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IltmmCapture::GetStillDIB

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.

The frame is captured from the position indicated by the StillTap property.

When capturing from the still pin, the capture happens when the user presses the hardware button for capturing the still image.
If there is not a hardware button or the user doesn't press it, the capture occurs after the timeout specified by the TimeOut parameter.

When not capturing from the still pin, the capture occurs after the amount of time specified by the TimeOut parameter.

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

 

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, IltmmCapture::put_StillTap, IltmmCapture::get_StillTap
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++.