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unfuck.h
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Compatibility layer for old NT OSes *
* Written by Raymond Gillibert in 2021 *
* THIS FILE IS NOT UNDER GPL but under the WTFPL. *
* DO WHAT THE FUCK YOU WANT WITH THIS CODE! *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#ifndef _UNFUCK_NT_
#define _UNFUCK_NT_
#include <windows.h>
#include <oleacc.h>
#include <stdio.h>
#include "nanolibc.h"
/* #include <dwmapi.h> */
enum DWMWINDOWATTRIBUTE {
/* Windows Vista+ */
DWMWA_NCRENDERING_ENABLED=1,
DWMWA_NCRENDERING_POLICY,
DWMWA_TRANSITIONS_FORCEDISABLED,
DWMWA_ALLOW_NCPAINT,
DWMWA_CAPTION_BUTTON_BOUNDS,
DWMWA_NONCLIENT_RTL_LAYOUT,
DWMWA_FORCE_ICONIC_REPRESENTATION,
DWMWA_FLIP3D_POLICY,
DWMWA_EXTENDED_FRAME_BOUNDS,
DWMWA_HAS_ICONIC_BITMAP,
/* Windows 7+ */
DWMWA_DISALLOW_PEEK,
DWMWA_EXCLUDED_FROM_PEEK,
DWMWA_CLOAK,
/* Windows 8+ */
DWMWA_CLOAKED, /* 14 */
DWMWA_FREEZE_REPRESENTATION,
DWMWA_PASSIVE_UPDATE_MODE,
DWMWA_USE_HOSTBACKDROPBRUSH, /* Set, *pvAttribute=BOOL */
/* Windows 10 1809 + (17763 <= build < 18985), Undocumented */
DWMWA_USE_IMMERSIVE_DARK_MODE_PRE20H1=19, /* Set, *pvAttribute=BOOL */
/* Windows 10 21H1 + (build >= 18985) */
DWMWA_USE_IMMERSIVE_DARK_MODE = 20, /* Documented value since Win 11 build 22000 */
/* Windows 11 Build 22000 + */
DWMWA_WINDOW_CORNER_PREFERENCE = 33,
DWMWA_BORDER_COLOR,
DWMWA_CAPTION_COLOR,
DWMWA_TEXT_COLOR,
DWMWA_VISIBLE_FRAME_BORDER_THICKNESS,
/* Windows 11 Build 22621 + */
DWMWA_SYSTEMBACKDROP_TYPE,
DWMWA_LAST,
};
enum DWM_WINDOW_CORNER_PREFERENCE {
DWMWCP_DEFAULT = 0,
DWMWCP_DONOTROUND = 1,
DWMWCP_ROUND = 2,
DWMWCP_ROUNDSMALL = 3,
};
enum MONITOR_DPI_TYPE {
MDT_EFFECTIVE_DPI = 0,
MDT_ANGULAR_DPI = 1,
MDT_RAW_DPI = 2,
MDT_DEFAULT = MDT_EFFECTIVE_DPI
};
/* Invalid pointer with which we initialize
* all dynamically imported functions */
#define IPTR ((FARPROC)(1))
#define QWORD unsigned long long
#ifdef WIN64
#define CopyRect(x, y) (*(x) = *(y))
#define DorQWORD QWORD
#define HIWORDPTR(ll) ((DWORD) (((QWORD) (ll) >> 32) & 0xFFFFFFFF))
#define LOWORDPTR(ll) ((DWORD) (ll))
#define MAKELONGPTR(lo, hi) ((QWORD) (((DWORD) (lo)) | ((QWORD) ((DWORD) (hi))) << 32))
#else
#define DorQWORD unsigned long
#define HIWORDPTR(l) ((WORD) (((DWORD) (l) >> 16) & 0xFFFF))
#define LOWORDPTR(l) ((WORD) (l))
#define MAKELONGPTR(lo, hi) ((DWORD) (((WORD) (lo)) | ((DWORD) ((WORD) (hi))) << 16))
#endif
#ifndef LOBYTE
#define LOBYTE(w) ((BYTE)(w))
#endif
#ifndef HIBYTE
#define HIBYTE(w) ( (BYTE)(((WORD) (w) >> 8) & 0xFF) )
#endif
#ifndef GET_X_LPARAM
#define GET_X_LPARAM(lp) ((int)(short)LOWORD(lp))
#define GET_Y_LPARAM(lp) ((int)(short)HIWORD(lp))
#endif
#define ARR_SZ(x) (sizeof(x) / sizeof((x)[0]))
#define IDAPPLY 0x3021
#ifndef IS_SURROGATE_PAIR
#define IS_HIGH_SURROGATE(wch) (((wch) >= 0xd800) && ((wch) <= 0xdbff))
#define IS_LOW_SURROGATE(wch) (((wch) >= 0xdc00) && ((wch) <= 0xdfff))
#define IS_SURROGATE_PAIR(hs, ls) (IS_HIGH_SURROGATE (hs) && IS_LOW_SURROGATE (ls))
#endif
#ifndef NIIF_USER
#define NIIF_USER 0x00000004
#endif
#ifndef INVALID_FILE_ATTRIBUTES
#define INVALID_FILE_ATTRIBUTES 0xFFFFFFFF
#endif
#ifndef STACK_SIZE_PARAM_IS_A_RESERVATION
#define STACK_SIZE_PARAM_IS_A_RESERVATION 0x10000L
#endif
#ifndef WPF_ASYNCWINDOWPLACEMENT
#define WPF_ASYNCWINDOWPLACEMENT 0x0004
