IltmmCapture::GetStillDIB

#include "ltmm.h"

C Syntax

HRESULT IltmmCapture__getStillDIB(pCapture, TimeOut, phDIB)

C++ Syntax

HRESULT GetStillDIB(TimeOut, phDIB)

 

IltmmCapture *pCapture;

/* pointer to an interface */

long TimeOut;

/* time out period */

long *phDIB;

/* DIB handle */

Retrieves a device independent bitmap during a ltmmCapture_Mode_Still capture.

Parameter

Description

pCapture

Pointer to an IltmmCapture interface.

TimeOut

Value containing the maximum time, in milliseconds, to wait for the image.

phDIB

Pointer to a variable that receives the DIB handle.

Returns

S_OK

The function was successful.

<> S_OK

An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation.

Comments

If the method succeeds, the caller must free the returned HDIB by calling the GlobalFree function.

If TimeOut is INFINITE, the function's time-out interval never elapses.

 

Note: The frame data is retrieved from the underlying graph after the processing

 filters. If the capture needs to occur before the processing is completed

 use the LeadVideoCallBackFilter and place it first in the collection of

 processing filters.

Required DLLs and Libraries

LTMM

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64

See Also

Elements:

IltmmCapture::ReadyCapture, IltmmCapture::StartCapture

Topics:

Multimedia Function Group

Example

For a C example, refer to Advanced Capture Application for C.

For a C++ example, refer to Advanced Capture Application for C++.