UNSHARPMASKDLGPARAMS

typedef struct _UNSHARPMASKDLGPARAMS
{
   L_UINT uStructSize;
   pBITMAPHANDLE pBitmap;
   L_BOOL bZoomToFit;
   L_INT nAmount;
   L_INT nRadius;
   L_INT nThreshold;
   L_UINT uUnshrpMaskFlags;
   L_UINT32 uDlgFlags;
   LTCOMMDLGHELPCB pfnHelpCallback;
   L_VOID  *pHelpCallBackUserData;
} UNSHARPMASKDLGPARAMS,  * LPUNSHARPMASKDLGPARAMS ;

The UNSHARPMASKDLGPARAMS structure provides information used to initialize the dialog box created by the LDialogImageEffect::DoModalUnsharpMask 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)".
nAmount	Value that represents an adjustment factor. Possible values range from 0 - 500.
nRadius	Value that indicates the size of the neighborhood used for blurring each pixel of the bitmap. Possible values range from 1 – 1000.
nThreshold	Value that indicates the threshold for modifying the original value of the pixel. Possible values range from 0 - 255.
uUnshrpMaskFlags	Flag that indicates the color space in which to apply the mask. Possible values are:
	Value	Meaning
	RGB_SPACE	[0x0001] Apply the mask in the RGB color space.
	YUV_SPACE	[0x0002] Apply the mask in the YUV color space.

uDlgFlags	User interface flags for this dialog, which determine the layout and action of the dialog. Possible values are:
	Value	Meaning
	DLG_UNSHARPMASK_SHOW_CONTEXTHELP	[0x00000002] dialog should contain a context sensitive help icon.
	DLG_UNSHARPMASK_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.