COLOREDGRAYDLGPARAMS

typedef struct _COLOREDGRAYDLGPARAMS 
{ 
   L_UINT uStructSize; 
   pBITMAPHANDLE pBitmap; 
   L_BOOL bZoomToFit; 
   L_INT nRedFactor; 
   L_INT nGreenFactor; 
   L_INT nBlueFactor; 
   L_INT nRedGrayFactor; 
   L_INT nGreenGrayFactor; 
   L_INT nBlueGrayFactor; 
   L_UINT32 uDlgFlags; 
   LTCOMMDLGHELPCB pfnHelpCallback; 
   L_VOID  *pHelpCallBackUserData; 
} COLOREDGRAYDLGPARAMS,  * LPCOLOREDGRAYDLGPARAMS; 

The COLOREDGRAYDLGPARAMS structure provides information used to initialize the dialog box created by the LDialogColor::DoModalColoredGray 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)".
nRedFactor Value that represents the percentage or weight given to the red value of each pixel in the bitmap. Possible values are (0-1000), nRedFactor + nGreenFactor + nBlueFactor must equal 1000.
nGreenFactor Value that represents the percentage or weight given to the green value of each pixel in the bitmap. Possible values are (0-1000), nRedFactor + nGreenFactor + nBlueFactor must equal 1000.
nBlueFactor Value that represents the percentage or weight given to the blue value of each pixel in the bitmap. Possible values are (0-1000), nRedFactor + nGreenFactor + nBlueFactor must equal 1000.
nRedGrayFactor Additional weighting factor (percentage) used to modify the red component in the output pixel. This value can be negative. Possible values are -1000 to 1000.
nGreenGrayFactor Additional weighting factor (percentage) used to modify the green component in the output pixel. This value can be negative. Possible values are -1000 1000).
nBlueGrayFactor Additional weighting factor (percentage) used to modify the blue component in the output pixel. This value can be negative. Possible values are (-1000-1000).
uDlgFlags User interface flags for this dialog, which determine the layout and action of the dialog. Possible values are:
  Value Meaning
  DLG_COLOREDGRAY_SHOW_CONTEXTHELP [0x00000002] dialog should contain a context sensitive help icon.
pfnHelpCallback Ignored.
pHelpCallBackUserData Ignored.
Help Version 20.0.2019.3.11
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