BatteryMonitor Namespace Reference

Root namespace. More...

Functions
void	addNotifyIcon (HWND hwnd)
	Adds an icon to the taskbar. More...
void	cleanUp (HWND hwnd)
	Memory and handler cleanups, taskbar icon removal. More...
void	errOut (void)
	Error output. More...
BATTERY_INFORMATION	getBatteryInformation ()
	retrieves battery informations from the system. More...
void	initDevice (void)
	Retrieves the path of the battery device. More...
HWND	setupWindow (int nCmdShow)
	Shows the main window. More...
long	setupWindowClass (void)
	registers the window class stored in classname. More...
void	showBatteryInfo (HWND hwnd)
	Shows a balloon tip with battery information.
void	shutdown (void)
	Tries to shut down the computer. More...
LRESULT CALLBACK	wndProc (HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
	The window procedure. More...

Variables
double	battery =0
	Battery charge. More...
long	batterylifetime =-1
	Remaining battery lifetime in seconds. More...
HBRUSH	blue
	Blue brush.
char	classname [14]
	Name of registered window class. More...
char *	devicepath
	Path to battery device. More...
HBRUSH	green
	Green brush.
HINSTANCE	instance
	Application instance. More...
HBRUSH	red
	Red brush.
bool	shutdown_enabled =false
	Indicates, if shutdown was invoked by BatteryMonitor.
UINT	WM_TASKBARCREATED =0
	Window message for taskbarcreated-event. More...
HBRUSH	yellow
	Yellow brush.

Detailed Description

Root namespace.

Function Documentation

void BatteryMonitor::addNotifyIcon

(

HWND

hwnd

)

Adds an icon to the taskbar.

Parameters

[in]

hwnd

The window handle of the window whose window procedure receives the events occuring.

See also

Windows API

Definition at line 234 of file main.cpp.

void BatteryMonitor::cleanUp

(

HWND

hwnd

)

Memory and handler cleanups, taskbar icon removal.

Parameters

[in]

hwnd

The window handle of the window associated with the taskbar icon.

Definition at line 92 of file main.cpp.

void BatteryMonitor::errOut

(

void

)

Error output.

If BatteryMonitor is compiled in debug configuration (with a DEBUG defined) , a messagebox containing the error text is shown.

Definition at line 123 of file main.cpp.

BATTERY_INFORMATION BatteryMonitor::getBatteryInformation

(

)

retrieves battery informations from the system.

This funktion retrieves battery information from the system. If any error occurs, errOut() will be called and the DesignedCapacity member of the returned struct is set to 0.

Returns

Battery informations

Definition at line 328 of file main.cpp.

void BatteryMonitor::initDevice

(

void

)

Retrieves the path of the battery device.

This function retrieves the path of the battery device and stores it into devicepath.

Definition at line 301 of file main.cpp.

HWND BatteryMonitor::setupWindow

(

int

nCmdShow

)

Shows the main window.

This funktion creates a window of the class stored in classname. This window is automatically set click-through, transparent and topmost.

Parameters

[in]

nCmdShow

Can override the default visibility-parameters

Returns

The window handle of the newly created window

See also

Windows API

Definition at line 66 of file main.cpp.

long BatteryMonitor::setupWindowClass

(

void

)

registers the window class stored in classname.

Returns

The error code of RegisterClassEx, the corresponding windows api call.

Definition at line 105 of file main.cpp.

void BatteryMonitor::shutdown

(

void

)

Tries to shut down the computer.

This function is called if remaining battery lifetime is less than 5 minutes.

See also

addNotifyIcon(HWND hwnd)

Definition at line 273 of file main.cpp.

LRESULT CALLBACK BatteryMonitor::wndProc	(	HWND	hwnd,
		UINT	msg,
		WPARAM	wParam,
		LPARAM	lParam
	)

The window procedure.

Here, all window logic is done such as mouse handling and so on.

See also

Windows API for further information

Definition at line 133 of file main.cpp.

Variable Documentation

double BatteryMonitor::battery =0

Battery charge.

Battery charge, positive if battery is discharging, negative if charging. (e.g. if 75% and changing, battery is 0.75). If battery status cannot be determined, battery is 2.

Definition at line 142 of file main.h.

long BatteryMonitor::batterylifetime =-1

Remaining battery lifetime in seconds.

Remaining battery lifetime in seconds. -1 is status cannot be determined.

Definition at line 148 of file main.h.

char BatteryMonitor::classname[14]

Name of registered window class.

See also

Windows API

Definition at line 154 of file main.h.

char* BatteryMonitor::devicepath

Path to battery device.

The batteryinformation can be read from a pseudo-file, which path is stored here.

See also

Windows API

Definition at line 115 of file main.h.

HINSTANCE BatteryMonitor::instance

Application instance.

See also

Windows API

Definition at line 134 of file main.h.

UINT BatteryMonitor::WM_TASKBARCREATED =0

Window message for taskbarcreated-event.

This message must be registered with windows, so that the application gets informed if the taskbar is (re-)created. This is necessary to update the taskbar-icon.

Definition at line 162 of file main.h.