C++:
VstIntPtr function dispatcher(AEffect* e, VstInt32 opcode, VstInt32 index, VstIntPtr value,
void* ptr, float opt);
Delphi:
function dispatcher(e: PAEffect; opcode, index: VstInt32; value: VstIntPtr; ptr: pointer;
opt: Single): VstIntPtr; cdecl;
always returns 0, unless otherwise defined.
all string-pointers points to zero terminated strings.
e[ ]: = plugin receives as entry parameter
x[ ]: = plugin returns to host
dispatcher() function using opcode 7:
7. effGetParamDisplay
>= VST1.0
@see AudioEffect::getParameterDisplay()
host requests parameter textual representation
e[index]: parameter index
x[ptr]: returns string-pointer to parameter textual representation (max 8 bytes), examples:
0.5, -3, PLATE
C++ method:
void AudioEffect::getParameterDisplay(VstInt32 index, char* text)
Delphi method:
procedure AudioEffectX.getParamDisplay(index: VstInt32; text: pchar);
warning:
Please be aware that the string lengths supported by the default VST interface are normally limited to
8 characters (max 7 chars plus null terminating character). If you copy too much data into the buffers
provided, you may break certain Host applications.
