#include <windows.h>
LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam );
void DisplayDigit(HDC hdc,int iNumber);
void DisplayTwoDigits(HDC hdc,int iNumber,BOOL fSuppress);
void DisplayTime(HDC hdc,BOOL f24Hour, BOOL fSuppress);
void DisplayTwoDigits(HDC hdc,int iNumber,BOOL fSuppress);
void DisplayColon(HDC hdc);
#define ID_TIMER 1
int WINAPI WinMain( HINSTANCE hInstance,HINSTANCE hPrevInstance, LPSTR lpCmdLine,int nCmdShow)
{
static TCHAR szAppName[]=TEXT("DlgProc");
HWND hwnd;
MSG msg;
WNDCLASS wndcls;
wndcls.cbClsExtra=0;
wndcls.cbWndExtra=0;
wndcls.hbrBackground=(HBRUSH)GetStockObject(0);
wndcls.hCursor=LoadCursor(NULL,IDC_ARROW);
wndcls.hIcon=LoadIcon(NULL,IDI_APPLICATION);
wndcls.hInstance=hInstance;
wndcls.lpfnWndProc=WindowProc;
wndcls.lpszClassName=szAppName;
wndcls.lpszMenuName=NULL;
wndcls.style=CS_HREDRAW|CS_VREDRAW;
if(!RegisterClass(&wndcls))
{
MessageBox(NULL,TEXT("Windows NT"),szAppName,MB_ICONERROR);
return 0;
}
hwnd=CreateWindow(
szAppName,
TEXT("Beeper1 Timer Demo"),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
CW_USEDEFAULT,
NULL,NULL,hInstance,NULL);
ShowWindow(hwnd,SW_NORMAL);
UpdateWindow(hwnd);
while(GetMessage(&msg,NULL,0,0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return msg.wParam;
}
void DisplayDigit(HDC hdc,int iNumber)
{
static BOOL fSevenSegment[10][7]={
1,1,1,0,1,1,1,
0,0,1,0,0,1,0,
1,0,1,1,1,0,1,
1,0,1,1,0,1,1,
0,1,1,1,0,1,0,
1,1,0,1,0,1,1,
1,1,0,1,1,1,1,
1,0,1,0,0,1,0,
1,1,1,1,1,1,1,
1,1,1,1,0,1,1};
static POINT ptSegment[7][6]={
7,6,11,2,31,2,35,6,31,10,11,10,
6,7,10,11,10,31,6,35,2,31,2,11,
36,7,40,11,40,31,36,35,32,31,32,11,
7,36,11,32,31,32,35,36,31,40,11,40,
6,37,10,41,10,61,6,65,2,61,2,41,
36,37,40,41,40,61,36,65,32,61,32,41,
7,66,11,62,31,62,35,66,31,70,11,70};
int iSeg;
for(iSeg=0;iSeg<7;iSeg++)
if(fSevenSegment[iNumber][iSeg])
Polygon(hdc,ptSegment[iSeg],6);
}
void DisplayTwoDigits(HDC hdc,int iNumber,BOOL fSuppress)
{
if(!fSuppress||(iNumber/10!=0))
DisplayDigit(hdc,iNumber/10);
OffsetWindowOrgEx(hdc,-42,0,NULL);
DisplayDigit(hdc,iNumber%10);
OffsetWindowOrgEx(hdc,-42,0,NULL);
}
void DisplayColon(HDC hdc)
{
POINT ptColon[2][4]={2,21,6,17,10,21,6,25,2,51,6,47,10,51,6,55};
Polygon(hdc,ptColon[0],4);
Polygon(hdc,ptColon[1],4);
OffsetWindowOrgEx(hdc,-12,0,NULL);
}
void DisplayTime(HDC hdc,BOOL f24Hour, BOOL fSuppress)
{
SYSTEMTIME st;
GetLocalTime(&st);
if(f24Hour)
DisplayTwoDigits(hdc,st.wHour,fSuppress);
else
DisplayTwoDigits(hdc,(st.wHour%=12)?st.wHour:12,fSuppress);
DisplayColon(hdc);
DisplayTwoDigits(hdc,st.wMinute,FALSE);
DisplayColon(hdc);
DisplayTwoDigits(hdc,st.wSecond,FALSE);
}
LRESULT CALLBACK WindowProc(
HWND hwnd, // handle to window
UINT uMsg, // message identifier
WPARAM wParam, // first message parameter
LPARAM lParam // second message parameter
)
{
static BOOL f24Hour,fSuppress;
static HBRUSH hBrush;
static int cxClient,cyClient;
HDC hdc;
PAINTSTRUCT ps;
TCHAR szBuffer[2];
switch(uMsg)
{
case WM_CREATE:
hBrush=CreateSolidBrush(RGB(0,255,0));
SetTimer(hwnd,ID_TIMER,1000,NULL);
break;
case WM_SETTINGCHANGE:
GetLocaleInfo(LOCALE_USER_DEFAULT,LOCALE_ITIME,szBuffer,2);
f24Hour=(szBuffer[0]=='1');
GetLocaleInfo(LOCALE_USER_DEFAULT,LOCALE_ITLZERO,szBuffer,2);
f24Hour=(szBuffer[0]=='0');
InvalidateRect(hwnd,NULL,TRUE);
break;
case WM_SIZE:
cxClient=LOWORD(lParam);
cyClient=HIWORD(lParam);
break;
case WM_TIMER:
InvalidateRect(hwnd,NULL,TRUE);
//MessageBeep(0);
break;
case WM_PAINT:
hdc=BeginPaint(hwnd,&ps);
SetMapMode(hdc,MM_ISOTROPIC);
SetWindowExtEx(hdc,276,72,NULL);
SetViewportExtEx(hdc,cxClient,cyClient,NULL);
SetWindowOrgEx(hdc,138,36,NULL);
SetViewportOrgEx(hdc,cxClient/2,cyClient/2,NULL);
SelectObject(hdc,GetStockObject(NULL_PEN));
SelectObject(hdc,hBrush);
DisplayTime(hdc,f24Hour,fSuppress);
EndPaint(hwnd,&ps);
break;
case WM_DESTROY:
KillTimer(hwnd,ID_TIMER);
DeleteObject(hBrush);
PostQuitMessage(0);
break;
}
return DefWindowProc(hwnd,uMsg,wParam,lParam);
}
