comctl32[2/2]: toolbar: fix the layout of TBUTTON_INFO on Win64

[Mikołaj Zalewski]

Dmitry Timoshkov wrote:

> "Mikolaj Zalewski" <mikolaj at zalewski.pl> wrote:
>
>> +/* Note: TOOLBAR_DumpButton assumes the layout of the beginning of 
>> the structure
>> + * is the same as of TBBUTTON */
>> typedef struct
>> {
>>     INT iBitmap;
>> @@ -96,6 +98,9 @@ typedef struct
>>     BYTE  fsStyle;
>>     BYTE  bHot;
>>     BYTE  bDropDownPressed;
>> +#ifdef _WIN64
>> +    BYTE bReserved64[4];
>> +#endif
>>     DWORD_PTR dwData;
>>     INT_PTR iString;
>>     INT nRow;
>
>
> Then probably it would make sense to make TBBUTTON the first member of 
> the above
> structure. That would help in avoiding possible layout problems in 
> future.
>
  The bHot and bDropDownPressed would then be called bReserved[0] and 
bReserved[1] so this could make more harm than good.

Mikolaj