dpi.c

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/*
 * PROJECT:     ReactOS Kernel - Vista+ APIs
 * LICENSE:     LGPL-2.1-or-later (https://spdx.org/licenses/LGPL-2.1-or-later)
 * PURPOSE:     DPI functions for user32 and user32_vista.
 * COPYRIGHT:   Copyright 2024 Carl Bialorucki <cbialo2@outlook.com>
 */
 
#define WIN32_NO_STATUS
#define _INC_WINDOWS
#define COM_NO_WINDOWS_H
#include <windef.h>
#include <wingdi.h>
#include <winuser.h>
 
#define NDEBUG
#include <debug.h>
 
/*
 * @stub
 */
UINT
WINAPI
GetDpiForSystem(VOID)
{
    HDC hDC;
    UINT Dpi;
    hDC = GetDC(NULL);
    Dpi = GetDeviceCaps(hDC, LOGPIXELSY);
    ReleaseDC(NULL, hDC);
    return Dpi;
}
 
/*
 * @stub
 */
UINT
WINAPI
GetDpiForWindow(
    _In_ HWND hWnd)
{
    UNIMPLEMENTED_ONCE;
    UNREFERENCED_PARAMETER(hWnd);
    return GetDpiForSystem();
}