capFileAlloc
The capFileAlloc
macro creates (preallocates) a capture file of a specified size. You can use
this macro or explicitly send the WM_CAP_FILE_ALLOCATE message.
BOOL capFileAlloc(
|
hwnd, |
|
|
dwSize |
|
|
); |
|
Parameters
hwnd
Handle of a
capture window.
dwSize
Size, in
bytes, to create the capture file.
Return Values
Returns TRUE
if successful or FALSE otherwise.
If an error
occurs and an error callback function is set using the capSetCallbackOnError macro, the error callback
function is called.
Remarks
You can
improve streaming capture performance significantly by preallocating a capture
file large enough to store an entire video clip and by defragmenting the
capture file before capturing the clip.
See Also