ICaptureGraphBuilder::AllocCapFile

Microsoft DirectShow 9.0

ICaptureGraphBuilder::AllocCapFile

• Note   The ICaptureGraphBuilder interface is deprecated. Use ICaptureGraphBuilder2 instead.

Preallocates a capture file to a specified size.

Syntax

  HRESULT AllocCapFile(
    LPCOLESTR lpwstr,
    DWORDLONG dwlSize
);

Parameters

lpwstr

[in] Pointer to a wide-character string containing the name of the file to create or resize.

dwSize

[in] Size, in bytes, of the file to be allocated.

Return Value

Returns an HRESULT value.

Remarks

The call will fail if the file is read-only. For best capture results, always capture to a defragmented, preallocated capture file that is larger than the size of the capture data.

Requirements

Reference: Dshow.h.

Library: Quartz.dll.

See Also

• Error and Success Codes
• ICaptureGraphBuilder Interface