typedef struct _ZOOMBLURDLGPARAMS 
   L_UINT uStructSize; 
   pBITMAPHANDLE pBitmap; 
   L_BOOL bZoomToFit; 
   L_UINT uDim; 
   L_UINT uStress; 
   POINT ptCenter; 
   L_UINT32 uDlgFlags; 
   LTCOMMDLGHELPCB pfnHelpCallback; 
   L_VOID  *pHelpCallBackUserData; 

The ZOOMBLURDLGPARAMS structure provides information used to initialize the dialog box created by the LDialogImageEffect::DoModalZoomBlur 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)".
uDim The amount of blur. Possible values range from 2 - 100.
uStress Blur intensity. Possible values range from 0 - 100.
ptCenter POINT structure that contains the point about which the image is blurred and zoomed. The point should be within the image rectangle coordinates. However, if there is a region in the bitmap, then the point should be within the region.
uDlgFlags User interface flags for this dialog, which determine the layout and action of the dialog. Possible values are:
  Value Meaning
  DLG_ZOOMBLUR_SHOW_CONTEXTHELP [0x00000002] dialog should contain a context sensitive help icon.
  DLG_ZOOMBLUR_SHOW_APPLY [0x00000080] Show the Apply button in the dialog. The dialog will not apply any effect unless the user presses the Apply button.
pfnHelpCallback Ignored.
pHelpCallBackUserData Ignored.
Help Version 20.0.2019.3.11
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LEADTOOLS Common Dialog C++ Class Library Help