typedef struct _EFFECTDLGPARAMS 
   L_UINT uStructSize; 
   pBITMAPHANDLE pBitmap; 
   L_UINT uEffect; 
   L_UINT uGrain; 
   L_UINT uDelay; 
   L_UINT uMaxPass; 
   L_BOOL bTransparent; 
   COLORREF crTransparent; 
   L_UINT uWandWidth; 
   COLORREF crWand; 
   L_UINT32 uDlgFlags; 
   LTCOMMDLGHELPCB pfnHelpCallback; 
   L_VOID  *pHelpCallBackUserData; 

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



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




The effect to use.


The grain size.


The delay, in milliseconds.


The maximum number of passes.


Flag that indicates whether to use a transparent color. Possible values are:

Value Meaning
TRUE Use the transparent color specified in crTransparent.
FALSE Do not use a transparent color.


The transparent color to use. You can specify a COLORREF value, such as the return value of the Windows RGB macro, or you can use the PALETTEINDEX macro to specify a palette color.


The width of the wand, in pixels.


The color of the wand. You can specify a COLORREF value, such as the return value of the Windows RGB macro, or you can use the PALETTEINDEX macro to specify a palette color.


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

Value Meaning
DLG_EFFECT_SHOW_CONTEXTHELP [0x00000001] dialog should contain a context sensitive help icon.
DLG_EFFECT_SHOW_PREVIEW [0x00000002] show a preview of the image in the dialog. The pBitmap member of this structure should contain a valid bitmap.
DLG_EFFECT_AUTOPREVIEW [0x00000004] auto preview when options change
DLG_EFFECT_DELAY [0x00000008] effect delay is an option
DLG_EFFECT_GRAIN [0x00000010] effect grain is an option
DLG_EFFECT_PASSES [0x00000020] effect passes is an option
DLG_EFFECT_TRANSPARENT [0x00000040] transparency is an option
DLG_EFFECT_WAND [0x00000080] wand is an option
DLG_EFFECT_NO_TREEVIEW [0x00000100] DO NOT use TreeView
DLG_EFFECT_CLASS_NONE [0x00000200] no effect is an option
DLG_EFFECT_CLASS_WIPE [0x00000400] linear wipe is an option
DLG_EFFECT_CLASS_WIPERECT [0x00000800] rectangular wipe is an option
DLG_EFFECT_CLASS_WIPECIRCLE [0x00001000] circular wipe is an option
DLG_EFFECT_CLASS_PUSH [0x00002000] push is an option
DLG_EFFECT_CLASS_SLIDE [0x00004000] slide is an option
DLG_EFFECT_CLASS_ROLL [0x00008000] roll is an option
DLG_EFFECT_CLASS_ROTATE [0x00010000] rotate is an option
DLG_EFFECT_CLASS_ZOOM [0x00020000] zoom is an option
DLG_EFFECT_CLASS_DRIP [0x00040000] drip is an option
DLG_EFFECT_CLASS_BLIND [0x00080000] blind is an option
DLG_EFFECT_CLASS_RANDOM [0x00100000] random is an option
DLG_EFFECT_CLASS_CHECK [0x00200000] check is an option
DLG_EFFECT_CLASS_BLOCKS [0x00400000] blocks is an option
DLG_EFFECT_CLASS_CIRCLE [0x00800000] circle is an option
DLG_EFFECT_CLASS_ELLIPSE [0x01000000] ellipse is an option





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LEADTOOLS Common Dialog C++ Class Library Help