References ▼
typedef struct _BENDINGDLGPARAMS{L_UINT uStructSize;pBITMAPHANDLE pBitmap;L_BOOL bZoomToFit;L_INT nValue;POINT ptCenter;COLORREF crFill;L_UINT uBendingFlags;L_UINT32 uDlgFlags;LTCOMMDLGHELPCB pfnHelpCallback;L_VOID *pHelpCallBackUserData;} BENDINGDLGPARAMS, * LPBENDINGDLGPARAMS;
The BENDINGDLGPARAMS structure provides information used to initialize the dialog box created by the LDialogImageEffect::DoModalBending 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)". | |
| nValue | Amount of stretching, where positive values stretch the pixels toward edges, and negative values stretch the pixels toward the center. Possible values range from −500 to 500. | |
| ptCenter | A POINT structure that contains the center of the arc. This is ignored when either BND_HORZ or BND_VERT is set in the uBendingFlags member. The center point must be defined inside the bitmap or inside the region, if the bitmap has a region. | |
| crFill | The COLORREF value that specifies the fill color for any exposed areas. You can specify a COLORREF value, such as the return value of the Windows RGB macro, or you can use the PALETTEINDEX macro to specify a palette color. | |
| uBendingFlags | Flags that indicate how to handle peripherally exposed areas, how to handle centrally exposed areas and the type of bending. You can use a bitwise OR (|) to specify one flag from each group. | |
| The following are the flags that indicate how to handle peripherally exposed areas: | ||
| Value | Meaning | |
| FILL_CLR | [0x0000] fill exposed areas with the color in crFill. | |
| FILL_RPT | [0x0001] stretch the edges of the image to fill exposed areas. | |
| FILL_NOCHG | [0x0002] do not change or process exposed areas. | |
| The following are the flags that indicate how to handle an exposed center: | ||
| Value | Meaning | |
| FILL_ROT | [0x0000] Rotate the image inside the arc pattern. | |
| FILL_WOUTROT | [0x0010] Fill the exposed center as you would any other exposed area. This is determined by setting the FILL_CLR, FILL_RPT or FILL_NOCHG flags. This flag is ignored if the nValue is negative. | |
| The following are the flags that indicate how the bitmap is bent: | ||
| Value | Meaning | |
| BND_NORM | [0x0000] Stretch the image along the vertical and horizontal planes. | |
| BND_HORZ | [0x0100] Stretch the image along the horizontal plane. | |
| BND_VERT | [0x0200] Stretch the image along the vertical plane. | |
| uDlgFlags | User interface flags for this dialog, which determine the layout and action of the dialog. Possible values are: | |
| Value | Meaning | |
| DLG_BENDING_SHOW_CONTEXTHELP | [0x00000002] dialog should contain a context sensitive help icon. | |
| DLG_BENDING_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. | |