Help Version 19.0.2017.10.27
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typedef struct _LAPLACIANFILTERDLGPARAMS{L_UINT uStructSize;pBITMAPHANDLE pBitmap;L_BOOL bZoomToFit;pSPATIALFLT pFilter;L_UINT32 uDlgFlags;LTCOMMDLGHELPCB pfnHelpCallback;L_VOID *pHelpCallBackUserData;} LAPLACIANFILTERDLGPARAMS, * LPLAPLACIANFILTERDLGPARAMS;
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.
| 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. 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: | |
| Value | ||
| FLT_LAPLACE_1 | ||
| FLT_LAPLACE_2 | ||
| FLT_LAPLACE_3 | ||
| FLT_LAPLACE_DIAG | ||
| FLT_LAPLACE_HORZ | ||
| FLT_LAPLACE_VERT | ||
| uDlgFlags | User interface flags for this dialog, which determine the layout and action of the dialog. Possible values are: | |
| Value | Meaning | |
| DLG_LAPLACIANFILTER_SHOW_CONTEXTHELP | [0x00000002] dialog should contain a context sensitive help icon. | |
| pfnHelpCallback | Ignored. | |
| pHelpCallBackUserData | Ignored. | |
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