#endif
#ifndef WM_DPICHANGED
#define WM_DPICHANGED 0x02E0
#endif
#if defined(_MSC_VER) && _MSC_VER <= 1200
#define InterlockedIncrement(x) InterlockedIncrement((LONG*)(x))
#define InterlockedDecrement(x) InterlockedDecrement((LONG*)(x))
#endif
#ifndef SCANCODE_SIMULATED
#define SCANCODE_SIMULATED 0x0200
#endif
#ifndef MSAA_MENU_SIG
#define MSAA_MENU_SIG 0xAA0DF00D
typedef struct tagMSAAMENUINFO {
DWORD dwMSAASignature;
DWORD cchWText;
LPWSTR pszWText;
} MSAAMENUINFO,*LPMSAAMENUINFO;
#endif
#ifndef GetWindowLongPtr
#define GetWindowLongPtr GetWindowLong
#define SetWindowLongPtr SetWindowLong
#define GetClassLongPtr GetClassLong
#define SetClassLongPtr SetClassLong
#define GWLP_WNDPROC (-4)
#define GWLP_HINSTANCE (-6)
#define GWLP_HWNDPARENT (-8)
#define GWLP_USERDATA (-21)
#define GWLP_ID (-12)
#endif
#ifndef PROCESS_SUSPEND_RESUME
#define PROCESS_SUSPEND_RESUME (0x0800)
#endif
#ifndef WS_EX_LAYERED
#define WS_EX_LAYERED 0x00080000
#define WS_EX_NOACTIVATE 0x08000000
#define LWA_COLORKEY 0x00000001
#define LWA_ALPHA 0x00000002
#endif
#ifndef WM_XBUTTONDOWN
#define GET_WHEEL_DELTA_WPARAM(wParam) ((short)HIWORD(wParam))
#define WM_XBUTTONDOWN 0x020B
#define WM_XBUTTONUP 0x020C
#define WM_XBUTTONDBLCLK 0x020D
#define WM_MOUSEHWHEEL 0x020e
#define VK_XBUTTON1 0x05
#define VK_XBUTTON2 0x06
#define VK_VOLUME_MUTE 0xAD
#define VK_VOLUME_DOWN 0xAE
#define VK_VOLUME_UP 0xAF
#define MOUSEEVENTF_XDOWN 0x0080
#define MOUSEEVENTF_XUP 0x0100
#define KEYEVENTF_UNICODE 0x0004
#define KEYEVENTF_SCANCODE 0x0008
#endif
#ifndef GCLP_HCURSOR
#define GCLP_HCURSOR (-12)
#define GCLP_HICON (-14)
#endif
//#define LOGA(X, ...) {DWORD err=GetLastError(); FILE *LOG=fopen("ad.log", "a"); fprintf(LOG, X, ##__VA_ARGS__); fprintf(LOG,", LastError=%lu\n",err); fclose(LOG); SetLastError(0); }
#define LOGA LOGfunk
/* Cool warpper for wvsprintf */
static void LOGfunk( const char *fmt, ... )
{
DWORD lerr = GetLastError();
va_list arglist;
char str[512];
HANDLE h;
va_start( arglist, fmt );
wvsprintfA( str, fmt, arglist );
va_end( arglist );
h = CreateFileA( "ad.log",
FILE_APPEND_DATA, FILE_SHARE_READ, NULL, OPEN_ALWAYS,
FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN, NULL);
if( h == INVALID_HANDLE_VALUE )
return;
{
char lerrorstr[16];
DWORD dummy;
lstrcat_sA(str, ARR_SZ(str), " (");
lstrcat_sA(str, ARR_SZ(str), itostrA(lerr, lerrorstr, 10));
lstrcat_sA(str, ARR_SZ(str), ")\n");
WriteFile( h, str, lstrlenA(str), &dummy, NULL );
CloseHandle(h);
SetLastError(0);
}
}
#ifdef LOG_STUFF
#define LOG LOGfunk
#else
#define LOG if(0) LOGdummy
static void LOGdummy(const char *fmt, ...) {}
#endif
#ifdef DEBUG
#include <assert.h>
#else
#undef assert
#define assert(x)
#endif
#if !defined(__STDC_VERSION__) || __STDC_VERSION__ <= 202300L
#ifndef static_assert
#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
// C11 cool _Static_assert
#define static_assert _Static_assert
#else
#define static_assert(x, y) enum assert_static__ { assert_static___ = 1/(x) };
#endif
#endif //static_assert
#endif // [C89 - C23[
/* Stuff missing in MinGW */
#ifndef WM_MOUSEHWHEEL
#define WM_MOUSEHWHEEL 0x020E
#endif
/* on both x64 and x32 */
#define NtSuspendProcess NtSuspendProcessL
#define NtResumeProcess NtResumeProcessL
#ifndef WIN64
#define GetLayeredWindowAttributes GetLayeredWindowAttributesL
