Re: C2275: illegal use of this type as an expression? It's a DWORD?

Wed, 06 Jun 2007 01:14:01 -0000
On Jun 5, 9:02 pm, wrote:

I'm trying out some of the sample code on Raymond Chen's blog:

Unfortunately I can't get the following snippet of code to compile:

void OnPaint(HWND hwnd)
    BeginPaint(hwnd, &ps);
    if (!IsRectEmpty(&ps.rcPaint))
        // compute time to next update - we update once a second
        SYSTEMTIME st;

        DWORD dwTimeToNextTick = 1000 - st.wMilliseconds;
        SetTimer(hwnd, 1, dwTimeToNextTick,
    EndPaint(hwnd, &ps);


Here is the compiler output:
error C2275: 'DWORD' : illegal use of this type as an expression see
declaration of 'DWORD'
error C2146: syntax error : missing ';' before identifier
error C2065: 'dwTimeToNextTick' : undeclared identifier

I'm using the Win32 project template in VS 2005.

Any ideas?


I should also add that used the 'Empty Project' option..I kind want to
keep the sample as light as possible.

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