The example shows how to access the mosaic filter that was inserted as the first filter to the play object in the Programmatically Inserting a Processor Filter tutorial.
C Source
IUnknown *pUnk;
IltmmPlay_GetSubObject(pPlay, ltmmPlay_Object_SelVideoProcessor, &pUnk);
C++ Source
IUnknown *pUnk;
pPlay->GetSubObject(ltmmPlay_Object_SelVideoProcessor, &pUnk);
C Source
ILMVMosaic *pVMF;
IUnknown_QueryInterface(pUnk, &IID_ILMVMosaic, (void**) &pVMF);
IUnknown_Release(pUnk);
C++ Source
ILMVMosaic *pVMF;
pUnk->QueryInterface(&IID_ILMVMosaic, (void**) &pVMF);
pUnk->Release();
C Source
CROP_ATTRIBUTES CropAttrib;
CropAttrib.lLeft = 0;
CropAttrib.lTop = 0;
CropAttrib.lRight = 0;
CropAttrib.lBottom = 0;
CropAttrib.bEnabled = TRUE;
ILMVMosaic_SetCropAttributes(pVMF, CropAttrib);
IUnknown_Release(pVMF);
C++ Source
CROP_ATTRIBUTES CropAttrib;
CropAttrib.lLeft = 0;
CropAttrib.lTop = 0;
CropAttrib.lRight = 0;
CropAttrib.lBottom = 0;
CropAttrib.bEnabled = TRUE;
pVMF->SetCropAttributes(CropAttrib);
pVMF->Release();
C Source
IUnknown_Release(pPlay);
C++ Source
pPlay->Release();
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