LTCOMMDLGHELPCB

#include "l_bitmap.h"

L_VOID pEXT_CALLBACK YourFunction(uFlag, nCtlID, pUserData)

L_UINT32 uFlag;

flag indicating origin of help command message

L_INT nCtlID;

ID of the control

L_VOID *pUserData;

pointer to additional parameters

The callback function that will be called to provide the appropriate help information, based on the dialog from which help was requested.

Parameter Description
uFlag Identifies the origin of the help command message. Possible values are:
  Constant Meaning
  DLG_HELP_OPEN [1] Help command message coming from L_DlgOpen.
  DLG_HELP_SAVE 2] Help command message coming from [L_DlgSave
  DLG_HELP_COLORRES 3] Help command message coming from [L_DlgColorRes
  DLG_HELP_RESIZE 4] Help command message coming from [L_DlgResize
  DLG_HELP_INTENSITYDETECT 5] Help command message coming from [L_DlgIntensityDetect
  DLG_HELP_GAMMAADJUSTMENT 6] Help command message coming from [L_DlgGammaAdjustment
  DLG_HELP_ADDNOISE 7] Help command message coming from [L_DlgAddNoise
  DLG_HELP_GETEFFECT 8] Help command message coming from [L_DlgGetEffect
  DLG_HELP_GETSHAPE 9] Help command message coming from [L_DlgGetShape
  DLG_HELP_GETTEXT 10] Help command message coming from [L_DlgGetText
  DLG_HELP_GETGRADIENT 11] Help command message coming from [L_DlgGetGradient
  DLG_HELP_GETTRANSITION 12] Help command message coming from [L_DlgGetTransition
  DLG_HELP_GETDIRECTORY 13] Help command message coming from [L_DlgGetDirectory
  DLG_HELP_CONTOURFILTER 14] Help command message coming from [L_DlgContourFilter
  DLG_HELP_HALFTONE 15] Help command message coming from [L_DlgHalftone
  DLG_HELP_J2KOPTIONS [16] Help command message coming from L_DlgSave and L_DlgFileConversion
  DLG_HELP_FILEINFO [17] Help command message coming from L_DlgOpen and L_DlgFileConversion
  DLG_HELP_SOLARIZE 18] Help command message coming from [L_DlgSolarize
  DLG_HELP_BRIGHTNESS 19] Help command message coming from [L_DlgBrightness
  DLG_HELP_CONTRAST 20] Help command message coming from [L_DlgContrast
  DLG_HELP_HUE 21] Help command message coming from [L_DlgHue
  DLG_HELP_SATURATION 22] Help command message coming from [L_DlgSaturation
  DLG_HELP_POSTERIZE 24] Help command message coming from [L_DlgPosterize
  DLG_HELP_HISTOCONTRAST 25] Help command message coming from [L_DlgHistoContrast
  DLG_HELP_AVERAGE 26] Help command message coming from [L_DlgAverage
  DLG_HELP_MEDIAN 27] Help command message coming from [L_DlgMedian
  DLG_HELP_MAXFILTER 28] Help command message coming from [L_DlgMaxFilter
  DLG_HELP_MINFILTER 29] Help command message coming from [L_DlgMinFilter
  DLG_HELP_SHARPEN 30] Help command message coming from [L_DlgSharpen
  DLG_HELP_SHIFTDIFFERENCEFILTER 31] Help command message coming from [L_DlgShiftDifferenceFilter
  DLG_HELP_EMBOSS 32] Help command message coming from [L_DlgEmboss
  DLG_HELP_OILIFY 33] Help command message coming from [L_DlgOilify
  DLG_HELP_MOSAIC 34] Help command message coming from [L_DlgMosaic
  DLG_HELP_EROSIONFILTER 35] Help command message coming from [L_DlgErosionFilter
  DLG_HELP_DILATIONFILTER 36] Help command message coming from [L_DlgDilationFilter
  DLG_HELP_GRADIENTFILTER 37] Help command message coming from [L_DlgGradientFilter
  DLG_HELP_LAPLACIANFILTER 38] Help command message coming from [L_DlgLaplacianFilter
  DLG_HELP_SOBELFILTER 39] Help command message coming from [L_DlgSobelFilter
  DLG_HELP_PREWITTFILTER 40] Help command message coming from [L_DlgPrewittFilter
  DLG_HELP_LINESEGMENTFILTER 41] Help command message coming from [L_DlgLineSegmentFilter
  DLG_HELP_ROTATE 42] Help command message coming from [L_DlgRotate
  DLG_HELP_SHEAR 43] Help command message coming from [L_DlgShear
  DLG_HELP_LOADOPTIONS_VECTOR 44] Help command message coming from [L_DlgOpen
  DLG_HELP_LOADOPTIONS_RASTER [45] Help command message coming from L_DlgOpen
  DLG_HELP_LOADOPTIONS_PDF [46] Help command message coming from L_DlgOpen
