LDialogColor::DoModalRemapIntensity

Summary

Displays the Remap Intensity dialog box, and gets the options for LBitmap::RemapIntensity.

Syntax

virtual L_INT LDialogColor::DoModalRemapIntensity(hWndOwner)

Parameters

HWND hWndOwner

Handle of the window which owns the dialog.

Returns

Comments

LDialogColor::SetRemapIntensityParams must be called before using this function to set the initial values for the dialog. You can get the updated REMAPINTENSITYDLGPARAMS with the values entered by the user through the dialog by using LDialogColor::GetRemapIntensityParams.

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
• 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

• LDialogBase::Initialize
• LBitmap::GrayScaleExt

Topics

• Using Imaging Common Dialog
• Curve Control

Example

L_INT LDialogColor_DoModalRemapIntensityExample(LBitmap * pBitmap, HWND hWnd) 
{ 
   L_INT nRet; 
 
   LDialogColor DlgColor; 
 
   nRet = DlgColor.Initialize(DLG_INIT_COLOR ); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   DlgColor.SetBitmap(pBitmap); 
 
   REMAPINTENSITYDLGPARAMS DlgParams;  
 
   memset ( &DlgParams, 0, sizeof ( REMAPINTENSITYDLGPARAMS  ) ) ; 
 
   DlgParams.uStructSize = sizeof ( REMAPINTENSITYDLGPARAMS ) ; 
   DlgParams.uChannel = CHANNEL_RED ; 
 
   DlgColor.EnableCallBack(FALSE); 
   DlgColor.EnablePreview(TRUE); 
   DlgColor.EnableAutoProcess(TRUE); 
   DlgColor.EnableToolbar(TRUE); 
 
   nRet = DlgColor.SetRemapIntensityParams(&DlgParams) ; 
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = DlgColor.DoModalRemapIntensity(hWnd); 
   if(nRet < 1) 
      return nRet; 
 
   // Gets the updated values for the structure 
 
   nRet = DlgColor.GetRemapIntensityParams(&DlgParams, sizeof(DlgParams)) ; 
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = DlgColor.Free(); 
   if(nRet != SUCCESS) 
      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 ) ; 
 
   } 
 
   return nRet; 
}