#define SetLayeredWindowAttributes SetLayeredWindowAttributesL
#define GetAncestor GetAncestorL
#undef GetMonitorInfo
#define GetMonitorInfo GetMonitorInfoL
#define EnumDisplayMonitors EnumDisplayMonitorsL
#define MonitorFromPoint MonitorFromPointL
#define MonitorFromWindow MonitorFromWindowL
/* #define GetGUIThreadInfo GetGUIThreadInfoL (NT4 SP3+/Win98+) */
#endif
/* Helper function to pop a message bow with error code*/
static void ErrorBox(const TCHAR * const title)
{
LPVOID lpMsgBuf;
FormatMessage(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS,
NULL,
GetLastError(),
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), /* Default language */
(TCHAR *)&lpMsgBuf,
0, NULL
);
MessageBox( NULL, (LPCTSTR)lpMsgBuf, title, MB_OK | MB_ICONWARNING );
/* Free the buffer using LocalFree. */
LocalFree( lpMsgBuf );
}
/* Helper functiont to strcat variable amount of TCHAR*s */
static size_t lstrcatM_s(TCHAR *d, size_t dl, ...)
{
while( *d && dl-- ) d++;
va_list arglist;
va_start( arglist, dl );
while(1) {
if(dl == 0) break; /* End of string! */
const TCHAR *s = (const TCHAR *)va_arg(arglist, const TCHAR*);
if (s == NULL) break;
/* inline naive strcpy_s */
for (; dl && (*d=*s); ++s,++d,--dl);
}
*d = TEXT('\0'); /* Ensure NULL termination */
va_end( arglist );
return dl; /* Remaining TCHARs */
}
static int PrintHwndDetails(HWND hwnd, TCHAR buf[AT_LEAST 512+40+2*8+4*12+1])
{
TCHAR klass[256]=TEXT(""), title[256]=TEXT("");
RECT rc;
GetWindowRect(hwnd, &rc);
GetClassName(hwnd, klass, ARR_SZ(klass));
GetWindowText(hwnd, title, ARR_SZ(title));
return wsprintf(buf
, TEXT("Hwnd=%x, %s|%s, style=%x, xstyle=%x, rect=%ld,%ld,%ld,%ld")
, (UINT)(UINT_PTR)hwnd
, title, klass
, (UINT)GetWindowLongPtr(hwnd, GWL_STYLE)
, (UINT)GetWindowLongPtr(hwnd, GWL_EXSTYLE)
, rc.left, rc.top, rc.right, rc.bottom
);
}
/* Helper to be able to enable/disable dialog items
* easily while ensuring we move keyboard focus to
* the next control if it was selected */
static BOOL EnableDlgItem(HWND hdlg, UINT id, BOOL enable)
{
HWND hwndControl = GetDlgItem(hdlg, id);
if (!enable && hwndControl == GetFocus()) {
SendMessage(hdlg, WM_NEXTDLGCTL, 0, FALSE);
}
return EnableWindow(hwndControl, enable);
}
static DWORD GetMsgPT(POINT *pt)
{
DWORD point = GetMessagePos();
pt->x = GET_X_LPARAM(point);
pt->y = GET_Y_LPARAM(point);
return point;
}
/* Removes the trailing file name from a path */
static BOOL PathRemoveFileSpecL(TCHAR *p)
{
int i=0;
if (!p) return FALSE;
while(p[++i] != '\0');
while(i > 0 && p[i] != '\\') i--;
p[i]='\0';
return TRUE;
}
/* Removes the path and keeps only the file name */
static void PathStripPathL(TCHAR *p)
{
int i=0, j;
if (!p) return;
while(p[++i] != '\0');
while(i >= 0 && p[i] != '\\') i--;
i++;
for(j=0; p[i+j] != '\0'; j++) p[j]=p[i+j];
p[j]= '\0';
}
static BOOL HaveProc(const char * const DLLname, const char * const PROCname)
{
HINSTANCE hdll = LoadLibraryA(DLLname);
BOOL ret = FALSE;
if (hdll) {
if(GetProcAddress(hdll, PROCname)) {
ret = TRUE ;
}
FreeLibrary(hdll);
}
return ret;
}
static FARPROC LoadDLLProc(const char *DLLname, const char *PROCname)
{
HINSTANCE hdll;
FARPROC ret = (FARPROC)NULL;
if((hdll = GetModuleHandleA(DLLname))) {
return GetProcAddress(hdll, PROCname);
}
hdll = LoadLibraryA(DLLname);
if (hdll) {
ret = GetProcAddress(hdll, PROCname);
