How to add winmm.dll driver from within msacm32.dll?

[Alex Villací­s Lasso]

a_villacis at palosanto.com wrote:

>I tried the following change in acmDriverAddA() at
>dlls/msacm/driver.c:
>
>    if (!hinstModule) {
>        return MMSYSERR_INVALHANDLE;
>    } else {
>#define WINE_DI_MAGIC   0x900F1B01
>        unsigned int * d = (unsigned int *)hinstModule;
>        if (HeapValidate(GetProcessHeap(), 0, d) && *d ==
>WINE_DI_MAGIC) {
>            *phadid = (HACMDRIVERID) MSACM_RegisterDriver(NULL,
>NULL, hinstModule);
>        } else {
>            return MMSYSERR_INVALHANDLE;
>        }
>    }
>  
>
I saw a mail in wine-devel mentioning the approach of abandoning the 
dependency on DriverSendMessage(). I will try to implement it. 
Meanwhile, this patch prevents the game from crashing, although it does 
not add any functionality. However, it will try to report the 
unsupported configuration as a guide for later implementation.

Alex Villacís Lasso

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