Is there a way to concat class names and other characters into a string with ## and # macros in c++

I'm developing qt application and we know that qt's SLOT and SIGNAL can convert input as char * which is needed by connect function. But my signals are coded as macros:

//NOTE following line is NOT RIGHT way, but just my idea
#define TEST_SIGNAL(name) #name##Changed##(##)

If I call this macro somewhere as:

// given defined integer variable
// int testInt;
TEST_SIGNAL(testInt)

which should generate following string:

"testIntChanged()"

So I can call that macro definition within connect:

// here we can focus on only second parameter of connect, eg. TEST_SIGNAL(testInt)
// given other parameters
connect(this, TEST_SIGNAL(testInt), this, SLOT(testIntHandle()));

Is it possible with macros # and ## in c++? If not, which is the better way?

Thanks.