ANNPOINTOPTIONS

typedef struct tagANNPOINTOPTIONS 
{ 
   L_UINT uStructSize; 
   L_UINT uFlags; 
   L_BOOL bPointUseBitmap; 
   pBITMAPHANDLE pPointBitmap; 
   L_UINT uBitmapStructSize; 
   L_BOOL bPointBitmapTransparent; 
   COLORREF crPointBitmapTransparentColor; 
   L_INT32 nPointRadius; 
   COLORREF crPointBorderColor; 
   L_BOOL bPointTransparentFill; 
   COLORREF crPointFillColor; 
   L_BOOL bPointFixedSize; 
   L_INT32 nReserved; 
} ANNPOINTOPTIONS, *pANNPOINTOPTIONS; 

Members

uStructSize

Size of this structure. Use sizeof(ANNENCRYPTOPTIONS)

uFlags

Flag that indicates which fields are valid. Possible values are one or more (Boolean OR) of the following constants:

Value Meaning
ANNPOINT_USE_BITMAP [0x001] bPointUseBitmap field is valid.
ANNPOINT_BITMAP [0x002] pPointBitmap field is valid.
ANNPOINT_BITMAP_TRANSPARENT [0x004] bPointBitmapTransparent field is valid
ANNPOINT_BITMAP_TRANSPARENT_COLOR [0x008] crPointBitmapTransparentColor field is valid.
ANNPOINT_RADIUS [0x010] nPointRadius field is valid.
ANNPOINT_BORDER_COLOR [0x020] crPointBorderColor field is valid.
ANNPOINT_FILL_COLOR [0x040] crPointFillColor field is valid.
ANNPOINT_TRANSPARENT_FILL [0x080] bPointTransparentFill field is valid.
ANNPOINT_FIXED_SIZE [0x100] bPointFixedSize field is valid.
ANNPOINT_ALL [0x1ff] All fields are valid.

 

bPointUseBitmap

Flag that indicates whether to draw the point using the current point bitmap or as a circle. Possible values are:

Value Meaning
TRUE Draw the point using the current point bitmap.
FALSE Draw the point as a circle.

pPointBitmap

Pointer to a BITMAPHANDLE structure that gets or sets the point bitmap.

uBitmapStructSize

Size of the structure pointed to by pBitmap, for versioning.  Use sizeof(BITMAPHANDLE).

bPointBitmapTransparent

Flag that indicates whether there is a transparent color. Possible values are:

Value Meaning
TRUE If the point is drawn using a bitmap, draw with a transparent color.
FALSE If the point is drawn using a bitmap, there is no transparent color.

crPointBitmapTransparentColor

If the point is drawn as a bitmap, and bPointBitmapTransparent is TRUE, this specifies the transparent color.

nPointRadius

If the point is drawn as a circle, this specifies the radius in pixels (assuming no zooming).

crPointBorderColor

If the point is drawn as a circle, this is the outline color.

bPointTransparentFill

Flag for a point drawn as a circle that indicates whether the inside is transparent or uses the fill color. Possible values are:

Value Meaning
TRUE If the point is drawn as a circle, the inside is transparent.
FALSE If the point is drawn as a circle, the fill color is crPointFillColor.

crPointFillColor

If the point is drawn as a circle, this is the fill color.

bPointFixedSize

Flag for a point drawn as a circle that indicates whether the point is a fixed size. Possible values are:

Value Meaning
TRUE If the point is drawn as a circle, the size does not change, regardless of the zoom factor
FALSE If the point is drawn as a circle, the size changes with the zoom factor.

nReserved

Reserved for future use. Must set this field to zero.

Comments

The ANNPOINTOPTIONS structure is used with the functions L_AnnSetPointOptions and L_AnnGetPointOptions to get or set options on an annotation point object.

When calling L_AnnGetPointOptions, the uFlags field identifies which fields to retrieve. When calling L_AnnSetPointOptions, the uFlags field identifies which fields to set.

To get the bitmap of the current point object (hObject), do the following:

memset(&PointOptions, 0, sizeof(ANNPOINTOPTIONS));   
PointOptions.nSize = sizeof(ANNPOINTOPTIONS);   
PointOptions.uFlags = ANNPOINT_BITMAP;   
PointOptions. pPointBitmap = &PointBitmap;   
L_AnnGetPointOptions(hObject, &PointOptions); 

If the call to L_AnnGetPointOptions is successful, PointBitmap now contains the point bitmap. You must call L_FreeBitmap (&PointBitmap) when you are finished with the bitmap.

If the point is being drawn using a bitmap, the current default point bitmap is used. This can be changed by making the pPointBitmap field point to a valid LEAD bitmap handle, adding the ANNPOINT_BITMAP flag to the uFlags field, and calling L_AnnSetPointOptions.

If bPointBitmapTransparent is TRUE, then the point bitmap is displayed with transparency, where crPointBitmapTransparentColor is the transparent color.

If the point is not being drawn using a bitmap, it is displayed as a circle with the following properties:

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