C++ Dll wont Send keys?

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C++

ok so im Trying to send Keys, in this case Mouse button, but when its injected ect it wont send? any help would be good, thanks.

//==============================//
//Project: Send Keys            //
//==============================//

// Define
#define IsKeyDown(Key) GetAsyncKeyState(Key) & 0x8000 //Used to check if a key is down.


// Include headers
#include <windows.h>
#include <iostream>
#include <tchar.h>
#pragma comment(lib,"User32.lib")

///////std
using namespace std;

// Global Vars //
DWORD dwGameExe = NULL;
bool bFire = false;
bool on1 = true;
//thread - key send and sh*t.. for checks
DWORD WINAPI dwMainThread(LPVOID)
{
	 //Check for the game
	for(;dwGameExe == NULL; Sleep(250)); // if exe is still null.. Sleep until game is found
	{
		dwGameExe = (DWORD)GetModuleHandle("notepad.exe");// Retrieves the module of "BFBC2Game.exe"
		//dwGameExe = (DWORD)GetModuleHandle("TESV.exe")
	}		
	// Do key checks etc.

//if (IsKeyDown(VK_LBUTTON))
if (IsKeyDown(VK_F2))
//if (IsKeyDown(MOUSEEVENTF_LEFTDOWN))
		on1 = !on1;

	if(on1 == true)
{
	
Sleep(100);


mouse_event(MOUSEEVENTF_LEFTDOWN, 0, 0, 0, 0);
Sleep(100);
mouse_event(MOUSEEVENTF_LEFTUP,0,0,0,0);
//Sleep(80);


Sleep(100);



mouse_event(MOUSEEVENTF_LEFTDOWN, 0, 0, 0, 0);
Sleep(100);
	mouse_event(MOUSEEVENTF_LEFTUP,0,0,0,0);
//Sleep(80);



//	mouse_event(MOUSEEVENTF_LEFTDOWN, 0, 0, 0, 0);
//	Sleep(10);
//	mouse_event(MOUSEEVENTF_LEFTUP,0,0,0,0);

return 1;

}



	if(GetAsyncKeyState(VK_UP)&1) // F1 Hot keey to enable.. then let it see if it fires.
		bFire = !bFire;

	if(bFire == true)
	{
		mouse_event(MOUSEEVENTF_LEFTDOWN, 0, 0, 0, 0);
		Sleep(2500);
		mouse_event(MOUSEEVENTF_LEFTUP,0,0,0,0);

MessageBox(NULL,"Project1.dll detached to Process!", "Successful Injection" ,NULL);

	}

	return 1;
}

BOOL WINAPI DllMain(HANDLE hModule, DWORD dwReason, LPVOID lpReserved)
{
    switch (dwReason)
    {
        case DLL_PROCESS_ATTACH:
            // Call thread
			CreateThread(0,0,dwMainThread,0,0,0);
			MessageBox(NULL,"Project1.dll detached to Process!", "Successful Injection" ,NULL);
            break;

        case DLL_PROCESS_DETACH:
            // Code to run when the DLL is freed
            break;
    }
    return TRUE;
}