STRKFMT 

2.0     

Provides a method for retrieving or changing the attributes of specified strokes in an iedit control. This structure is used by the IE_GETFORMAT and IE_SETFORMAT messages.

typedef struct { 

     DWORD cbSize;

     UINT iesf;

     UINT iStrk;

     PENTIP tip;

     DWORD dwUser;

     DWORD dwReserved;

} STRKFMT;

Members

cbSize

Size of this structure in bytes.

iesf

Stroke format flags. Note that the first three flags cannot be combined with each other by the bitwise OR operator:

iStrk

Index of a specific stroke.

tip

PENTIP1AOCX_ structure, containing ink tip attributes.

dwUser

User data for stroke.

dwReserved

Reserved.

Comments

When sending either IE_GETFORMAT or IE_SETFORMAT, the application initializes the iesf member with bit flags, indicating:

    The strokes in the iedit control to which the IE_ messages refer.

    The attributes (color and/or width) of those strokes.

Setting the IESF_STROKE bit flag in iesf limits action to the single stroke identified in iStrk. Setting IESF_SELECTION references all selected strokes. Setting IESF_ALL references all strokes in the control. These flags are mutually exclusive and cannot be combined.

The application must also set the bit flags IESF_TIPCOLOR or IESF_TIPWIDTH in the iesf member of the structure. These bit flags identify the stroke attribute to which the IE_ messages refer. For convenience, the defined value IESF_PENTIP combines IESF_TIPCOLOR and IESF_TIPWIDTH to identify both color and width.

With these bit flags, an application can alter stroke color and width at the same time or alter only one attribute while leaving the other unchanged.

Sending an IE_GETFORMAT message to the control produces the following results:

    If the requested strokes have the same color and width, the returned STRKFMT contains the common color and width in the rgb and bwidth members of its PENTIP1AOCX_ structure. The return value from IE_GETFORMAT is 0.

    If the requested strokes do not all share the same attribute, the returned STRKFMT contains the attribute of the last stroke in the group. The return value from IE_GETFORMAT contains the bit flags IESF_TIPCOLOR and/or IESF_TIPWIDTH to indicate the attribute in which the strokes differ.

Before using STRKFMT, an application must initialize cbSize with sizeof( STRKFMT ).

See Also