IG_mult_current_frame_is

This function lets you tell whether or not the current frame is valid.

Declaration:

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AT_ERRCOUNT ACCUAPI IG_mult_current_frame_is_valid( HIGMULT hMult, LPAT_BOOL lpbValid );

Arguments:

Name	Type	Description
hMult	HIGMULT	Multimedia instance handle.
lpbValid	LPAT_BOOL	Boolean that is set to TRUE if the current frame is valid.

Return Value:

Returns the number of ImageGear errors that occurred during this function call. If there are no errors, the return value is IGE_SUCCESS.

Supported Raster Image Formats:

This function does not process image pixels.

Sample:

Media Player

Example:

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AT_ERRCOUNT nErrcount; /* Number of errors on stack / HIGMULT hMult; / Multimedia instance handle / HIGEAR hIGear; / HIGEAR handle of image / AT_BOOL bValid; / Is current frame valid? */ while (IG_mult_current_frame_is_valid(hMult, &bValid) == IGE_SUCCESS && bValid) { nErrcount = IG_mult_current_frame_image_get(hMult, &hIGear); nErrcount = IG_mult_current_frame_advance(hMult); }

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AT_ERRCOUNT nErrcount;  /* Number of errors on stack */
HIGMULT hMult;          /* Multimedia instance handle */
HIGEAR hIGear;          /* HIGEAR handle of image */
AT_BOOL bValid;         /* Is current frame valid? */
while (IG_mult_current_frame_is_valid(hMult, &bValid) == IGE_SUCCESS && bValid)
{
        nErrcount = IG_mult_current_frame_image_get(hMult, &hIGear);
        nErrcount = IG_mult_current_frame_advance(hMult);
}

Remarks:

You can use this function in a loop over all of the frames to determine when you have advanced beyond the last available frame.