ANTIALIASDLGPARAMS

typedef struct _ANTIALIASDLGPARAMS 
{ 
   L_UINT uStructSize; 
   pBITMAPHANDLE pBitmap; 
   L_BOOL bZoomToFit; 
   L_INT nThreshold; 
   L_UINT uDim; 
   L_UINT uFilter; 
   L_UINT32 uDlgFlags; 
   LTCOMMDLGHELPCB pfnHelpCallback; 
   L_VOID  *pHelpCallBackUserData; 
} ANTIALIASDLGPARAMS,  * LPANTIALIASDLGPARAMS;

The ANTIALIASDLGPARAMS structure provides information used to initialize the dialog box created by the LDialogImageEffect::DoModalAntiAlias 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)".

nThreshold	Threshold value that indicates which pixels to smooth. The application of the anti-aliasing filter on the image associates a value with each pixel. Only pixels with values above this threshold are smoothed. Range of possible values are:
	If the image is:	Unsigned	Signed
	12-bit.	0-4095	-2048 to +2047
	16-bit, 48-bit, or 64-bit.	0-65535	-32768 to +32767
	Other bits per pixel.	0-255
uDim	Value that indicates the size of the anti-aliasing mask. This value represents the side of a square neighborhood. Possible values range from 2 - 100.
uFilter	Flag that indicates the type of anti-aliasing filter to use. Possible values are:
	Value	Meaning
	ANTIALIAS_1	[0x0000] Anti-alias the bitmap vertically and horizontally.
	ANTIALIAS_2	[0x0001] Anti-alias the bitmap in all directions.
	ANTIALIAS_3	[0x0002] Anti-alias the bitmap in all directions. The filter used for this option is different from the filter used for the ANTIALIAS_2 option.
	ANTIALIAS_DIAG	[0x0003] Anti-alias the bitmap diagonally.
	ANTIALIAS_HORZ	[0x0004] Anti-alias the bitmap horizontally.
	ANTIALIAS_VERT	[0x0005] Anti-alias the bitmap vertically.

uDlgFlags	User interface flags for this dialog, which determine the layout and action of the dialog. Possible values are:
	Value	Meaning
	DLG_ANTIALIAS_SHOW_CONTEXTHELP	[0x00000002] dialog should contain a context sensitive help icon.
	DLG_ANTIALIAS_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 19.0.2017.10.27