ReactOS 0.4.15-dev-8235-gcd88a97
screensave.c File Reference
#include <windows.h>
#include <windowsx.h>
#include <tchar.h>
#include "globals.h"
#include "message.h"
#include "matrix.h"
#include "resource.h"
Include dependency graph for screensave.c:

Go to the source code of this file.

Functions

 HMONITOR (WINAPI *pfnEnumDisplayMonitors)(HDC
 
 BOOL (WINAPI *pfnGetMonitorInfo)(HMONITOR
 
BOOL CALLBACK MonitorEnumProc (HMONITOR hMonitor, HDC hdcMonitor, RECT *rcMonitor, LPARAM Param)
 
BOOL ScreenSaver (HWND hwndParent)
 
VOID ParseCommandLine (LPWSTR szCmdLine, UCHAR *chOption, HWND *hwndParent)
 
int CALLBACK wWinMain (HINSTANCE hInst, HINSTANCE hPrev, LPWSTR lpCmdLine, int iCmdShow)
 

Variables

 LPCRECT
 
 MONITORENUMPROC
 
 LPARAM
 
 LPMONITORINFO
 

Function Documentation

◆ BOOL()

BOOL ( WINAPI pfnGetMonitorInfo)

◆ HMONITOR()

HMONITOR ( WINAPI pfnEnumDisplayMonitors)

◆ MonitorEnumProc()

BOOL CALLBACK MonitorEnumProc ( HMONITOR  hMonitor,
HDC  hdcMonitor,
RECT rcMonitor,
LPARAM  Param 
)

Definition at line 33 of file screensave.c.

34{
35 HWND hwnd;
36
37 // Create a screensaver on this monitor!
38 hwnd = CreateScreenSaveWnd((HWND)Param, rcMonitor);
39
40 // For some reason windows always places this window at 0,0...
41 // position it ourselves
42 SetWindowPos(hwnd, 0, rcMonitor->left, rcMonitor->top, 0, 0,
44
45 return TRUE;
46}
#define TRUE
Definition: types.h:120
HWND CreateScreenSaveWnd(HWND hwndParent, RECT *rect)
Definition: matrix.c:390
LONG top
Definition: windef.h:307
LONG left
Definition: windef.h:306
_In_ LONG _In_ HWND hwnd
Definition: winddi.h:4023
#define SWP_NOACTIVATE
Definition: winuser.h:1242
BOOL WINAPI SetWindowPos(_In_ HWND, _In_opt_ HWND, _In_ int, _In_ int, _In_ int, _In_ int, _In_ UINT)
#define SWP_NOSIZE
Definition: winuser.h:1245
#define SWP_SHOWWINDOW
Definition: winuser.h:1248
#define SWP_NOZORDER
Definition: winuser.h:1247

Referenced by CDesktopBrowser::_Resize(), and ScreenSaver().

◆ ParseCommandLine()

VOID ParseCommandLine ( LPWSTR  szCmdLine,
UCHAR chOption,
HWND hwndParent 
)

Definition at line 103 of file screensave.c.

104{
105 UCHAR ch = *szCmdLine++;
106
107 if(ch == '-' || ch == '/')
108 ch = *szCmdLine++;
109
110 if(ch >= 'A' && ch <= 'Z')
111 ch += 'a' - 'A'; //convert to lower case
112
113 *chOption = ch;
114 ch = *szCmdLine++;
115
116 if(ch == ':')
117 ch = *szCmdLine++;
118
119 while(ch == ' ' || ch == '\t')
120 ch = *szCmdLine++;
121
122 if(isdigit(ch))
123 {
124 ULONG_PTR i = _wtoi(szCmdLine - 1);
125 *hwndParent = (HWND)i;
126 }
127 else
128 *hwndParent = NULL;
129}
#define isdigit(c)
Definition: acclib.h:68
static HWND hwndParent
Definition: cryptui.c:300
#define NULL
Definition: types.h:112
HANDLE HWND
Definition: compat.h:19
GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
Definition: glfuncs.h:248
_Check_return_ _CRTIMP int __cdecl _wtoi(_In_z_ const wchar_t *_Str)
uint32_t ULONG_PTR
Definition: typedefs.h:65
unsigned char UCHAR
Definition: xmlstorage.h:181

Referenced by wWinMain().

◆ ScreenSaver()

BOOL ScreenSaver ( HWND  hwndParent)

Definition at line 51 of file screensave.c.

