EXTLOGPEN structure (wingdi.h)

The EXTLOGPEN structure defines the pen style, width, and brush attributes for an extended pen. This structure is used by the GetObject function when it retrieves a description of a pen that was created when an application called the ExtCreatePen function.

Syntax

typedef struct tagEXTLOGPEN {
  DWORD     elpPenStyle;
  DWORD     elpWidth;
  UINT      elpBrushStyle;
  COLORREF  elpColor;
  ULONG_PTR elpHatch;
  DWORD     elpNumEntries;
  DWORD     elpStyleEntry[1];
} EXTLOGPEN, *PEXTLOGPEN, *NPEXTLOGPEN, *LPEXTLOGPEN;

Members

elpPenStyle

A combination of pen type, style, end cap style, and join style. The values from each category can be retrieved by using a bitwise AND operator with the appropriate mask.

The elpPenStyle member masked with PS_TYPE_MASK has one of the following pen type values.

The elpPenStyle member masked with PS_STYLE_MASK has one of the following pen styles values:

The following category applies only to PS_GEOMETRIC pens. The elpPenStyle member masked with PS_ENDCAP_MASK has one of the following end cap values.

The following category applies only to PS_GEOMETRIC pens. The elpPenStyle member masked with PS_JOIN_MASK has one of the following join values.

elpWidth

The width of the pen. If the elpPenStyle member is PS_GEOMETRIC, this value is the width of the line in logical units. Otherwise, the lines are cosmetic and this value is 1, which indicates a line with a width of one pixel.

elpBrushStyle

The brush style of the pen. The elpBrushStyle member value can be one of the following.

elpColor

If elpBrushStyle is BS_SOLID or BS_HATCHED, elpColor specifies the color in which the pen is to be drawn. For BS_HATCHED, the SetBkMode and SetBkColor functions determine the background color.

If elpBrushStyle is BS_HOLLOW or BS_PATTERN, elpColor is ignored.

If elpBrushStyle is BS_DIBPATTERN or BS_DIBPATTERNPT, the low-order word of elpColor specifies whether the bmiColors member of the BITMAPINFO structure contain explicit RGB values or indices into the currently realized logical palette. The elpColor value must be one of the following.

The RGB macro is used to generate a COLORREF structure.

elpHatch

If elpBrushStyle is BS_PATTERN, elpHatch is a handle to the bitmap that defines the pattern.

If elpBrushStyle is BS_SOLID or BS_HOLLOW, elpHatch is ignored.

If elpBrushStyle is BS_DIBPATTERN, the elpHatch member is a handle to a packed DIB. To obtain this handle, an application calls the GlobalAlloc function with GMEM_MOVEABLE (or LocalAlloc with LMEM_MOVEABLE) to allocate a block of memory and then fills the memory with the packed DIB. A packed DIB consists of a BITMAPINFO structure immediately followed by the array of bytes that define the pixels of the bitmap.

If elpBrushStyle is BS_DIBPATTERNPT, the elpHatch member is a pointer to a packed DIB. The pointer derives from the memory block created by LocalAlloc with LMEM_FIXED set or by GlobalAlloc with GMEM_FIXED set, or it is the pointer returned by a call like LocalLock (handle_to_the_dib). A packed DIB consists of a BITMAPINFO structure immediately followed by the array of bytes that define the pixels of the bitmap.

If elpBrushStyle is BS_HATCHED, the elpHatch member specifies the orientation of the lines used to create the hatch. It can be one of the following values.

elpNumEntries

The number of entries in the style array in the elpStyleEntry member. This value is zero if elpPenStyle does not specify PS_USERSTYLE.

elpStyleEntry[1]

A user-supplied style array. The array is specified with a finite length, but it is used as if it repeated indefinitely. The first entry in the array specifies the length of the first dash. The second entry specifies the length of the first gap. Thereafter, lengths of dashes and gaps alternate.

If elpWidth specifies geometric lines, the lengths are in logical units. Otherwise, the lines are cosmetic and lengths are in device units.

Requirements

See also

BITMAPINFO

COLORREF

ExtCreatePen

GetObject

Pen Structures

Pens Overview

RGB

SetBkColor

SetBkMode