get_rgbaT_get_rgbaGetRgbaGetRgbaget_rgba (算子名称)
名称
get_rgbaT_get_rgbaGetRgbaGetRgbaget_rgba — Get the current color in RGBA-coding.
参数签名
def get_rgba(window_handle: HHandle) -> Tuple[Sequence[int], Sequence[int], Sequence[int], Sequence[int]]
描述
get_rgbaget_rgbaGetRgbaGetRgbaGetRgbaget_rgba returns the output colors or gray values, respectively, for
the output window. They are defined by the four color components red, green,
blue and alpha.
The values returned by get_rgbaget_rgbaGetRgbaGetRgbaGetRgbaget_rgba can be set with
set_rgbaset_rgbaSetRgbaSetRgbaSetRgbaset_rgba.
注意
get_rgbaget_rgbaGetRgbaGetRgbaGetRgbaget_rgba depends on the library libcanvas, which might not be
available on embedded systems.
运行信息
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Processed without parallelization.
参数表
WindowHandleWindowHandleWindowHandleWindowHandlewindowHandlewindow_handle (input_control) window → HWindow, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)
Window handle.
RedRedRedRedredred (output_control) integer-array → HTupleSequence[int]HTupleHtuple (integer) (int / long) (Hlong) (Hlong)
The current color's red value.
GreenGreenGreenGreengreengreen (output_control) integer-array → HTupleSequence[int]HTupleHtuple (integer) (int / long) (Hlong) (Hlong)
The current color's green value.
BlueBlueBlueBlueblueblue (output_control) integer-array → HTupleSequence[int]HTupleHtuple (integer) (int / long) (Hlong) (Hlong)
The current color's blue value.
AlphaAlphaAlphaAlphaalphaalpha (output_control) integer-array → HTupleSequence[int]HTupleHtuple (integer) (int / long) (Hlong) (Hlong)
The current color's alpha value.
结果
get_rgbaget_rgbaGetRgbaGetRgbaGetRgbaget_rgba returns 2 (
H_MSG_TRUE)
if the window is valid.
Otherwise an exception is raised.
可能的后置算子
set_rgbaset_rgbaSetRgbaSetRgbaSetRgbaset_rgba,
disp_objdisp_objDispObjDispObjDispObjdisp_obj
参考其它
set_rgbaset_rgbaSetRgbaSetRgbaSetRgbaset_rgba
模块
Foundation