November 1998
Intermediate to advanced
1520 pages
37h 53m
English
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Using the Timer for a Clock
A clock is the most obvious application for the timer, so let’s look at two of them, one digital and one analog.
Building a Digital Clock
The DIGCLOCK program, shown in Example 8-3, displays the current time using a simulated LED-like 7-segment display.
Example 8-3. The DIGCLOCK program.
DIGCLOCK.C /*----------------------------------------- DIGCLOCK.C -- Digital Clock (c) Charles Petzold, 1998 -----------------------------------------*/ #include <windows.h> #define ID_TIMER 1 LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ; int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow) { static TCHAR szAppName[] = TEXT ("DigClock") ; HWND hwnd ; MSG msg ; WNDCLASS wndclass ; wndclass.style ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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