Add Windows 10 taskbar clock seconds mod

[halfofknowledge-cpu]

No description provided.

[halfofknowledge-cpu]

First contribution ;P
Waiting for a review, TY

[Anixx]

Windhawk mods shold not make permanent changes to the registry settings. Your mod changes a registry value.

[Anixx]

You can take this mod as an example of how to hook registry query for such mods:
https://windhawk.net/mods/legacy-alt-tab

Changing the key name from AltTabSettings to ShowSecondsInSystemClock has the reqired effect:

// ==WindhawkMod==
// @id           seconds-in-clock
// @name         Show seconds in clock on Win10 taskbar
// @description  Show seconds in clock on Win10 taskbar
// @version      1.0.0
// @include      explorer.exe
// ==/WindhawkMod==

// ==WindhawkModReadme==
/*...*/
// ==/WindhawkModReadme==

#include <windows.h>

typedef LONG (WINAPI *REGQUERYVALUEEXW)(HKEY hKey, LPCWSTR lpValueName, LPDWORD lpReserved, LPDWORD lpType, LPBYTE lpData, LPDWORD lpcbData);

REGQUERYVALUEEXW pOriginalRegQueryValueExW;

LONG WINAPI RegQueryValueExWHook(HKEY hKey, LPCWSTR lpValueName, LPDWORD lpReserved, LPDWORD lpType, LPBYTE lpData, LPDWORD lpcbData)
{   

    if (lstrcmpiW(lpValueName, L"ShowSecondsInSystemClock") == 0)
        
    { 
            if (lpType)
                *lpType = REG_DWORD;
            if (lpData && lpcbData && *lpcbData >= sizeof(DWORD))
            {
                *(DWORD*)lpData = 1;
                *lpcbData = sizeof(DWORD);
            }
            return ERROR_SUCCESS;
    }

    return pOriginalRegQueryValueExW(hKey, lpValueName, lpReserved, lpType, lpData, lpcbData);
}

BOOL Wh_ModInit(void)
{
    Wh_Log(L"Init");

    Wh_SetFunctionHook((void*)GetProcAddress(LoadLibrary(L"kernelbase.dll"), "RegQueryValueExW"), (void*)RegQueryValueExWHook, (void**)&pOriginalRegQueryValueExW);

    return TRUE;
}

[halfofknowledge-cpu]

I don't understand anixx

[Anixx]

Your mod makes changes to the registry. Windhawk mods should not do so.

[halfofknowledge-cpu]

So what do I do

[Anixx]

Above is the link to the mod that you can use for your mod. You only change AltTabSettings to ShowSecondsInSystemClock and it adds seconds to system clock.