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. |