References ▼
The ROTATEDLGPARAMS structure provides information used to initialize the dialog box created by the LDialogImage::DoModalRotate function. After the user closes the dialog box, this structure is updated with information about the user's selections.
typedef struct _ROTATEDLGPARAMS{L_UINT uStructSize;pBITMAPHANDLE pBitmap;L_INT nAngle;L_BOOL bResize;L_UINT uRotateFlags;COLORREF crBack;L_UINT32 uDlgFlags;LTCOMMDLGHELPCB pfnHelpCallback;L_VOID *pHelpCallBackUserData;} ROTATEDLGPARAMS, * LPROTATEDLGPARAMS;
Size of this structure, in bytes. Use the sizeof operator to calculate this value.
Pointer to the bitmap handle that references the bitmap used for preview or processing.
A variable to be updated with the angle by which to rotate the image entered in the dialog. This angle is measured in hundredths of degrees. Possible values range from -36000 - +36000. A positive value will rotate the image in a clockwise rotation, while a negative value will rotate the image in a counter-clockwise rotation.
A flag that indicates whether to resize the resulting image as needed. Possible values are:
| Value | Meaning |
|---|---|
| TRUE | Check the check box and resize the resulting image as needed. |
| FALSE | Clear the check box and do not resize the resulting image. |
Variable to be updated with a value that represents the type of resizing to perform. Possible values are:
| Value | Meaning |
|---|---|
| 0 | Normal resize. |
| ROTATE_RESAMPLE | Resample resize. |
| ROTATE_BICUBIC | Bicubic resize. |
A variable to be updated with the background fill color entered in the dialog. 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.
User interface flags for this dialog, which determine the layout and action of the dialog. Possible values are:
| Value | Meaning |
|---|---|
| DLG_ROTATE_AUTOPROCESS | [0x00000001] process the image on OK. The pBitmap member of this structure should contain a valid bitmap. |
| DLG_ROTATE_SHOW_CONTEXTHELP | [0x00000002] dialog should contain a context sensitive help icon. |
| DLG_ROTATE_SHOW_PREVIEW | [0x00000004] show a preview of the image in the dialog. The pBitmap member of this structure should contain a valid bitmap. |
| DLG_ROTATE_SHOW_BACKCOLOR | [0x00000008] dialog will show the background color button. |
| DLG_ROTATE_SHOW_RESIZE | [0x00000010] dialog will show the resize check box. |
Ignored.
Ignored.