reactos/base/system/logonui/logonui.c

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/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS Logon User Interface Host
* FILE: base/system/logonui/logonui.c
* PROGRAMMERS: Ged Murphy (gedmurphy@reactos.org)
*/
#include "logonui.h"
/* DATA **********************************************************************/
/* GLOBALS ******************************************************************/
PINFO g_pInfo = NULL;
/* FUNCTIONS ****************************************************************/
static HDC
DrawBaseBackground(HDC hdcDesktop)
{
HDC hdcMem;
hdcMem = NT5_DrawBaseBackground(hdcDesktop);
return hdcMem;
}
static VOID
DrawLogoffScreen(HDC hdcMem)
{
/* Draw the logoff icon */
NT5_CreateLogoffScreen(L"Saving your settings...", hdcMem);
}
static ULONG
GetULONG(LPWSTR String)
{
UINT i, Length;
ULONG Value;
LPWSTR StopString;
i = 0;
/* Get the string length */
Length = (UINT)wcslen(String);
/* Check the string only consists of numbers */
while ((i < Length) && ((String[i] < L'0') || (String[i] > L'9'))) i++;
if ((i >= Length) || ((String[i] < L'0') || (String[i] > L'9')))
{
return (ULONG)-1;
}
/* Convert it */
Value = wcstoul(&String[i], &StopString, 10);
return Value;
}
static ULONG
GetULONG2(LPWSTR String1, LPWSTR String2, PINT i)
{
ULONG Value;
/* Check the first string value */
Value = GetULONG(String1);
if (Value == (ULONG)-1)
{
/* Check the second string value isn't a switch */
if (String2[0] != L'-')
{
/* Check the value */
Value = GetULONG(String2);
*i += 1;
}
}
return Value;
}
static BOOL
ParseCmdline(int argc, WCHAR* argv[])
{
return TRUE;
}
static VOID
Run(VOID)
{
HWND hDesktopWnd;
HDC hdcDesktop, hdcMem;
/* Get the screen size */
g_pInfo->cx = GetSystemMetrics(SM_CXSCREEN);
g_pInfo->cy = GetSystemMetrics(SM_CYSCREEN);
hDesktopWnd = GetDesktopWindow();
/* Get the DC for the desktop */
hdcDesktop = GetDCEx(hDesktopWnd, NULL, DCX_CACHE);
if (hdcDesktop)
{
/* Initialize the base background onto a DC */
hdcMem = DrawBaseBackground(hdcDesktop);
if (hdcMem)
{
/* TEST : Draw logoff screen */
DrawLogoffScreen(hdcMem);
/* Blit the off-screen DC to the desktop */
BitBlt(hdcDesktop,
0,
0,
g_pInfo->cx,
g_pInfo->cy,
hdcMem,
0,
0,
SRCCOPY);
/* Delete the memory DC */
DeleteDC(hdcMem);
}
/* Release the desktop DC */
ReleaseDC(hDesktopWnd, hdcDesktop);
}
}
int WINAPI
wWinMain(IN HINSTANCE hInst,
IN HINSTANCE hPrevInstance,
IN LPWSTR lpszCmdLine,
IN int nCmdShow)
{
LPWSTR *lpArgs;
INT NumArgs;
/* Allocate memory for the data */
g_pInfo = (PINFO)HeapAlloc(GetProcessHeap(),
HEAP_ZERO_MEMORY,
sizeof(INFO));
if (!g_pInfo) return -1;
g_pInfo->hInstance = hInst;
/* Get the command line args */
lpArgs = CommandLineToArgvW(lpszCmdLine, &NumArgs);
if (lpArgs)
{
/* Parse the command line */
if (ParseCmdline(NumArgs, lpArgs))
{
/* Start the main routine */
Run();
}
}
/* Free the data */
HeapFree(GetProcessHeap(),
0,
g_pInfo);
return 0;
}
/* EOF */