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