Thread: Win32 Api wParam key input problem

So, I've been playing around with WinApi in C++. When i tried some key input i got a problem. I'm using WPARAM along with the WM_CHAR case. This is my input function:

Code:

case WM_CHAR:
		 UpdateGameInput(wParam);
		 break;

//Later on

void UpdateGameInput(WPARAM wParam)
{
	if (wParam == VK_LEFT)
	{
		pPosition.x += -5;
	}
	else if (wParam == VK_UP)
	{
		pPosition.y += -5;
	}
	else if (wParam == VK_RIGHT)
	{
		pPosition.x += 5;
	}
	else if (wParam == VK_DOWN)
	{
		pPosition.y += 5;
	}
	else if (wParam == VK_ESCAPE)
	{
		exit(0x1337);
	}
}

The VK_ESCAPE is working perfectly but the other ones doesn't seem to give any effect. pPosition is a point and is declared global in the beginning of the program:

Code:

POINT pPosition;

I'm using pPosition to draw a rectangle with my HDC and PAINTSTRUCT. The rectangle is showing itself, but it isn't moving the way i want it to:

Code:

case WM_PAINT:
hdc = BeginPaint(hwnd, &ps);
                 Rectangle(hdc, 
			 pPosition.x - 10, pPosition.y - 10,
			 pPosition.x + 10, pPosition.y + 10);
		 EndPaint(hwnd, &ps);
		 break;

Please help me!