Cancels the conversion operation.

The callback function MMdaImageUtilObserver::MiuoConvertComplete() is not called.

Closes the open file-based or descriptor-based image.

Any conversion operation in progress is cancelled.

Begins the image conversion operation for the specified frame overloaded function.

The operation is asynchronous. When the conversion operation is complete, successfully or otherwise, the callback function MMdaImageUtilObserver::MiuoConvertComplete() is called.When converting from a file or descriptor to a bitmap, the operation can complete with KErrUnderflow, if there is insufficient information in the file or descriptor. Typically, this occurs when using the file or descriptor as a cache. In this situation, the conversion operation should be performed repeatedly until the file or descriptor has accumulated enough information for the operation to complete with KErrNone. As much of the image as is present is converted and written to the target bitmap at each call to this function.

Begins the image conversion operation for the specified frame overloaded function.

The operation is asynchronous. When the conversion operation is complete, successfully or otherwise, the callback function MMdaImageUtilObserver::MiuoConvertComplete() is called.When converting from a file or descriptor to a bitmap, the operation can complete with KErrUnderflow, if there is insufficient information in the file or descriptor. Typically, this occurs when using the file or descriptor as a cache. In this situation, the conversion operation should be performed repeatedly until the file or descriptor has accumulated enough information for the operation to complete with KErrNone. As much of the image as is present is converted and written to the target bitmap at each call to this function.

CMdaImageUtility::ConvertL ( CFbsBitmap & aBitmap, TInt aFrameNumber = 0)

Returns the number of frames in the image, counting from the first frame in the image, to the next frame to be decoded.

Note: The image conversion utilities do not scan all the image data on calling OpenL(), just the header. Therefore, if, as in the case of an animated gif, there is no frame count in the header, then until all the frames in the image have been decoded, the total frame count is unknown. Initially therefore, FrameCount() returns 1, but this increments as each frame is decoded, and the utility reads the next frame's header. Once the last frame has been decoded, all frames are available for access as the information about each frame is stored.

Retrieves information about the specified frame.

This function should only be called after an existing image has been successfully opened or a new image successfully created.