help please on wheelmouse

From microsoft:
wParam
The high-order word indicates the distance the wheel is rotated, expressed in multiples or divisions of WHEEL_DELTA, which is 120. A positive value indicates that the wheel was rotated forward, away from the user; a negative value indicates that the wheel was rotated backward, toward the user.

zDelta = GET_WHEEL_DELTA_WPARAM(wParam);

Use MSDN. I don''t see how someone can program for Win32 without it.

error C2065: ''GET_WHEEL_DELTA_WPARAM'' : undeclared identifier

so how would i do it or what do i need to include besides zmouse.h?

As others have pointed out, MSDN is your friend.

try HIWORD(wparam).

i used it and i still get the same error.
thats why i am asking you guys for help.

so how would i do it.

or give me an example.

by the way i used the msdn and it did not help for what i need.

short GET_WHEEL_DELTA_WPARAM(
WPARAM wParam
);

Parameters:

wParam ''Specifies the value to be converted.

Return Value:

The return value is the high-order word representing the wheel-delta value. It indicates the distance that the wheel is rotated, expressed in multiples or divisions of WHEEL_DELTA, which is 120. A positive value indicates that the wheel was rotated forward, away from the user; a negative value indicates that the wheel was rotated backward, toward the user.

Header: Declared in Winuser.h, include Windows.h

hello????
i already read that and it did not work.

why did it not work?

i dont know.

what i have is.

and i have #include <windows.h> and zmouse.h

case WM_MOUSEWHEEL:
{
  int zDelta = GET_WHEEL_DELTA_WPARAM(wParam);

   if(weap == 1)
   {
	weap = 0;
	break;
   }
   if(weap == 0)
   {
	weap = 1;
	break;
   }
}
break;
 

[edited by - 31337noob on April 23, 2004 3:19:20 PM]

and it does not work it says
error C2065: ''GET_WHEEL_DELTA_WPARAM'' : undeclared identifier

Have you actually got the wparam variable parsed/initialised in that function? list the complete function in a source block please.

You didn''t #define WIN32_LEAN_AND_MEAN by chance? As mentioned, you can also just use HIWORD(wParam) (also mentioned on the same MSDN page as WM_MOUSEWHEEL wink wink).

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	switch (message) 
	{
		case WM_DESTROY:
			mouse.killgui();
			g[0].killgui();
			g[1].killgui();
			g[2].killgui();
			g[3].killgui();
			g[4].killgui();
			g2[0].killgui();
			g2[1].killgui();
			g2[2].killgui();
			g2[3].killgui();
			g2[4].killgui();
		    g3[0].killgui();
			g3[1].killgui();
			g3[2].killgui();
			g3[3].killgui();
			g3[4].killgui();
			g4[0].killgui();
			g4[1].killgui();
			g4[2].killgui();
			g4[3].killgui();
			g4[4].killgui();
			b[0].killgui();
			b[1].killgui();
			b[2].killgui();
			b[3].killgui();
			b[4].killgui();
			b2[0].killgui();
			b2[1].killgui();
			b2[2].killgui();
			b2[3].killgui();
			b2[4].killgui();
		    b3[0].killgui();
			b3[1].killgui();
			b3[2].killgui();
			b3[3].killgui();
			b3[4].killgui();
			b4[0].killgui();
			b4[1].killgui();
			b4[2].killgui();
			b4[3].killgui();
			b4[4].killgui();
			m[0].killgui();
		    m[1].killgui();
		    m[2].killgui();
		    m[3].killgui();
			bullet.killgui();
			bullet2.killgui();
			//background.killgui();


			if(myhealth <= 0)
			{
				MessageBox(0,"you died","end",0);
			}

			expl[0].killgui();
			expl[1].killgui();
			expl[2].killgui();

			PostQuitMessage(0);
			break;

		case WM_MOUSEWHEEL:
			{
				int zDelta = GET_WHEEL_DELTA_WPARAM(wParam);

				if(weap == 1)
				{
					weap = 0;
					break;
				}
				if(weap == 0)
				{
					weap = 1;
					break;
				}
			}
			break;
		default:
			return DefWindowProc(hWnd, message, wParam, lParam);
   }
   return 0;
}

error C2065:
Omitting necessary include files, especially if you define VC_EXTRALEAN, WIN32_LEAN_AND_MEAN, or WIN32_EXTRA_LEAN. These symbols exclude some header files from windows.h and afxv_w32.h to speed compiles. (Look in windows.h and afxv_w32.h for an up-to-date description of what''s excluded.)

i tryed #define WIN32_LEAN_AND_MEAN
and it still didnt work.

it still says
error C2065: ''GET_WHEEL_DELTA_WPARAM'' : undeclared identifier

Dude, if the hiword macro doesn''t work then you got some issues with your program, check your windows.h, and winuser.h files for the macro/functions, check what #ifdef blocks they are in etc.
Also check your build env and make sure you don''t have mean and lean defined etc.