References ▼
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.
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;
Size of this structure, in bytes. Use the sizeof operator to calculate this value.
Ignored.
The gradient style. For a list of possible values, refer to Effect Gradient Styles.
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.
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.
The number of steps in the gradient.
User interface flags for this dialog, which determines the layout and action of the dialog. Possible values are:
| Value | Meaning |
|---|---|
| DLG_GRADIENT_SHOW_CONTEXTHELP | [0x00000001] dialog should contain a context sensitive help icon. |
| DLG_GRADIENT_SHOW_PREVIEW | [0x00000002] show a preview of the image in the dialog. The pBitmap member of this structure should contain a valid bitmap. |
| DLG_GRADIENT_AUTOPREVIEW | [0x00000004] auto preview when options change |
| DLG_GRADIENT_STARTCOLOR | [0x00000008] start color is an option |
| DLG_GRADIENT_ENDCOLOR | [0x00000010] end color is an option |
| DLG_GRADIENT_STEPS | [0x00000020] gradient steps is an option |
| DLG_GRADIENT_NO_TREEVIEW | [0x00000040] DO NOT use TreeView |
| DLG_GRADIENT_CLASS_LINEAR | [0x00000080] linear gradients are an option |
| DLG_GRADIENT_CLASS_ANGULAR | [0x00000100] angular gradients are an option |
| DLG_GRADIENT_CLASS_RECTANGULAR | [0x00000200] rectangular gradients are an option |
| DLG_GRADIENT_CLASS_ELLIPTICAL | [0x00000400] elliptical gradients are an option |
| DLG_GRADIENT_CLASS_CONICAL | [0x00000800] conical gradients are an option |
Ignored.
Ignored.