REMAPINTENSITYDLGPARAMS

Summary

The REMAPINTENSITYDLGPARAMS structure provides information used to initialize the dialog box created by the L_DlgRemapIntensity function. After the user closes the dialog box, this structure is updated with information about the user's selections.

Syntax

typedef struct _REMAPINTENSITYDLGPARAMS 
{ 
   L_UINT uStructSize; 
   pBITMAPHANDLE pBitmap; 
   L_BOOL bZoomToFit; 
   L_UINT uChannel; 
   L_UINT *puRGBLookup; 
   L_UINT *puRedLookup; 
   L_UINT *puGreenLookup; 
   L_UINT *puBlueLookup; 
   L_UINT uLookupLen; 
   L_UINT32 uDlgFlags; 
   LTCOMMDLGHELPCB pfnHelpCallback; 
   L_VOID *pHelpCallBackUserData; 
} REMAPINTENSITYDLGPARAMS,* LPREMAPINTENSITYDLGPARAMS; 

Members

uStructSize

Size of this structure, in bytes. Use the sizeof operator to calculate this value.

pBitmap

Pointer to the bitmap handle that references the bitmap used for preview or processing.

bZoomToFit

Flag that indicates the initial zoom level for previewing the image. Possible values are:

uChannel

Value that represents the channel for which to change the intensity. Possible values are:

puRGBLookup

Pointer to a table of integers containing a lookup table for the RGB channel values. LEADTOOLS will allocate this during the call to L_DlgRemapIntensity unless you include the DLG_REMAPINTENSITY_AUTOPROCESS flag in the uDlgFlags field of this structure. You should free this pointer using the Windows C API GlobalFree when it is no longer needed. The length of the table is in uLookupLen. You should use this structure member if the user sets uChannel to CHANNEL_MASTER.

puRedLookup

Pointer to a table of integers containing the Red channel values. LEADTOOLS will allocate this during the call to L_DlgRemapIntensity unless you include the DLG_REMAPINTENSITY_AUTOPROCESS flag in the uDlgFlags field of this structure. You should free this pointer using the Windows C API GlobalFree when it is no longer needed. The length of the table is in uLookupLen. You should use this structure member if the user sets uChannel to CHANNEL_RED.

puGreenLookup

Pointer to a table of integers containing the Green channel values. LEADTOOLS will allocate this during the call to L_DlgRemapIntensity unless you include the DLG_REMAPINTENSITY_AUTOPROCESS flag in the uDlgFlags field of this structure. You should free this pointer using the Windows C API GlobalFree when it is no longer needed. The length of the table is in uLookupLen. You should use this structure member if the user sets uChannel to CHANNEL_GREEN.

puBlueLookup

Pointer to a table of integers containing the Blue channel values. LEADTOOLS will allocate this during the call to L_DlgRemapIntensity unless you include the DLG_REMAPINTENSITY_AUTOPROCESS flag in the uDlgFlags field of this structure. You should free this pointer using the Windows C API GlobalFree when it is no longer needed. The length of the table is in uLookupLen. You should use this structure member if the user sets uChannel to CHANNEL_BLUE.

uLookupLen

Length of the lookup table. Possible values are:

uDlgFlags

User interface flags for this dialog, which determine the layout and action of the dialog. Possible values are:

pfnHelpCallback

Pointer to an optional help callback function. If you do not wish to provide help to this dialog, use NULL as the value of this parameter. To provide help to this dialog, use the function pointer as the value of this parameter. The callback function must adhere to the prototype described in LTCOMMDLGHELPCB.

pHelpCallBackUserData

Void pointer that you can use to pass one or more additional parameters that the callback function needs. To use this feature, assign a value to a variable or create a structure that contains as many fields as you need. Then, in this parameter, pass the address of the variable or structure, casting it to L_VOID *. The callback function, which receives the address in its own pHelpCallBackUserData parameter, can cast it to a pointer of the appropriate data type to access your variable or structure. If the additional parameters are not needed, you can pass NULL in this parameter.

Usage

• L_DlgRemapIntensity