windows-xp/Source/XPSP1/NT/base/remoteboot/rbinstal/utils.cpp

/****************************************************************************

   Copyright (c) Microsoft Corporation 1997
   All rights reserved
 
 ***************************************************************************/

#include "pch.h"

DEFINE_MODULE("Utils");

#define SMALL_BUFFER_SIZE   256

//
// Centers a dialog.
//
void 
CenterDialog( 
    HWND hwndDlg )
{
    RECT    rc;
    RECT    rcScreen;
    int     x, y;
    int     cxDlg, cyDlg;
    int     cxScreen; 
    int     cyScreen; 

    SystemParametersInfo( SPI_GETWORKAREA, 0, &rcScreen, 0 );

    cxScreen = rcScreen.right - rcScreen.left;
    cyScreen = rcScreen.bottom - rcScreen.top;

    GetWindowRect( hwndDlg, &rc );

    cxDlg = rc.right - rc.left;
    cyDlg = rc.bottom - rc.top;

    y = rcScreen.top + ( ( cyScreen - cyDlg ) / 2 );
    x = rcScreen.left + ( ( cxScreen - cxDlg ) / 2 );

    SetWindowPos( hwndDlg, NULL, x, y, 0, 0, SWP_NOSIZE | SWP_NOACTIVATE );
}

//
// Eats all mouse and keyboard messages.
//
void 
ClearMessageQueue( void )
{
    MSG   msg;

    while ( PeekMessage( (LPMSG)&msg, NULL, WM_KEYFIRST, WM_MOUSELAST, 
                PM_NOYIELD | PM_REMOVE ) );
}

//
// Create a message box from resource strings.
//
int
MessageBoxFromStrings(
    HWND hParent,
    UINT idsCaption,
    UINT idsText,
    UINT uType )
{
    TCHAR szText[ SMALL_BUFFER_SIZE ];
    TCHAR szCaption[ SMALL_BUFFER_SIZE ];
	DWORD dw;

    dw = LoadString( g_hinstance, idsCaption, szCaption, ARRAYSIZE( szCaption ));
	Assert( dw );
    dw = LoadString( g_hinstance, idsText, szText, ARRAYSIZE( szText ));
	Assert( dw );

    return MessageBox( hParent, szText, szCaption, uType );
}