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 67:
67. effBeginSetProgram
>= VST2.1
@see AudioEffectX::beginSetProgram()
host calls this before a new program (effSetProgram) is loaded
x[return]: 1 = successful
C++ method:
bool AudioEffectX::beginSetProgram()
Delphi method:
function AudioEffectX.beginSetProgram: boolean;