This function creates a multimedia instance from memory.
Copy Code
|
|
---|---|
AT_ERRCOUNT ACCUAPI IG_mult_open_mem( LPAT_VOID lpMem, AT_UINT memLen, LPHIGMULT lphMult ); |
Name | Type | Description |
---|---|---|
lpMem | LPAT_VOID | Pointer to data in memory to open. |
memLen | AT_UINT | Length of data in memory in bytes. |
lphMult | LPHIGMULT | Handle to multimedia instance. |
Returns the number of ImageGear errors that occurred during this function call. If there are no errors, the return value is IGE_SUCCESS.
This function does not process image pixels.
None
Copy Code
|
|
---|---|
/* Get a multimedia file's duration using a memory buffer */ AT_ERRCOUNT nErrcount; /* Number of errors on stack */ HIGMULT hMult; /* Multimedia instance handle */ LPAT_VOID lpMem; /* Memory buffer with multimedia data */ AT_UINT memLen; /* Length of data in memory buffer */ AT_UINT numFrames; /* Total number of frames in file */ AT_UINT duration; /* Duration of file in milliseconds */ nErrcount = IG_mult_open_mem(lpMem, memLen, &hMult); nErrcount = IG_mult_duration_get(hMult, &numFrames, &duration); nErrcount = IG_mult_close(hMult); |
The memory must contain a complete multimedia file and remain accessible until the multimedia instance is closed.