SHIFTDIFFERENCEFILTERDLGPARAMS

Show in webframe

typedef struct _SHIFTDIFFERENCEFILTERDLGPARAMS
{
   L_UINT uStructSize;
   pBITMAPHANDLE pBitmap;
   L_BOOL bZoomToFit;
   pSPATIALFLT pFilter;
   L_UINT32 uDlgFlags;
   LTCOMMDLGHELPCB pfnHelpCallback;
   L_VOID  *pHelpCallBackUserData;
} SHIFTDIFFERENCEFILTERDLGPARAMS,  * LPSHIFTDIFFERENCEFILTERDLGPARAMS;

The SHIFTDIFFERENCEFILTERDLGPARAMS structure provides information used to initialize the dialog box created by the LDialogImageEffect::DoModalShiftDifferenceFilter function. After the user closes the dialog box, this structure is updated with information about the user's selections.

Member	Description
uStructSize	Size of this structure, in bytes. Use the sizeof operator to calculate this value.
pBitmap	Ignored.
bZoomToFit	Flag that indicates the initial zoom level for previewing the image. Possible values are:
	Value	Meaning
	TRUE	Set the initial zoom level to "Zoom to fit".
	FALSE	Set the initial zoom level to "Normal (1:1)".

pFilter	Address of a variable to be updated with the spatial filter selected in the dialog. The spatial filter applies shift-and-difference edge detection. All pixels not on the detected edges are changed to black. Choose the appropriate value for diagonal, horizontal, or vertical detection. Possible values are:
	Value
	FLT_SHIFTDIFF_DIAG
	FLT_SHIFTDIFF_HORZ
	FLT_SHIFTDIFF_VERT
uDlgFlags	User interface flags for this dialog, which determine the layout and action of the dialog. Possible values are:
	Value	Meaning
	DLG_SHIFTDIFFERENCEFILTER_SHOW_CONTEXTHELP	[0x00000002] dialog should contain a context sensitive help icon.
pfnHelpCallback	Ignored.
pHelpCallBackUserData	Ignored.