#include "ltmm.h"
C Syntax |
HRESULT IltmmPlay_SaveStillBitmap(pPlay, filename, format, quality, flags, timeout) |
C++ Syntax |
HRESULT SaveStillBitmap(filename, format, quality, flags, timeout) |
IltmmPlay *pPlay; |
pointer to an interface |
BSTR filename; |
file name |
long format; |
format |
long quality; |
compression quality |
long flags; |
flags |
long timeout; |
timeout |
Saves a snapshot from the running stream to a file, as a bitmap.
Parameter |
Description |
pPlay |
Pointer to an IltmmPlay interface. |
filename |
Character string containing the name of the file in which to save the bitmap. |
format |
Value that represents the output file format. For a list of possible values, refer to ltmmPlay_StillFormat Constants. |
quality |
Value that represents the compression quality. This is used only when the Format parameter is ltmmPlay_StillFormat_CMP. For a list of possible values, refer to Compression Quality Factors. |
flags |
Not used. Pass 0. |
timeout |
The timeout period in milliseconds. The function will fail if it was not able to take a sample in the specified time. Use 1 to wait indefinitely until a sample is snapped. |
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. |
This method blocks (does not return) until the timeout occurs or the sample is snapped.
The following functions can also be used to obtain still images:
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. |
Win32, x64
Elements: |
IltmmPlay::GetStillDIB, IltmmPlay::GetStillPicture, IltmmPlay::SaveStillDIB |
Topics: |
For a C example, refer to IltmmPlay::SaveStillBitmap Example for C.
For a C++ example, refer to IltmmPlay::SaveStillBitmap Example for C++.
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