AT_IGGUI_FX_SPOTLIGHT

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This structure is used by the IG_gui_fx_spotlight_dlg function to produce a "spotlight" effect within the circle.

Declaration:

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typedef struct tag AT_IGGUI_FX_SPOTLIGHT { DWORD cbSize; UINT uFlags; HIGEAR hIGear; HWND hWnd; LPCHAR lpszTitle; AT_RECT rc; AT_PIXPOS nCenterX; AT_PIXPOS nCenterY; AT_DIMENSION nRadius; UINT nDarkenBy; AT_PIXEL nSmoothing; AT_ERRCOUNT nErrCount; LPFNIGGUI_FX_UPDATE lpfnUpdateProc; }AT_IGGUI_FX_SPOTLIGHT;

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typedef struct tag AT_IGGUI_FX_SPOTLIGHT
{
        DWORD cbSize;
        UINT uFlags;
        HIGEAR hIGear;
        HWND hWnd;
        LPCHAR lpszTitle;
        AT_RECT rc;
        AT_PIXPOS nCenterX;
        AT_PIXPOS nCenterY;
        AT_DIMENSION nRadius;
        UINT nDarkenBy;
        AT_PIXEL nSmoothing;
        AT_ERRCOUNT nErrCount;
        LPFNIGGUI_FX_UPDATE lpfnUpdateProc;
}AT_IGGUI_FX_SPOTLIGHT;

Members:

Name	Type	Description
cbSize	DWORD	Specifies the length, in bytes, of the structure.
uFlags	UINT	A set of bit flags you can use to initialize the dialog box.
hIGear	HIGEAR	A handle of an image.
hWnd	HWND	A handle of the window to update.
lpszTitle	LPCHAR	A dialog title.
rc	AT_RECT	An AT_RECT struct specifying the rectangular portion of the image to be processed.
nCenterX	AT_PIXPOS	The X coordinate of the circle's center to receive the spotlight effect; 0 to Width - 1.
nCenterY	AT_PIXPOS	The Y coordinate of the circle's center; 0 to Height - 1.
nRadius	AT_DIMENSION	Radius of the circle, in pixels; 2 to Height - 2.
nDarkenBy	UINT	How much to darken the remainder of the image.
nSmoothing	AT_PIXEL	0 to 255, specifying how much smoothing to apply at the edges; 0 = sharp edges, > 0 = smoother edges.
nErrCount	AT_ERRCOUNT	The number of ImageGear errors that occurred during this function call.
lpfnUpdateProc	LPFNIGGUI_FX_UPDATE	A pointer to the function that is called when the 'Apply' button is clicked.

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