName.Compare("SHIFT+CTRL+ALT+D") == 0)
{
SetPaneFocused(1); //Hard-coding 1 & 2 as place holders. Actual pane id should be here
}
else if (atomName.Compare("SHIFT+CTRL+ALT+M") == 0)
{
SetPaneFocused(2);
}
return S_OK;
}