ShowRemapHueDlg method (ILEADRasterDlgClr)

Syntax	short ShowRemapHueDlg(long hWnd);
Overview	Refer to Using Imaging Common Dialogs

Remarks

Displays the Remap Hue dialog box, and gets the options for the RemapHue method.

The layout and action of the dialog depends on the flags set in the UIFlags property. Possible options are:

Value	Meaning
REMAPHUE_AUTOPROCESS	[0x00000001] process the image on OK. The Common Dialog Bitmap property must be assigned a valid bitmap before calling this method.
REMAPHUE_SHOW_CONTEXTHELP	[0x00000002] dialog should contain a context sensitive help icon.
REMAPHUE_SHOW_PREVIEW	[0x00000004] show a preview of the image in the dialog. The Common Dialog Bitmap property must be assigned a valid bitmap before calling this method.
REMAPHUE_SHOW_TOOL_ZOOMLEVEL	[0x00000008] show the "Zoom to fit" and "Zoom Normal" toolbar buttons. The REMAPHUE_SHOW_PREVIEW flag must be set in order to show these buttons.

If you include REMAPHUE_AUTOPROCESS or REMAPHUE_SHOW_PREVIEW in the UIFlags property, the Common Dialog Bitmap property must be assigned a valid bitmap before calling this method.

The following properties are associated with this dialog:

MaskTable property

HueTable property

SaturationTable property

ValueTable property

RemapTableSize property

To include a Help button in the dialog, set the ShowHelpButton property to VARIANT_TRUE.

The Remap Hue dialog can be seen below:

$image\RemapHue.gif$

This dialog has the following fields:

Channel Drop-down list box:

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

- Hue: remaps the Hue channel, for the values within the mask range.

- Saturation: remaps the Saturation channel, for the values within the mask range.

- Value: remaps the Value channel, for the values within the mask range.

Curve Mode Drop-down list box:

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

- $image\Control_Curve_Mode_Curve.gif$ Curve: remaps the selected channel using curve data.

- $image\Control_Curve_Mode_Linear.gif$ Linear: remaps the selected channel using linear data.

- $image\Control_Curve_Mode_Exponential.gif$ Exponential: remaps the selected channel using exponential data, which is affected by the Factor value.

- $image\Control_Curve_Mode_Logarithm.gif$ 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:

- $image\Control_Curve_Flip_Both.gif$ Both. Flip the curve vertically and horizontally.

- $image\Control_Curve_Flip_Vertically.gif$ Vertically. Flip the curve vertically.

- $image\Control_Curve_Flip_Horizontal.gif$ Horizontally. Flip the curve horizontally.

Mask Multi-Slider:

Use the Mask Multi-slider Control to specify the range of values for which to apply the changes specified by the channel, the Curve mode and the factor. The first marker from the left is the minimum value of the range, and the second is the maximum value.

Reset Button:

Use the Reset button to set the curve of the current channel to the 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 "*.lrh" file that contains Remap Hue 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 "*.lrh" file. This allows you set the same curve settings for other images by re-loading the file.