typedef struct _LOCALHISTOEQUALIZEDLGPARAMS{L_UINT uStructSize;pBITMAPHANDLE pBitmap;L_BOOL bZoomToFit;L_INT nWidth;L_INT nHeight;L_INT nXExtention;L_INT nYExtention;L_UINT uType;L_UINT uSmooth;L_UINT32 uDlgFlags;LTCOMMDLGHELPCB pfnHelpCallback;L_VOID *pHelpCallBackUserData;} LOCALHISTOEQUALIZEDLGPARAMS, * LPLOCALHISTOEQUALIZEDLGPARAMS;
The LOCALHISTOEQUALIZEDLGPARAMS structure provides information used to initialize the dialog box created by the LDialogColor::DoModalLocalHistoEqualize 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)". | |
| nWidth | The width of the local histogram equalizer rectangle, in pixels. The width should be more than zero. | |
| nHeight | The height of the local histogram equalizer rectangle, in pixels. The height should be more than zero. | |
| nXExtention | The extension of the width of the local histogram equalizer rectangle, in pixels. | |
| nYExtention | The extension of the height of the local histogram equalizer rectangle, in pixels. | |
| uType | Flag that indicates which color space to equalize. Possible values are: | |
| Value | Meaning | |
| RGB_SPACE | [0x0001] Linearize the number of pixels across the RGB color space. (Separated channels) | |
| YUV_SPACE | [0x0002] Linearize the number of pixels across the YUV color space. (Best results) | |
| GRAY_SPACE | [0x0004] Linearize the number of pixels per gray level in a gray level representation of the image. | |
| uSmooth | Size of the area to be used when smoothing the edges between localized blocks. Possible values range from 0 to 7, but if nHeight is less than or equal to 7 then the maximum value for this item is nHeight - 1. | |
| uDlgFlags | User interface flags for this dialog, which determine the layout and action of the dialog. Possible values are: | |
| Value | Meaning | |
| DLG_LOCALHISTOEQUALIZE_SHOW_CONTEXTHELP | [0x00000002] dialog should contain a context sensitive help icon. | |
| DLG_LOCALHISTOEQUALIZE_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. | |