Re: [PATCH 2/2] comctl32/propsheet: Make the PROPSHEET_RemovePage function similar to PROPSHEET_CleanUp

[Nikolay Sivov]

On 09.03.2017 23:20, Hermès BÉLUSCA-MAÏTO wrote:
> [PATCH 2/2] comctl32/propsheet: Make the PROPSHEET_RemovePage function
> similar to PROPSHEET_CleanUp:
>
> - Use an auxiliary psp pointer to hold the psInfo->proppage[index].hpage;
>
> - Check psInfo->proppage[index].hwndPage before destroying the
> associated window.

> /* Destroy page dialog window */
> -  DestroyWindow(psInfo->proppage[index].hwndPage);
> +  if(psInfo->proppage[index].hwndPage)
> +     DestroyWindow(psInfo->proppage[index].hwndPage);

Why is this important?