IG_ARTX_mark_user_data

IG_ARTX_mark_user_data_set

In This Topic

This function sets the user data associated with mark.

Declaration:

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AT_ERRCOUNT IG_ARTX_mark_user_data_set( HIG_ARTX_MARK hMark, LPAT_VOID lpData );

Arguments:

Name	Type	Description
hMark	HIG_ARTX_MARK	Annotation handle.
lpData	LPAT_VOID	User data pointer.

Return Value:

Error count.

Supported Raster Image Formats:

This function does not process image pixels.

Sample:

None

Example:

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HIG_ARTX_PAGE hArtPage = NULL; //ArtX page handle HIG_ARTX_MARK hNewMark, hNewMarkRet = NULL; //Annotation handles AT_RECTANGLE rcRectangle = {10, 10, 100, 60};//annotation boundary AT_RGBQUAD rgb = {0xff, 0, 0xff, 0}; //annotation color AT_CHAR szUserDataText[] = "Annotation sample Userdata"; //user data to be associated with annotation //Create new ArtX page IG_ARTX_page_create(&hArtPage); //Create new Ellipse annotation IG_ARTX_filled_ellipse_create(&rcRectangle, &rgb, FALSE, &hNewMark); //Add new annotation into ArtX page IG_ARTX_page_mark_add(hArtPage, hNewMark, IG_ARTX_COORD_IMAGE, &hNewMarkRet); //Set annotation's user data attribute IG_ARTX_mark_user_data_set(hNewMarkRet, szUserDataText); //save annotation data to file IG_ARTX_page_save_file(hArtPage, "ArtXSampleData.xml", 1, TRUE, IG_ARTX_SAVE_XML);

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HIG_ARTX_PAGE    hArtPage = NULL;                //ArtX page handle
HIG_ARTX_MARK    hNewMark, hNewMarkRet = NULL;    //Annotation handles
AT_RECTANGLE    rcRectangle = {10, 10, 100, 60};//annotation boundary
AT_RGBQUAD        rgb = {0xff, 0, 0xff, 0};        //annotation color

AT_CHAR szUserDataText[] = "Annotation sample Userdata"; //user data to be associated with annotation

//Create new ArtX page
IG_ARTX_page_create(&hArtPage);

//Create new Ellipse annotation
IG_ARTX_filled_ellipse_create(&rcRectangle, &rgb, FALSE, &hNewMark);

//Add new annotation into ArtX page
IG_ARTX_page_mark_add(hArtPage, hNewMark, IG_ARTX_COORD_IMAGE, &hNewMarkRet);

//Set annotation's user data attribute
IG_ARTX_mark_user_data_set(hNewMarkRet, szUserDataText);

//save annotation data to file
IG_ARTX_page_save_file(hArtPage, "ArtXSampleData.xml", 1, TRUE, IG_ARTX_SAVE_XML);

Remarks:

This function stores a copy of a zero-terminated character string, passed via lpData parameter, in annotation’s internal data structure.

Use IG_ARTX_mark_user_data_get() to retrieve the user data.

These functions only work with zero-terminated character strings and not with arbitrary pointers. When ArtX marks are saved to a file, user data is saved as well.

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