QPix Command Reference
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QPx_SetImporterFrameIndex(importerRef; frameIndex):error | |||
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importerRef | Longint | Graphics importer reference |
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frameIndex | Longint | Frame index |
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error | Longint | Error result |
Changes the current frame index in the case of multi-frame images.
When working with multi-frame images all graphic importer commands apply to the "current frame". The current frame is identified by its index. The frame index ranges from 1 to the total number of frames in the image. The default frame index is 1.
The graphics importer instance is specified by importerRef. If importerRef is not a reference to a valid graphics importer instance, error qpx_paramErr is returned.
Parameter frameIndex specifies the frame index.
Note: A frame index value of zero (0) is usually equivalent to one (1), unless some importers treat the zero value in a special way.
Related commands
QPx_GetImporterFrameIndex | Returns the current frame of a multi-image container |
QPx_CountImporterFrames | Returns the number of images in a multi-image container |