52{
53 HMODULE hUser32;
54 UINT nPreviousState;
55 MSG msg;
56
58
59 SystemParametersInfo(SPI_SETSCREENSAVERRUNNING, TRUE, &nPreviousState, 0);
60
61 // Dynamically locate API call from USER32 - not present in all versions
62 hUser32 = GetModuleHandle(_T("USER32.DLL"));
63 pfnEnumDisplayMonitors = (PVOID)GetProcAddress(hUser32, "EnumDisplayMonitors");
64
65 // If we're running Win2k+ then the API is available...so call it!
66 if(pfnEnumDisplayMonitors && hwndParent == 0)
67 {
68 pfnEnumDisplayMonitors(NULL, NULL, MonitorEnumProc, 0);
69 }
70 // Otherwise simulate by calling enum-proc manually
71 else
72 {
73 RECT rect;
74
75 rect.left = 0;
77 rect.top = 0;
79
81 }
82
83 // run message loop to handle all screen-saver windows
84 while(GetMessage(&msg, NULL,0,0))
85 {
88 }
89
90 SystemParametersInfo(SPI_SETSCREENSAVERRUNNING, FALSE, &nPreviousState, 0);
91
92 return TRUE;
93}
#define msg(x)
Definition: auth_time.c:54
#define FALSE
Definition: types.h:117
#define GetProcAddress(x, y)
Definition: compat.h:753
void InitScreenSaveClass()
unsigned int UINT
Definition: ndis.h:50
BOOL CALLBACK MonitorEnumProc(HMONITOR hMonitor, HDC hdcMonitor, RECT *rcMonitor, LPARAM Param)
Definition: screensave.c:33
& rect
Definition: startmenu.cpp:1413
TW_UINT32 TW_UINT16 TW_UINT16 MSG
Definition: twain.h:1829
void * PVOID
Definition: typedefs.h:50
#define _T(x)
Definition: vfdio.h:22
#define GetModuleHandle
Definition: winbase.h:3827
LONG_PTR LPARAM
Definition: windef.h:208
BOOL WINAPI TranslateMessage(_In_ const MSG *)
#define SM_CYSCREEN
Definition: winuser.h:960
#define GetMessage
Definition: winuser.h:5799
#define SM_CXSCREEN
Definition: winuser.h:959
#define DispatchMessage
Definition: winuser.h:5774
#define SystemParametersInfo
Definition: winuser.h:5867
int WINAPI GetSystemMetrics(_In_ int)

Referenced by wWinMain().

◆ wWinMain()

int CALLBACK wWinMain ( HINSTANCE  hInstance,
HINSTANCE  hPrevInstance,
LPWSTR  lpCmdLine,
int  nShowCmd 
)

This file has no copyright assigned and is placed in the Public Domain. This file is part of the w64 mingw-runtime package. No warranty is given; refer to the file DISCLAIMER.PD within this package.

Definition at line 134 of file screensave.c.

135{
137 UCHAR chOption;
138
139 // Make sure that only 1 instance runs at a time -
140 // Win98 seems to want us to restart every 5 seconds!!
142 {
143 return 0;
144 }
145
146 LoadSettings();
147
148 ParseCommandLine(lpCmdLine, &chOption, &hwndParent);
149
150 switch(chOption)
151 {
152 case 's': return ScreenSaver(NULL); // screen save
153 case 'p': return ScreenSaver(hwndParent); // preview in small window
154 case 'a': return ChangePassword(hwndParent); // ask for password
155 case 'c': return Configure(hwndParent); // configuration dialog
156 default: return Configure(hwndParent); // configuration dialog
157 }
158
159 return 0;
160}
#define APPNAME
Definition: 3dtext.c:40
void LoadSettings(void)
Definition: settings.c:53
BOOL ChangePassword(HWND hwnd)
Definition: password.c:48
static LRESULT Configure(const CodecInfo *pi, HWND hWnd)
Definition: msrle32.c:1192
VOID ParseCommandLine(LPWSTR szCmdLine, UCHAR *chOption, HWND *hwndParent)
Definition: screensave.c:103
BOOL ScreenSaver(HWND hwndParent)
Definition: screensave.c:51
#define FindWindowEx
Definition: winuser.h:5787

Variable Documentation

◆ LPARAM

Definition at line 26 of file screensave.c.

◆ LPCRECT

Definition at line 26 of file screensave.c.

◆ LPMONITORINFO

Definition at line 27 of file screensave.c.

◆ MONITORENUMPROC

MONITORENUMPROC

Definition at line 26 of file screensave.c.