LEADTOOLS Common Dialog C++ Class Library Help
| LEADTOOLS Common Dialog C++ Class Library Help > Quick Reference > Data Types > LAPLACIANFILTERDLGPARAMS |
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.
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Member |
Description |
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uStructSize |
Size of this structure, in bytes. Use the sizeof operator to calculate this value. |
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pBitmap |
Ignored. |
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bZoomToFit |
Flag that indicates the initial zoom level for previewing the image. Possible values are: |
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Value |
Meaning |
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TRUE |
Set the initial zoom level to "Zoom to fit". |
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FALSE |
Set the initial zoom level to "Normal (1:1)". |
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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: |
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Value |
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FLT_LAPLACE_1 |
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FLT_LAPLACE_2 |
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FLT_LAPLACE_3 |
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FLT_LAPLACE_DIAG |
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FLT_LAPLACE_HORZ |
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FLT_LAPLACE_VERT |
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uDlgFlags |
User interface flags for this dialog, which determine the layout and action of the dialog. Possible values are: |
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Value |
Meaning |
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DLG_LAPLACIANFILTER_SHOW_CONTEXTHELP |
[0x00000002] dialog should contain a context sensitive help icon. |
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pfnHelpCallback |
Ignored. |
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pHelpCallBackUserData |
Ignored. |
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