if (!ret) FreeLibrary(hdll);
}
return ret;
}
/* Accurate Sleep, needs WINMM.DLL */
static void ASleep(DWORD duration_ms)
{
static MMRESULT (WINAPI *mtimeGetDevCaps)(LPTIMECAPS ptc, UINT cbtc) = (MMRESULT (WINAPI *)(LPTIMECAPS ptc, UINT cbtc))IPTR;
static MMRESULT (WINAPI *mtimeBeginPeriod)(UINT uPeriod);
static MMRESULT (WINAPI *mtimeEndPeriod)(UINT uPeriod);
if (duration_ms > 15) {
/* No need for accurate sleep... */
Sleep(duration_ms);
return;
}
if (mtimeGetDevCaps == (MMRESULT (WINAPI *)(LPTIMECAPS ptc, UINT cbtc))IPTR) {
HINSTANCE h=LoadLibraryA("WINMM.DLL");
if (h) {
mtimeGetDevCaps =(MMRESULT (WINAPI *)(LPTIMECAPS ptc, UINT cbtc))GetProcAddress(h, "timeGetDevCaps");
mtimeBeginPeriod=(MMRESULT (WINAPI *)(UINT uPeriod))GetProcAddress(h, "timeBeginPeriod");
mtimeEndPeriod =(MMRESULT (WINAPI *)(UINT uPeriod))GetProcAddress(h, "timeEndPeriod");
if(!mtimeGetDevCaps || !mtimeBeginPeriod || !mtimeEndPeriod) {
mtimeGetDevCaps=NULL;
FreeLibrary(h);
}
}
}
/* We have winmm functions */
/* This absurd code makes Sleep() more accurate
* - without it, Sleep() is not even +-10ms accurate
* - with it, Sleep is around +-1.5 ms accurate
*/
if(mtimeGetDevCaps) {
TIMECAPS tc;
mtimeGetDevCaps(&tc, sizeof(tc));
mtimeBeginPeriod(tc.wPeriodMin); /* begin accurate sleep */
Sleep(duration_ms); /* perform The SLEEP */
mtimeEndPeriod(tc.wPeriodMin); /* end accurate sleep*/
} else {
Sleep(duration_ms);
}
}
static BOOL FreeDLLByName(const char * const DLLname)
{
HINSTANCE hdll;
if((hdll = GetModuleHandleA(DLLname)))
return FreeLibrary(hdll);
return FALSE;
}
static HWND GetAncestorL(HWND hwnd, UINT gaFlags)
{
typedef HWND (WINAPI *funk_t)(HWND hwnd, UINT gaFlags);
static funk_t funk = (funk_t)IPTR;
HWND hlast, hprevious;
LONG wlong;
if(!hwnd) return NULL;
hprevious = hwnd;
if (funk == (funk_t)IPTR) {
funk = (funk_t)LoadDLLProc("USER32.DLL", "GetAncestor");
}
if(funk) { /* We know we have the function */
return funk(hwnd, gaFlags);
}
/* Fallback */
while ( (hlast = GetParent(hprevious)) != NULL ){
wlong=GetWindowLong(hprevious, GWL_STYLE);
if(wlong&(WS_POPUP)) break;
hprevious=hlast;
}
return hprevious;
}
#ifndef MSGFLTINFO_NONE
#define MSGFLTINFO_NONE 0
#define MSGFLTINFO_ALREADYALLOWED_FORWND 1
#define MSGFLTINFO_ALREADYDISALLOWED_FORWND 2
#define MSGFLTINFO_ALLOWED_HIGHER 3
typedef struct tagCHANGEFILTERSTRUCT {
DWORD cbSize;
DWORD ExtStatus;
} CHANGEFILTERSTRUCT, *PCHANGEFILTERSTRUCT;
#endif
// On Windows Vista we have to use this one that applies process wide.
static BOOL ChangeWindowMessageFilterL(UINT msg, DWORD ac)
{
typedef BOOL (WINAPI* funk_t)(UINT msg, DWORD ac);
static funk_t funk = (funk_t)IPTR;
if (funk == (funk_t)IPTR) {
funk = (funk_t)LoadDLLProc("USER32.DLL", "ChangeWindowMessageFilter");
}
if (funk) { /* We know we have the function */
return funk(msg, ac);
}
return FALSE;
}
// Available only on Windows 7+s
static BOOL ChangeWindowMessageFilterExL(HWND hwnd, UINT msg, DWORD ac, PCHANGEFILTERSTRUCT pC)
{
typedef BOOL (WINAPI *funk_t)(HWND hwnd, UINT msg, DWORD ac, PCHANGEFILTERSTRUCT pC);
static funk_t funk = (funk_t)IPTR;
if (funk == (funk_t)IPTR) {
funk = (funk_t)LoadDLLProc("USER32.DLL", "ChangeWindowMessageFilterEx");
}
if (funk) { /* We know we have the function */
return funk(hwnd, msg, ac, pC);
}
// Process-wide Fallback for Windows Vista!
