LOGPEN

LOGPEN;

用於指定鋼筆類型。

可取值為：（翻譯不強大，還是看原文吧）

PS_SOLID Creates a solid pen.

PS_DASH Creates a dashed pen. (Valid only when the pen width is 1.)

PS_DOT Creates a dotted pen. (Valid only when the pen width is 1.)

PS_DASHDOT Creates a pen with alternating dashes and dots. (Valid only when the pen width is 1.)

PS_DASHDOTDOT Creates a pen with alternating dashes and double dots. (Valid only when the pen width is 1.)

PS_NULL Creates a null pen.

PS_INSIDEFRAME Creates a pen that draws a line inside the frame of closed shapes produced by GDI output functions that specify a bounding rectangle (for example, the Ellipse, Rectangle, RoundRect, Pie, and Chord member functions). When this style is used with GDI output functions that do not specify a bounding rectangle (for example, the LineTo member function), the drawing area of the pen is not limited by a frame.

If a pen has the PS_INSIDEFRAME style and a color that does not match a color in the logical color table, the pen is drawn with a dithered color. The PS_SOLID pen style cannot be used to create a pen with a dithered color. The PS_INSIDEFRAME style is identical to PS_SOLID if the pen width is less than or equal to 1.

When the PS_INSIDEFRAME style is used with GDI objects produced by functions other than Ellipse, Rectangle, and RoundRect, the line may not be completely inside the specified frame.

指定鋼筆像素寬度。

如果值為0，則默認 ^[1]  設置為1像素。

指定顏色。

注意：COLORREF自低位往高位，每字節表示R、G、B、unused相關信息。

The y value in the POINT structure for the lopnWidth member is not used.