L_DlgRemapIntensity

Summary

Displays the Remap Intensity dialog box, and gets the options for L_RemapBitmapIntensity.

Syntax

L_LTDLG_API L_INT L_DlgRemapIntensity (hWndOwner, pDlgParams)

Parameters

L_HWND hWndOwner

Handle of the window which owns the dialog.

LPREMAPINTENSITYDLGPARAMS pDlgParams

Pointer to a REMAPINTENSITYDLGPARAMS structure to be updated with the values entered by the user, through the dialog. Set members of this structure, before calling this function, to set the dialogs initial values.

Returns

Comments

The Remap Intensity dialog.

This dialog has the following fields:

Channel Drop-down list box:

Use this to select the channel to remap. There are four choices:

• RGB: remap all channels.
• Red: remap the red channel.
• Green: remap the green channel.
• Blue: remap the blue channel.

Curve Mode Drop-down list box:

Use this to select the curve mode to use when remapping. There are four choices:

• Curve

  
  : remaps the selected channel using curve data.

• Linear

  
  : remaps the selected channel using linear data.

• Exponential

  
  : remaps the selected channel using exponential data, which is affected by the Factor value.

• Logarithm

  
  : remaps the selected channel using logarithmic data, which is affected by the Factor value.

Factor Edit box:

Use this to set the factor of the Exponential/Logarithm curve. Enter the value directly in the edit box or use the arrows to set the desired value.

Flip Buttons:

Use these buttons to flip the curve if the Curve Mode is either Curve or Linear. The following options are available:

• Both

  
  : Flip the curve vertically and horizontally.

• Vertically

  
  : Flip the curve vertically.

• Horizontally

  
  : Flip the curve horizontally.

Reset Button:

Use the Reset button to set the curve of the current channel to default values.

Reset All Button:

Use the Reset All button to set the curve for all the channels to default values.

Load Button:

Use the Load button to load an "*.lri" file that contains Remap Intensity curve settings, using the Load dialog. The loaded file will set a new curve for each channel.

✎ NOTE

Loading curve settings will overwrite all current settings for all channels.

Save Button:

Use the Save button to save all the curve settings for all the channels into an "*.lri" file. This allows you set the same curve settings for other images by re-loading the file.

Required DLLs and Libraries

• LTDLGCLR
• LTDLGKRN
• LTDLGUTL
• LTDLGCTRL
• LTDLGCOM
• LTDIS
• LTIMGUTL
• LTIMGCLR
• LTIMGEFX
• LTKRN
• For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application

See Also

Functions

• L_DlgInit
• L_RemapBitmapIntensity

Topics

• Dialogs: Color Manipulation
• Using Imaging Common Dialog
• Curve Control Dialog

Example

L_INT ShowDlgRemapIntensityExample(HWND           hWnd, 
                                    pBITMAPHANDLE  pBitmap) 
{ 
   L_INT nRet; 
   REMAPINTENSITYDLGPARAMS DlgParams ;  
 
   memset ( &DlgParams, 0, sizeof ( REMAPINTENSITYDLGPARAMS ) ) ; 
 
   DlgParams.uStructSize = sizeof ( REMAPINTENSITYDLGPARAMS ) ; 
   DlgParams.pBitmap     = pBitmap ; 
   DlgParams.uChannel    = CHANNEL_RED ;  
   DlgParams.uDlgFlags   = DLG_REMAPINTENSITY_SHOW_PREVIEW        | 
                           DLG_REMAPINTENSITY_SHOW_TOOL_ZOOMLEVEL ; 
 
   nRet = L_DlgInit ( DLG_INIT_COLOR ) ; 
   if(nRet != SUCCESS && nRet != ERROR_DLG_ALREADYINITIATED) 
      return nRet; 
 
   nRet = L_DlgRemapIntensity ( hWnd, &DlgParams ) ; 
   if(nRet < 1) 
      return nRet; 
 
   if ( NULL != DlgParams.puRGBLookup ) 
   { 
      GlobalFree ( DlgParams.puRGBLookup ) ; 
   } 
 
   if ( NULL != DlgParams.puRedLookup ) 
   { 
      GlobalFree ( DlgParams.puRedLookup ) ; 
   } 
 
   if ( NULL != DlgParams.puGreenLookup ) 
   { 
      GlobalFree ( DlgParams.puGreenLookup ) ; 
   } 
 
   if ( NULL != DlgParams.puBlueLookup ) 
   { 
      GlobalFree ( DlgParams.puBlueLookup ) ; 
   } 
 
   nRet = L_DlgFree () ; 
   if(nRet != SUCCESS) 
      return nRet; 
   return SUCCESS; 
} ;