return ChangeWindowMessageFilterL(msg, ac);
}
static BOOL GetLayeredWindowAttributesL(HWND hwnd, COLORREF *pcrKey, BYTE *pbAlpha, DWORD *pdwFlags)
{
typedef BOOL (WINAPI *funk_t)(HWND hwnd, COLORREF *pcrKey, BYTE *pbAlpha, DWORD *pdwFlags);
static funk_t funk = (funk_t)IPTR;
if (funk == (funk_t)IPTR) {
funk = (funk_t)LoadDLLProc("USER32.DLL", "GetLayeredWindowAttributes");
}
if (funk) { /* We know we have the function */
return funk(hwnd, pcrKey, pbAlpha, pdwFlags);
}
return FALSE;
}
static BOOL SetLayeredWindowAttributesL(HWND hwnd, COLORREF crKey, BYTE bAlpha, DWORD dwFlags)
{
typedef BOOL (WINAPI *funk_t)(HWND hwnd, COLORREF crKey, BYTE bAlpha, DWORD dwFlags);
static funk_t funk = (funk_t)IPTR;
if (funk == (funk_t)IPTR) {
funk= (funk_t)LoadDLLProc("USER32.DLL", "SetLayeredWindowAttributes");
}
if(funk) { /* We know we have the function */
return funk(hwnd, crKey, bAlpha, dwFlags);
}
return FALSE;
}
static BOOL GetMonitorInfoL(HMONITOR hMonitor, LPMONITORINFO lpmi)
{
typedef BOOL (WINAPI *funk_t)(HMONITOR hMonitor, LPMONITORINFO lpmi);
static funk_t funk = (funk_t)IPTR;
if (funk == (funk_t)IPTR) {
#ifdef _UNICODE
funk = (funk_t)LoadDLLProc("USER32.DLL", "GetMonitorInfoW");
#else
funk = (funk_t)LoadDLLProc("USER32.DLL", "GetMonitorInfoA");
#endif
}
if(funk) { /* We know we have the function */
if(hMonitor) return funk(hMonitor, lpmi);
}
/* Fallback for NT4 */
GetClientRect(GetDesktopWindow(), &lpmi->rcMonitor);
SystemParametersInfo(SPI_GETWORKAREA, 0, &lpmi->rcWork, 0);
lpmi->dwFlags = MONITORINFOF_PRIMARY;
return TRUE;
}
static BOOL EnumDisplayMonitorsL(HDC hdc, LPCRECT lprcClip, MONITORENUMPROC lpfnEnum, LPARAM dwData)
{
typedef BOOL (WINAPI *funk_t)(HDC hdc, LPCRECT lprcClip, MONITORENUMPROC lpfnEnum, LPARAM dwData);
static funk_t funk = (funk_t)IPTR;
MONITORINFO mi;
if (funk == (funk_t)IPTR) { /* First time */
funk= (funk_t)LoadDLLProc("USER32.DLL", "EnumDisplayMonitors");
}
if (funk) { /* We know we have the function */
return funk(hdc, lprcClip, lpfnEnum, dwData);
}
/* Fallbak */
GetMonitorInfoL(NULL, &mi);
lpfnEnum(NULL, NULL, &mi.rcMonitor, 0); /* Callback function */
return TRUE;
}
static HMONITOR MonitorFromPointL(POINT pt, DWORD dwFlags)
{
typedef HMONITOR (WINAPI *funk_t)(POINT pt, DWORD dwFlags);
static funk_t funk=(funk_t)IPTR;
if (funk == (funk_t)IPTR) { /* First time */
funk = (funk_t)LoadDLLProc("USER32.DLL", "MonitorFromPoint");
}
if (funk) { /* We know we have the function */
return funk(pt, dwFlags);
}
return NULL;
}
static HMONITOR MonitorFromWindowL(HWND hwnd, DWORD dwFlags)
{
typedef HMONITOR (WINAPI *funk_t)(HWND hwnd, DWORD dwFlags);
static funk_t funk=(funk_t)IPTR;
if (funk == (funk_t)IPTR) { /* First time */
funk = (funk_t)LoadDLLProc("USER32.DLL", "MonitorFromWindow");
}
if (funk) { /* We know we have the function */
return funk(hwnd, dwFlags);
}
return NULL;
}
static BOOL GetGUIThreadInfoL(DWORD pid, GUITHREADINFO *lpgui)
{
typedef BOOL (WINAPI *funk_t)(DWORD pid, GUITHREADINFO *lpgui);
static funk_t funk=(funk_t)IPTR;
if (funk == (funk_t)IPTR) { /* First time */
funk = (funk_t)LoadDLLProc("USER32.DLL", "GetGUIThreadInfo");
