SWIRLDLGPARAMS

typedef struct _SWIRLDLGPARAMS 
{ 
   L_UINT uStructSize; 
   pBITMAPHANDLE pBitmap; 
   L_BOOL bZoomToFit; 
   L_INT nAngle; 
   POINT ptCenter; 
   L_UINT32 uDlgFlags; 
   LTCOMMDLGHELPCB pfnHelpCallback; 
   L_VOID  *pHelpCallBackUserData; 
} SWIRLDLGPARAMS,  * LPSWIRLDLGPARAMS ;

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

Member	Description
uStructSize	Size of this structure, in bytes. Use the sizeof operator to calculate this value.
pBitmap	Ignored.
bZoomToFit	Flag that indicates the initial zoom level for previewing the image. Possible values are:
	Value	Meaning
	TRUE	Set the initial zoom level to "Zoom to fit".
	FALSE	Set the initial zoom level to "Normal (1:1)".

nAngle	The degree of rotation. This value is in (+/-) degrees (0, 360, 720, etc.).
ptCenter	POINT structure that contains the center of the swirl. The center point must be defined inside the bitmap, or inside the region, if the bitmap has a region.
uDlgFlags	User interface flags for this dialog, which determine the layout and action of the dialog. Possible values are:
	Value	Meaning
	DLG_SWIRL_SHOW_CONTEXTHELP	[0x00000002] dialog should contain a context sensitive help icon.
	DLG_SWIRL_SHOW_APPLY	[0x00000080] Show the Apply button in the dialog. The dialog will not apply any effect unless the user presses the Apply button.
pfnHelpCallback	Ignored.
pHelpCallBackUserData	Ignored.

Help Version 19.0.2017.10.27

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