settings.c

ReactOS是一些高手根据Windows XP的内核编写出的类XP。内核实现机理和API函数调用几乎相同。甚至可以兼容XP的程序。喜欢研究系统内核的人可以看一看。

#include <windows.h>
#include <tchar.h>
#include "magnifier.h"

int iZoom = 3;

BOOL bShowWarning = TRUE;

BOOL bFollowMouse = TRUE;
BOOL bFollowFocus = TRUE;
BOOL bFollowCaret = TRUE;

BOOL bInvertColors = FALSE;
BOOL bStartMinimized = FALSE;
BOOL bShowMagnifier = TRUE;

void LoadSettings()
{
	HKEY hkey;
	LONG value;
	ULONG len;

	RegCreateKeyEx(HKEY_CURRENT_USER, _T("Software\\Microsoft\\Magnify"), 0,
		_T(""), 0, KEY_READ, NULL, &hkey, NULL);

	if(ERROR_SUCCESS == RegQueryValueEx(hkey, _T("StationaryMagLevel"),  0, 0, (BYTE *)&value, &len))
	{
		if(value >= 0 && value <= 9)
			iZoom  = value;
	}

	if(ERROR_SUCCESS == RegQueryValueEx(hkey, _T("ShowWarning"), 0, 0, (BYTE *)&value, &len))
		bShowWarning = (value == 0 ? FALSE : TRUE);

	if(ERROR_SUCCESS == RegQueryValueEx(hkey, _T("StationaryInvertColors"), 0, 0, (BYTE *)&value, &len))
		bInvertColors = (value == 0 ? FALSE : TRUE);

	if(ERROR_SUCCESS == RegQueryValueEx(hkey, _T("StationaryStartMinimized"), 0, 0, (BYTE *)&value, &len))
		bStartMinimized = (value == 0 ? FALSE : TRUE);

	if(ERROR_SUCCESS == RegQueryValueEx(hkey, _T("StationaryTrackCursor"), 0, 0, (BYTE *)&value, &len))
		bFollowMouse = (value == 0 ? FALSE : TRUE);

	if(ERROR_SUCCESS == RegQueryValueEx(hkey, _T("StationaryTrackFocus"), 0, 0, (BYTE *)&value, &len))
		bFollowFocus = (value == 0 ? FALSE : TRUE);

	if(ERROR_SUCCESS == RegQueryValueEx(hkey, _T("StationaryTrackSecondaryFocus"), 0, 0, (BYTE *)&value, &len))
		bFollowFocus = (value == 0 ? FALSE : TRUE);

	if(ERROR_SUCCESS == RegQueryValueEx(hkey, _T("StationaryTrackText"), 0, 0, (BYTE *)&value, &len))
		bFollowCaret = (value == 0 ? FALSE : TRUE);

	RegCloseKey(hkey);
}

void SaveSettings()
{
	HKEY hkey;
	LONG value;

	RegCreateKeyEx(HKEY_CURRENT_USER, _T("Software\\Microsoft\\Magnify"), 0,
		_T(""), 0, KEY_WRITE, NULL, &hkey, NULL);

	value = iZoom;
	RegSetValueEx(hkey, _T("StationaryMagLevel"), 0, REG_DWORD, (BYTE *)&value, sizeof value);

	value = bShowWarning;
	RegSetValueEx(hkey, _T("ShowWarning"), 0, REG_DWORD, (BYTE *)&value, sizeof value);

	value = bInvertColors;
	RegSetValueEx(hkey, _T("StationaryInvertColors"), 0, REG_DWORD, (BYTE *)&value, sizeof value);

	value = bStartMinimized;
	RegSetValueEx(hkey, _T("StationaryStartMinimized"), 0, REG_DWORD, (BYTE *)&value, sizeof value);

	value = bFollowMouse;
	RegSetValueEx(hkey, _T("StationaryTrackCursor"), 0, REG_DWORD, (BYTE *)&value, sizeof value);

	value = bFollowFocus;
	RegSetValueEx(hkey, _T("StationaryTrackFocus"), 0, REG_DWORD, (BYTE *)&value, sizeof value);

	value = bFollowFocus;
	RegSetValueEx(hkey, _T("StationaryTrackSecondaryFocus"), 0, REG_DWORD, (BYTE *)&value, sizeof value);

	value = bFollowCaret;
	RegSetValueEx(hkey, _T("StationaryTrackText"), 0, REG_DWORD, (BYTE *)&value, sizeof value);

	RegCloseKey(hkey);
}