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LAPLACIANFILTERDLGPARAMS

Summary

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

Syntax

typedef struct _LAPLACIANFILTERDLGPARAMS 
{ 
   L_UINT uStructSize; 
   pBITMAPHANDLE pBitmap; 
   L_BOOL bZoomToFit; 
   pSPATIALFLT pFilter; 
   L_UINT32 uDlgFlags; 
   LTCOMMDLGHELPCB pfnHelpCallback; 
   L_VOID  *pHelpCallBackUserData; 
} LAPLACIANFILTERDLGPARAMS,  * LPLAPLACIANFILTERDLGPARAMS;

Members

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. Laplacian filters apply Laplacian line detection. There are three omnidirectional filters and three bi-directional ones. All pixels not on the detected lines are changed to black. Possible values are: