ReactOS 0.4.15-dev-7674-gc0b4db1
circles.c File Reference
#include <windows.h>
#include <scrnsave.h>
#include <tchar.h>
#include "resource.h"
Include dependency graph for circles.c:

Go to the source code of this file.

Macros

#define RANDOM_COLOR   (rand () % 256)
 
#define APPNAME   _T("Circles")
 
#define APP_TIMER   1
 
#define APP_TIMER_INTERVAL   100
 
#define MAX_CIRCLES   50
 

Functions

LRESULT WINAPI ScreenSaverProc (HWND hwnd, UINT iMsg, WPARAM wparam, LPARAM lparam)
 
BOOL WINAPI ScreenSaverConfigureDialog (HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
 
BOOL WINAPI RegisterDialogClasses (HANDLE hInst)
 

Variables

int circlesCount
 
int width
 
int x
 
int y
 

Macro Definition Documentation

◆ APP_TIMER

#define APP_TIMER   1

Definition at line 27 of file circles.c.

◆ APP_TIMER_INTERVAL

#define APP_TIMER_INTERVAL   100

Definition at line 28 of file circles.c.

◆ APPNAME

#define APPNAME   _T("Circles")

Definition at line 26 of file circles.c.

◆ MAX_CIRCLES

#define MAX_CIRCLES   50

Definition at line 29 of file circles.c.

◆ RANDOM_COLOR

#define RANDOM_COLOR   (rand () % 256)

Definition at line 24 of file circles.c.

Function Documentation

◆ RegisterDialogClasses()

BOOL WINAPI RegisterDialogClasses ( HANDLE  hInst)

Definition at line 99 of file circles.c.

100{
101 TCHAR szMessage[256];
102 TCHAR szTitle[25];
103
104 LoadString(hInst, IDS_TEXT, szMessage, sizeof(szMessage) / sizeof(TCHAR));
105 LoadString(hInst, IDS_DESCRIPTION, szTitle, sizeof(szTitle) / sizeof(TCHAR));
106
108
109 return FALSE;
110}
#define IDS_DESCRIPTION
Definition: resource.h:4
#define IDS_TEXT
Definition: resource.h:3
#define NULL
Definition: types.h:112
#define FALSE
Definition: types.h:117
HINSTANCE hInst
Definition: dxdiag.c:13
TCHAR szTitle[MAX_LOADSTRING]
Definition: magnifier.c:35
#define MB_ICONEXCLAMATION
Definition: winuser.h:784
#define MB_OK
Definition: winuser.h:789
#define LoadString
Definition: winuser.h:5818
#define MessageBox
Definition: winuser.h:5821
char TCHAR
Definition: xmlstorage.h:189

◆ ScreenSaverConfigureDialog()

BOOL WINAPI ScreenSaverConfigureDialog ( HWND  hDlg,
UINT  uMsg,
WPARAM  wParam,
LPARAM  lParam 
)

Definition at line 92 of file circles.c.

93{
94 return FALSE;
95}

◆ ScreenSaverProc()

LRESULT WINAPI ScreenSaverProc ( HWND  hwnd,
UINT  iMsg,
WPARAM  wparam,
LPARAM  lparam 
)

Definition at line 34 of file circles.c.

35{
36 HDC hdc;
37 RECT rect;
38 HBRUSH hbrush, hbrushOld;
39
40 switch (iMsg)
41 {
42 case WM_CREATE:
44 break;
45
46 case WM_DESTROY:
49 return 0;
50
51 case WM_TIMER:
52 hdc = GetDC (hwnd);
55 hbrushOld = SelectObject (hdc, hbrush);
56
57 x = rand () % rect.right;
58 y = rand () % rect.bottom;
59
60 /* the circle will be 10% of total screen */
61 width = rect.right / 10;
62 if (rect.bottom / 10 < width)
63 width = rect.bottom / 10;
64
65 /* Draw circle on screen */
66 Ellipse (
67 hdc,
68 x,
69 y,
70 x + width,
71 y + width);
72
73 //Track the number of painted circles on scren
76 {
78 circlesCount = 0;
79 }
80
81 SelectObject (hdc, hbrushOld);
84
85 return 0;
86 }
87
88 return DefScreenSaverProc (hwnd, iMsg, wparam, lparam);
89}
static HBRUSH hbrush
@ lparam
Definition: SystemMenu.c:31
@ wparam
Definition: SystemMenu.c:30
int circlesCount
Definition: circles.c:31
#define APP_TIMER_INTERVAL
Definition: circles.c:28
#define RANDOM_COLOR
Definition: circles.c:24
#define MAX_CIRCLES
Definition: circles.c:29
#define APP_TIMER
Definition: circles.c:27
#define TRUE
Definition: types.h:120
#define RGB(r, g, b)
Definition: precomp.h:62
pKey DeleteObject()
GLint GLint GLint GLint GLint x
Definition: gl.h:1548
GLint GLint GLint GLint GLint GLint y
Definition: gl.h:1548
GLint GLint GLsizei width
Definition: gl.h:1546
_Check_return_ int __cdecl rand(void)
Definition: rand.c:10
HDC hdc
Definition: main.c:9
static HDC
Definition: imagelist.c:92
LRESULT WINAPI DefScreenSaverProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
Definition: scrnsave.c:92
& rect
Definition: startmenu.cpp:1413
_In_ LONG _In_ HWND hwnd
Definition: winddi.h:4023
BOOL WINAPI Ellipse(_In_ HDC, _In_ int, _In_ int, _In_ int, _In_ int)
HGDIOBJ WINAPI SelectObject(_In_ HDC, _In_ HGDIOBJ)
Definition: dc.c:1539
HBRUSH WINAPI CreateSolidBrush(_In_ COLORREF)
int WINAPI ReleaseDC(_In_opt_ HWND, _In_ HDC)
#define WM_CREATE
Definition: winuser.h:1607
__analysis_noreturn void WINAPI PostQuitMessage(_In_ int)
UINT_PTR WINAPI SetTimer(_In_opt_ HWND, _In_ UINT_PTR, _In_ UINT, _In_opt_ TIMERPROC)
BOOL WINAPI GetClientRect(_In_ HWND, _Out_ LPRECT)
#define WM_TIMER
Definition: winuser.h:1741
HDC WINAPI GetDC(_In_opt_ HWND)
#define WM_DESTROY
Definition: winuser.h:1608
BOOL WINAPI InvalidateRect(_In_opt_ HWND, _In_opt_ LPCRECT, _In_ BOOL)
BOOL WINAPI KillTimer(_In_opt_ HWND, _In_ UINT_PTR)

Variable Documentation

◆ circlesCount

int circlesCount

Definition at line 31 of file circles.c.

Referenced by ScreenSaverProc().

◆ width

Definition at line 32 of file circles.c.

◆ x

int x

Definition at line 32 of file circles.c.

◆ y

int y

Definition at line 32 of file circles.c.