LOCALHISTOEQUALIZEDLGPARAMS

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.
Help Version 19.0.2017.10.27
Products | Support | Contact Us | Copyright Notices
© 1991-2017 LEAD Technologies, Inc. All Rights Reserved.
LEADTOOLS Common Dialog C++ Class Library Help