ref_iface_IVDXFilterPreview_SetButtonCallback - shekh/VirtualDub2 GitHub Wiki

VirtualDub Plugin SDK 1.2

IVDXFilterPreview interface

IVDXFilterPreview:: SetButtonCallback

Sets the callback issued when the preview window is opened or closed.

void SetButtonCallback(VDXFilterPreviewButtonCallback cb, void *cbdata);

cb	Callback function to call when preview window open state changes.
cbdata	Abstract data to be passed to callback function.

This method is not thread-safe.

Errors may not be returned from this function (see SetError()).