  DLG_HELP_LOADOPTIONS_GENERAL [47] Help command message coming from L_DlgOpen
  DLG_HELP_SMOOTH 48] Help command message coming from [L_DlgSmooth
  DLG_HELP_LINEREMOVE 49] Help command message coming from [L_DlgLineRemove
  DLG_HELP_BORDERREMOVE 50] Help command message coming from [L_DlgBorderRemove
  DLG_HELP_INVERTEDTEXT 51] Help command message coming from [L_DlgInvertedText
  DLG_HELP_DOTREMOVE 52] Help command message coming from [L_DlgDotRemove
  DLG_HELP_HOLEPUNCHREMOVE 53] Help command message coming from [L_DlgHolePunchRemove
  DLG_HELP_COLOR 54] Help command message coming from [L_DlgColor
  DLG_HELP_CANVASRESIZE 55] Help command message coming from [L_DlgCanvasResize
  DLG_HELP_ADDFRAME 56] Help command message coming from [L_DlgAddFrame
  DLG_HELP_FILESASSOCIATION 57] Help command message coming from [L_DlgFilesAssociation
  DLG_HELP_GIFWEBTUNER 58] Help command message coming from [L_DlgGIFWebTuner
  DLG_HELP_ADDBORDER 59] Help command message coming from [L_DlgAddBorder
  DLG_HELP_HTMLMAPPER 60] Help command message coming from [L_DlgHTMLMapper
  DLG_HELP_JPEGWEBTUNER 62] Help command message coming from [L_DlgJPEGWebTuner
  DLG_HELP_PNGWEBTUNER 63] Help command message coming from [L_DlgPNGWebTuner
  DLG_HELP_CUSTOMIZEPALETTE 64] Help command message coming from [L_DlgCustomizePalette
  DLG_HELP_PICTURIZE 65] Help command message coming from [L_DlgPicturize
  DLG_HELP_UNDERLAY 66] Help command message coming from [L_DlgUnderlay
  DLG_HELP_AUTOTRIM 67] Help command message coming from [L_DlgAutoTrim
  DLG_HELP_GAUSSIANBLUR 68] Help command message coming from [L_DlgGaussianBlur
  DLG_HELP_UNSHARPMASK 69] Help command message coming from [L_DlgUnsharpMask
  DLG_HELP_ANTIALIAS 70] Help command message coming from [L_DlgAntiAlias
  DLG_HELP_EDGEDETECTOR 71] Help command message coming from [L_DlgEdgeDetector
  DLG_HELP_MOTIONBLUR 72] Help command message coming from [L_DlgMotionBlur
  DLG_HELP_GRAYSCALE 73] Help command message coming from [L_DlgGrayScale
  DLG_HELP_COLOREDGRAY 74] Help command message coming from [L_DlgColoredGray
  DLG_HELP_HISTOGRAM 75] Help command message coming from [L_DlgHistogram
  DLG_HELP_MULTIPLY 76] Help command message coming from [L_DlgMultiply
  DLG_HELP_LOCALHISTOEQUALIZE 78] Help command message coming from [L_DlgLocalHistoEqualize
  DLG_HELP_BALANCECOLORS 79] Help command message coming from [L_DlgBalanceColors
  DLG_HELP_ADDBITMAPS 80] Help command message coming from [L_DlgAddBitmaps
  DLG_HELP_PRINTPREVIEW 81] Help command message coming from [L_DlgPrintStitchedImages
  DLG_HELP_REMAPINTENSITY 82] Help command message coming from [L_DlgRemapIntensity
  DLG_HELP_REMAPHUE 83] Help command message coming from [L_DlgRemapHue
  DLG_HELP_FREEHANDWAVE 84] Help command message coming from [L_DlgFreeHandWave
  DLG_HELP_WIND 85] Help command message coming from [L_DlgWind
  DLG_HELP_IMPRESSIONIST 86] Help command message coming from [L_DlgImpressionist
  DLG_HELP_CYLINDRICAL 87] Help command message coming from [L_DlgCylindrical
  DLG_HELP_POLAR 88] Help command message coming from [L_DlgPolar
  DLG_HELP_PIXELATE 89] Help command message coming from [L_DlgPixelate
  DLG_HELP_STITCH 90] Help command message coming from [L_DlgStitch
  DLG_HELP_STITCH_TILE [91] Help command message coming from L_DlgStitch
  DLG_HELP_STITCH_ATTRIBUTES [92] Help command message coming from L_DlgStitch
  DLG_HELP_ZOOMWAVE 93] Help command message coming from [L_DlgZoomWave
  DLG_HELP_RADIALWAVE 94] Help command message coming from [L_DlgRadialWave
  DLG_HELP_RIPPLE 95] Help command message coming from [L_DlgRipple
  DLG_HELP_PUNCH 96] Help command message coming from [L_DlgPunch
  DLG_HELP_BENDING 97] Help command message coming from [L_DlgBending
  DLG_HELP_SPHERIZE 98] Help command message coming from [L_DlgSpherize
  DLG_HELP_SWIRL 99] Help command message coming from [L_DlgSwirl
  DLG_HELP_RADIALBLUR 100] Help command message coming from [L_DlgRadialBlur