}
if (funk) { /* We know we have the function */
return funk(pid, lpgui);
}
return FALSE;
}
static int GetSystemMetricsForDpiL(int nIndex, UINT dpi)
{
typedef int (WINAPI *funk_t)(int nIndex, UINT dpi);
static funk_t funk=(funk_t)IPTR;
if (dpi) {
if (funk == (funk_t)IPTR) { /* First time */
funk = (funk_t)LoadDLLProc("USER32.DLL", "GetSystemMetricsForDpi");
}
if (funk) { /* We know we have the function */
return funk(nIndex, dpi);
}
}
/* Use non dpi stuff if dpi == 0 or if it does not exist. */
return GetSystemMetrics(nIndex);
}
#define GetSystemMetricsForDpi GetSystemMetricsForDpiL
static HRESULT GetDpiForMonitorL(HMONITOR hmonitor, int dpiType, UINT *dpiX, UINT *dpiY)
{
typedef HRESULT (WINAPI *funk_t)(HMONITOR hmonitor, int dpiType, UINT *dpiX, UINT *dpiY);
static funk_t funk=(funk_t)IPTR;
if (funk == (funk_t)IPTR) { /* First time */
funk = (funk_t)LoadDLLProc("SHCORE.DLL", "GetDpiForMonitor");
}
if (funk) { /* We know we have the function */
return funk(hmonitor, dpiType, dpiX, dpiY);
}
return 666; /* Fail with 666 error */
}
/* Supported wince Windows 10, version 1607 [desktop apps only] */
static UINT GetDpiForWindowL(const HWND hwnd)
{
typedef UINT (WINAPI *funk_t)(const HWND hwnd);
static funk_t funk=(funk_t)IPTR;
if (funk == (funk_t)IPTR) { /* First time */
funk = (funk_t)LoadDLLProc("USER32.DLL", "GetDpiForWindow");
}
if (funk) { /* We know we have the function */
return funk(hwnd);
}
/* Windows 8.1 / Server2012 R2 Fallback */
UINT dpiX=0;
UINT dpiY=0;
HMONITOR hmon;
if ((hmon = MonitorFromWindowL(hwnd, MONITOR_DEFAULTTONEAREST))
&& S_OK == GetDpiForMonitorL(hmon, MDT_DEFAULT, &dpiX, &dpiY)) {
return dpiX;
}
return 0; /* Not handled */
}
#define GetDpiForWindow GetDpiForWindowL
static UINT ReallyGetDpiForWindow(const HWND hwnd)
{
UINT dpi = GetDpiForWindowL(hwnd);
if (!dpi) {
HDC hdc = GetDC(hwnd);
if(hdc) {
dpi = (UINT)GetDeviceCaps(hdc, LOGPIXELSY);
ReleaseDC(hwnd, hdc);
if (!dpi) dpi = 96; /* Default to 96 dpi*/
} else {
dpi = 96; /* cannot et a DC, default to 96 dpi */
}
}
return dpi;
}
/* https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-enablenonclientdpiscaling
* Available since Windows 10.0.14342 (~1607) https://stackoverflow.com/questions/36864894
* Useless since Windows 10.0.15063 (1703)
* So it is only useful in builds frim 1607 to 1703
* To be called in the WM_NCCREATE message handler.
*/
static BOOL EnableNonClientDpiScalingL(HWND hwnd)
{
/* For Windows 10 below build 15063 */
typedef BOOL (WINAPI *funk_t)(HWND hwnd);
static funk_t funk=(funk_t)IPTR;
if (funk == (funk_t)IPTR) { /* First time */
funk = (funk_t)LoadDLLProc("USER32.DLL", "EnableNonClientDpiScaling");
}
if (funk) { /* We know we have the function */
return funk(hwnd);
}
return FALSE;
}
/* Only applies to Windows NT for build number */
static xpure BOOL OredredWinVer()
{
DWORD oVer;
DWORD ver = GetVersion();
oVer = (ver&0x000000FF) << 24 /* MAJOR */
| (ver&0x0000FF00) << 8 /* MINOR */
| (ver&0xFFFF0000) >> 16;/* BUILDID */
/* On Windows 9x, no buildID is available in GetVer */
if (ver & 0x80000000) {
// Only use minor/major ver.
