Thread: somethings wrong

can anybody find an error in this code

Code:

//---------------------------------------------------------------------------
LRESULT CALLBACK WndProc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
{
    HDC hDC;
    PAINTSTRUCT Ps;

    POINT Pt[15];
	DWORD  lpPts[] = { 4, 4, 7 };

	// Left Triangle
	Pt[0].x = 50;
	Pt[0].y = 20;
	Pt[1].x = 20;
	Pt[1].y = 60;
	Pt[2].x = 80;
	Pt[2].y = 60;
	Pt[3].x = 50;
	Pt[3].y = 20;
	
	// Second Triangle
	Pt[4].x =  70;
	Pt[4].y =  20;
	Pt[5].x = 100;
	Pt[5].y =  60;
	Pt[6].x = 130;
	Pt[6].y =  20;
	Pt[7].x =  70;
	Pt[7].y =  20;

	// Hexagon
	Pt[8].x  = 145;
	Pt[8].y  =  20;
	Pt[9].x  = 130;
	Pt[9].y  =  40;
	Pt[10].x = 145;
	Pt[10].y =  60;
	Pt[11].x = 165;
	Pt[11].y =  60;
	Pt[12].x = 180;
	Pt[12].y =  40;
	Pt[13].x = 165;
	Pt[13].y =  20;
	Pt[14].x = 145;
	Pt[14].y =  20;

    switch(Msg)
    {
    case WM_PAINT:
        hDC = BeginPaint(hWnd, &Ps);
        PolyPolyline(hDC, Pt, lpPts, 3);
        EndPaint(hWnd, &Ps);
        break;
    case WM_DESTROY:
        PostQuitMessage(WM_QUIT);
        break;
    default:
        return DefWindowProc(hWnd, Msg, wParam, lParam);
    }
    return 0;
}
//---------------------------------------------------------------------------

i use dev c++ and when i run my program with this part, it says

"[Linker error] undefined reference to `_Z15WindowProcedureP6HWND__jjl@16' "
" C:\Dev-Cpp\Makefile.win
[Build Error] [Project1.exe] Error 1"

Apparently, the linker can't find WindowProcedure. Try renaming WndProc to WindowProcedure.