  DLG_HELP_ZOOMBLUR 101] Help command message coming from [L_DlgZoomBlur
  DLG_HELP_WAVE 102] Help command message coming from [L_DlgWave
  DLG_HELP_WAVESHEAR 103] Help command message coming from [L_DlgWaveShear
  DLG_HELP_FILECONVERSION 104] Help command message coming from [L_DlgFileConversion
  DLG_HELP_FILESAVEOPTIONS 105] Help command message coming from L_DlgFileConversion and [L_DlgSave
  DLG_HELP_FILELOADOPTIONS 106] Help command message coming from [L_DlgOpen
  DLG_HELP_FILECONVERSION_LOGREPORT [107] Help command message coming from L_DlgFileConversion
  DLG_HELP_PRINTPREVIEW_PREFERENCES 108] Help command message coming from [L_DlgPrintStitchedImages
  DLG_HELP_PRINTSTITCHEDIMAGES [109] Help command message coming from L_DlgPrintStitchedImages
  DLG_HELP_PRINTSTITCHEDIMAGES_DELETEPAGES [110] Help command message coming from L_DlgPrintStitchedImages
  DLG_HELP_PRINTSTITCHEDIMAGES_INSERTPAGES [111] Help command message coming from L_DlgPrintStitchedImages
  DLG_HELP_PRINT [112] Help command message coming from L_DlgPrintStitchedImages
  DLG_HELP_PAGESETUP 113] Help command message coming from [L_DlgPrintStitchedImages
  DLG_HELP_FILECONVERSION_PROGRESS 114] Help command message coming from [L_DlgFileConversion
  DLG_HELP_FILECONVERSION_ADDPROGRESS [115] Help command message coming from L_DlgFileConversion
  DLG_HELP_NAMINGTEMPLATE [116] Help command message coming from L_DlgFileConversion
  DLG_HELP_RENAME [117] Help command message coming from L_DlgFileConversion
  DLG_HELP_FILECONVERSION_ROTATE [118] Help command message coming from L_DlgFileConversion
  DLG_HELP_FILECONVERSION_RESIZE 119] Help command message coming from [L_DlgFileConversion
  DLG_HELP_WINDOWLEVEL 120] Help command message coming from [L_DlgWindowLevel
  DLG_HELP_JBIG2OPTIONS [121] Help command message coming from L_DlgSave and L_DlgFileConversion.
  DLG_HELP_ICCPROFILE [122] Help command message coming from L_DlgICCProfile.
  DLG_HELP_LOADOPTIONS_XPS [123] Help command message coming from L_DlgOpen.
  DLG_HELP_J2KROIOPTIONS [124] Help command message coming from L_DlgOpen.
  DLG_HELP_LOADOPTIONS_XLS [125] Help command message coming from L_DlgOpen.
  DLG_HELP_LOADOPTIONS_RASTERIZEDOCUMENT [126] Help command message coming from L_DlgOpen.
  DLG_HELP_LOADOPTIONS_VFF [127] Help command message coming from L_DlgOpen.
  DLG_HELP_LOADOPTIONS_ANZ [128] Help command message coming from L_DlgOpen.
nCtlID ID of the control that received the context sensitive help click. A value of -1 refers to the Help Button itself. For a list of other possible values, refer to the DLGRESID.H file in the LEAD \ INCLUDE directory.
pUserData A void pointer that you can use to access a variable or structure containing data that your callback function needs. This gives you a way to receive data indirectly from the function that uses this callback function. (This is the same pointer that you pass in the pUserData parameter of the calling function.)
  Keep in mind that this is a void pointer, which must be cast to the appropriate data type within your callback function.

Comments

This callback function is optional. It is necessary only if you wish to provide help information for individual dialogs. The exact nature of the help provided is up to you, but must be outlined in this callback function. In order to implement help for a dialog box, a pointer to this HelpCallback Function must be passed to the specific dialog function. By passing this pointer, a Help button is shown in the dialog.

Returns

None.

Required DLLs and Libraries

LTDLGIMGEFX
LTDLGKRN
LTDLGUTL
LTDLGCTRL
LTDLGCOM
LTDIS
LTIMG
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:

OPENDLGFILELOADCALLBACK

Topics:

Dialogs: Callback Functions

Example

For an example, refer to L_DlgSetFont.

Help Version 19.0.2017.10.27
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LEADTOOLS Common Dialog C API Help
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