oVer |= 0xFFFF0000;
}
return oVer;
}
static BOOL IsDarkModeEnabled(void)
{
DWORD value = 0;
if ( OredredWinVer() >= 0x0A004563 ) {
/* In case of Windows 10 build 10.0.17763 or 10.x (future) or 11+ */
DWORD len=sizeof(DWORD);
HKEY key;
if (RegOpenKeyEx(HKEY_CURRENT_USER
, TEXT("Software\\Microsoft\\Windows\\CurrentVersion\\Themes\\Personalize")
, 0, KEY_QUERY_VALUE, &key) == ERROR_SUCCESS)
{
if (RegQueryValueEx(key, TEXT("AppsUseLightTheme"), NULL, NULL, (LPBYTE)&value, &len) == ERROR_SUCCESS) {
value = !value;
}
RegCloseKey(key);
}
}
return value;
}
static BOOL IsHighContrastEnabled()
{
HIGHCONTRAST hc = { sizeof(hc) };
if (SystemParametersInfo(SPI_GETHIGHCONTRAST, sizeof(hc), &hc, FALSE))
return hc.dwFlags & HCF_HIGHCONTRASTON;
return FALSE;
}
/* We can use the DWMWA_USE_IMMERSIVE_DARK_MODE=20 DWM style
* It is documented for Win11 build 22000 but it also appears to work for Win10
* However from build 1809 to 2004 it the value was =19 and it is =20
* Since Windows 10 build 20H1 and on Win11
* DWMWA_USE_IMMERSIVE_DARK_MODE=19 up to Win10 2004
* DWMWA_USE_IMMERSIVE_DARK_MODE=20 since Win10 20H1 */
static HRESULT DwmSetWindowAttributeL(HWND hwnd, DWORD a, PVOID b, DWORD c);
static BOOL AllowDarkTitlebar(HWND hwnd)
{
if( IsHighContrastEnabled() )
return FALSE; /* Nothing to do and ignore DarkMode */
BOOL DarkMode = IsDarkModeEnabled();
if ( OredredWinVer() >= 0x0A004A29 ) {
/* Windows 10 build 10.0.18985 ie 20H1 */
DwmSetWindowAttributeL(hwnd, DWMWA_USE_IMMERSIVE_DARK_MODE, &DarkMode, sizeof(DarkMode));
} else if ( OredredWinVer() >= 0x0A004563) {
/* Windows 10 build 10.0.17763 ie: 1809 or later */
if ( OredredWinVer() < 0x0A0047BA) {
/* Windows 10 build 10.0.18362 ie: before 1903 */
SetProp(hwnd, TEXT("UseImmersiveDarkModeColors"), (HANDLE)(UINT_PTR)DarkMode);
}
DwmSetWindowAttributeL(hwnd, DWMWA_USE_IMMERSIVE_DARK_MODE_PRE20H1, &DarkMode, sizeof(DarkMode));
}
/* We must return the actual state of the Dark mode */
return DarkMode;
}
/* Helper function */
static int GetSystemMetricsForWin(int nIndex, HWND hwnd)
{
return GetSystemMetricsForDpiL(nIndex, GetDpiForWindowL(hwnd));
}
static BOOL SystemParametersInfoForDpiL(UINT uiAction, UINT uiParam, PVOID pvParam, UINT fWinIni, UINT dpi)
{
typedef BOOL (WINAPI *funk_t)(UINT uiAction, UINT uiParam, PVOID pvParam, UINT fWinIni, UINT dpi);
static funk_t funk=(funk_t)IPTR;
if (dpi) {
if (funk == (funk_t)IPTR) { /* First time */
funk = (funk_t)LoadDLLProc("USER32.DLL", "SystemParametersInfoForDpi");
}
if (funk) { /* We know we have the function */
return funk(uiAction, uiParam, pvParam, fWinIni, dpi);
}
}
/* Not handeled */
return SystemParametersInfo(uiAction, uiParam, pvParam, fWinIni);
}
#define SystemParametersInfoForDpi SystemParametersInfoForDpiL
static HWINEVENTHOOK SetWinEventHookL(
DWORD eventMin, DWORD eventMax
, HMODULE hmodWinEventProc
, WINEVENTPROC pfnWinEventProc
, DWORD idProcess, DWORD idThread, DWORD dwFlags)
{
typedef HWINEVENTHOOK (WINAPI *funk_t)(DWORD evm, DWORD evM, HMODULE hmod, WINEVENTPROC wevp, DWORD idProcess, DWORD idThread, DWORD dwFlags);
static funk_t funk=(funk_t)IPTR;
if (funk == (funk_t)IPTR) { /* First time */
funk = (funk_t)LoadDLLProc("USER32.DLL", "SetWinEventHook");
}
if (funk) { /* We know we have the function */
return funk(eventMin, eventMax, hmodWinEventProc
, pfnWinEventProc, idProcess, idThread, dwFlags);
}
/* Failed */
return NULL;
}
static BOOL UnhookWinEventL(HWINEVENTHOOK hWinEventHook)
{
typedef BOOL (WINAPI *funk_t)(HWINEVENTHOOK hWinEventHook);
static funk_t funk=(funk_t)IPTR;
if (funk == (funk_t)IPTR) { /* First time */
funk = (funk_t)LoadDLLProc("USER32.DLL", "UnhookWinEvent");
}
if (funk) { /* We know we have the function */
return funk(hWinEventHook);
}
/* Failed */
return FALSE;
}
#ifndef WIN64
static void NotifyWinEventL(DWORD event, HWND hwnd, LONG idObj, LONG idChild)
{
typedef void (WINAPI *funk_t)(DWORD, HWND, LONG, LONG);
