| #define SETLINECAP 21 |
| short Control(lpDevice, SETLINECAP, lpInData, lpOutData) | |||
| LPPDEVICE lpDevice; | |||
| LPINT lpInData; | |||
| LPINT lpOutData; |
The SETLINECAP escape sets the line end cap. An end cap is that portion of a line segment that appears on either end of the segment. The cap may be square or circular; it can extend past, or remain flush with, the specified end points.
lpDevice
Points to a PDEVICE structure specifying the destination device.
lpInData
Points to a 16-bit variable that specifies the end-cap type. The variable can contain one of the following values.
| Value | Meaning |
| -1 | Line segments are drawn by using the default GDI end cap. |
| 0 | Line segments are drawn with a squared end point that does not project past the specified segment length. |
| 1 | Line segments are drawn with a rounded end point; the diameter of this semicircular arc is equal to the line width. |
| 2 | Line segments are drawn with a squared end point that projects past the specified segment length. The projection is equal to half the line width. |
lpOutData
Points to a 16-bit variable that receives the previous end-cap setting.
The return value is positive if the escape is successful. Otherwise, it is negative.
The interpretation of this escape varies with page-description languages (PDLs). Consult your PDL documentation for its exact meaning.
This escape is also known as SETENDCAP.