GRADIENTDLGPARAMS

Summary

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

Syntax

typedef struct _GRADIENTDLGPARAMS 
{ 
   L_UINT uStructSize; 
   pBITMAPHANDLE pBitmap; 
   L_UINT uStyle; 
   COLORREF crStart; 
   COLORREF crEnd; 
   L_UINT uSteps; 
   L_UINT32 uDlgFlags; 
   LTCOMMDLGHELPCB pfnHelpCallback; 
   L_VOID  *pHelpCallBackUserData; 
} GRADIENTDLGPARAMS,  * LPGRADIENTDLGPARAMS; 

Members

uStructSize

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

pBitmap

Ignored.

uStyle

The gradient style. For a list of possible values, refer to Effect Gradient Styles.

crStart

The starting color of the gradient. 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.

crEnd

The ending color of the gradient. 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.

uSteps

The number of steps in the gradient.

uDlgFlags

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

pfnHelpCallback

Ignored.

pHelpCallBackUserData

Ignored.

Usage

• LBitmapWindow::GetGradientParameters
• LBitmapWindow::SetGradientParameters
• LDialogEffect::GetGradientParams
• LDialogEffect::SetGradientParams
• LPaintEffect::GetGradientParameters
• LPaintEffect::LPaintEffect
• LPaintEffect::SetGradientParameters