Source code of Windows XP (NT5)
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/*******************************************************************************
*
* (C) COPYRIGHT MICROSOFT CORP., 1996
*
* TITLE: POWERCFP.H
*
* VERSION: 2.0
*
* AUTHOR: ReedB
*
* DATE: 17 Oct, 1996
*
* DESCRIPTION:
* Public declarations for PowerCfg notification interface. Systray uses
* this interface to notify PowerCfg that the user has changed something.
*
*******************************************************************************/
// Private PowerCfg notification message.
#define PCWM_NOTIFYPOWER (WM_USER + 201)
#define IDS_POWERPOLICIESTITLE 400
/*******************************************************************************
*
* PowerCfg_Notify
*
* DESCRIPTION:
* Called by Systray to notify PowerCfg that something has changed.
*
* PARAMETERS:
*
*******************************************************************************/
_inline BOOL PowerCfg_Notify(void)
{
HINSTANCE hInst;
static LPTSTR lpszWndName;
TCHAR szBuf[128];
HWND hwnd, hwndPC;
int iLen;
// first time initialization of the PowerCfg top level property sheet title.
if (!lpszWndName) {
if (hInst = LoadLibrary(TEXT("powercfg.cpl"))) {
iLen = LoadString(hInst, IDS_POWERPOLICIESTITLE, szBuf, sizeof(szBuf)/sizeof(TCHAR));
if (iLen) {
if (lpszWndName = LocalAlloc(0, (iLen + 1) * sizeof(TCHAR))) {
lstrcpy(lpszWndName, szBuf);
}
}
}
}
// Notify the child of the top level window.
if (lpszWndName) {
hwndPC = FindWindow(WC_DIALOG, lpszWndName);
if (hwndPC) {
hwnd = GetWindow(hwndPC, GW_CHILD);
if (hwnd) {
return (BOOL)SendMessage(hwnd, PCWM_NOTIFYPOWER, 0, 0);
}
}
}
return FALSE;
}