static funk_t funk = (funk_t)1;
if (funk == (funk_t)1)
funk = (funk_t)LoadDLLProc("USER32.DLL", "NotifyWinEvent");
if (funk)
funk(event, hwnd, idObj, idChild);
}
#define NotifyWinEvent NotifyWinEventL
#endif
static HRESULT DwmGetWindowAttributeL(HWND hwnd, DWORD a, PVOID b, DWORD c)
{
typedef HRESULT (WINAPI *funk_t)(HWND hwnd, DWORD a, PVOID b, DWORD c);
static funk_t funk=(funk_t)IPTR;
if (funk == (funk_t)IPTR) { /* First time */
funk = (funk_t)LoadDLLProc("DWMAPI.DLL", "DwmGetWindowAttribute");
}
if (funk) { /* We know we have the function */
return funk(hwnd, a, b, c);
}
/* DwmGetWindowAttribute return 0 on sucess ! */
return 666; /* Here we FAIL with 666 error */
}
static HRESULT DwmSetWindowAttributeL(HWND hwnd, DWORD a, PVOID b, DWORD c)
{
typedef HRESULT (WINAPI *funk_t)(HWND hwnd, DWORD a, PVOID b, DWORD c);
static funk_t funk=(funk_t)IPTR;
if (funk == (funk_t)IPTR) { /* First time */
funk = (funk_t)LoadDLLProc("DWMAPI.DLL", "DwmSetWindowAttribute");
}
if (funk) { /* We know we have the function */
return funk(hwnd, a, b, c);
}
/* myDwmSetWindowAttribute return 0 on sucess ! */
return 666; /* Here we FAIL with 666 error */
}
static HRESULT DwmGetColorizationColorL(DWORD *a, BOOL *b)
{
typedef HRESULT (WINAPI *funk_t)(DWORD *a, BOOL *b);
static funk_t funk=(funk_t)IPTR;
if (funk == (funk_t)IPTR) { /* First time */
funk = (funk_t)LoadDLLProc("DWMAPI.DLL", "DwmGetColorizationColor");
}
if (funk) { /* We know we have the function */
return funk(a, b);
}
/* return 0 on sucess ! */
return 666; /* Here we FAIL with 666 error */
}
static COLORREF GetSysColorizationColor()
{
DWORD color=0;
BOOL b=FALSE;
if(S_OK == DwmGetColorizationColorL(&color, &b)) {
/* Re orde- bytes because
* COLORREF: 0x00BBGGRR and not 0xAARRGGBB */
return (color&0x000000FF) << 16 /* blue */
| (color&0x0000FF00) /* green */
| (color&0x00FF0000) >> 16; /* red */
}
return 0;
}
static long xpure average(long a, long b)
{
return (a>>1) + (b>>1) + ( ((a&1) + (b&1))>>1 );
}
static long xpure averageX(const RECT *rc)
{
return average(rc->left, rc->right);
}
static long xpure averageY(const RECT *rc)
{
return average(rc->top, rc->bottom);
}
/* #define DwmGetWindowAttribute DwmGetWindowAttributeL */
static void SubRect(RECT *__restrict__ frame, const RECT *rect)
{
frame->left -= rect->left;
frame->top -= rect->top;
frame->right = rect->right - frame->right;
frame->bottom = rect->bottom - frame->bottom;
}
static void InflateRectBorder(RECT *__restrict__ rc, const RECT *bd)
{
rc->left -= bd->left;
rc->top -= bd->top;
rc->right += bd->right;
rc->bottom += bd->bottom;
}
static void DeflateRectBorder(RECT *__restrict__ rc, const RECT *bd)
{
rc->left += bd->left;
rc->top += bd->top;
rc->right -= bd->right;
rc->bottom -= bd->bottom;
}
static void OffsetPoints(POINT *pts, long dx, long dy, unsigned count)
{
while(count--) {
pts->x += dx;
pts->y += dy;
pts++;
}
}
static void FixDWMRectLL(HWND hwnd, RECT *bbb, const int SnapGap)
{
RECT rect, frame;
if(S_OK == DwmGetWindowAttributeL(hwnd, DWMWA_EXTENDED_FRAME_BOUNDS, &frame, sizeof(RECT))
&& GetWindowRect(hwnd, &rect)){
SubRect(&frame, &rect);
CopyRect(bbb, &frame);
} else {
SetRectEmpty(bbb);
/*SetRect(bbb, 10, 10, 10, 10);*/
}
if (SnapGap) OffsetRect(bbb, -SnapGap, -SnapGap);
// if (IsZoomed(hwnd)) OffsetRect(bbb, 10, 10); // Test for Zoomed stuff
}
/* This function is here because under Windows 10, the GetWindowRect function
* includes invisible borders, if those borders were visible it would make
* sense, this is the case on Windows 7 and 8.x for example
* We use DWM api when available in order to get the REAL client area
*/
static BOOL GetWindowRectLL(HWND hwnd, RECT *rect, const int SnapGap)
{
HRESULT ret = DwmGetWindowAttributeL(hwnd, DWMWA_EXTENDED_FRAME_BOUNDS, rect, sizeof(RECT));
if( ret == S_OK) {
ret = TRUE;
} else {
ret = GetWindowRect(hwnd, rect); /* Fallback to normal */