我发现下面的代码应该以编程方式更改控制台字体大小。我在Windows 10上。
但是,无论我调整什么值,我似乎无法控制字体大小,并且由于某种原因,当我运行此脚本时打开的控制台非常广泛。
我不知道ctypes是如何工作的 - 我只想从Python里面修改控制台字体的大小。
有任何实际的工作方案吗?
import ctypes
LF_FACESIZE = 32
STD_OUTPUT_HANDLE = -11
class COORD(ctypes.Structure):
_fields_ = [("X", ctypes.c_short), ("Y", ctypes.c_short)]
class CONSOLE_FONT_INFOEX(ctypes.Structure):
_fields_ = [("cbSize", ctypes.c_ulong),
("nFont", ctypes.c_ulong),
("dwFontSize", COORD),
("FontFamily", ctypes.c_uint),
("FontWeight", ctypes.c_uint),
("FaceName", ctypes.c_wchar * LF_FACESIZE)]
font = CONSOLE_FONT_INFOEX()
font.cbSize = ctypes.sizeof(CONSOLE_FONT_INFOEX)
font.nFont = 12
font.dwFontSize.X = 11
font.dwFontSize.Y = 18
font.FontFamily = 54
font.FontWeight = 400
font.FaceName = "Lucida Console"
handle = ctypes.windll.kernel32.GetStdHandle(STD_OUTPUT_HANDLE)
ctypes.windll.kernel32.SetCurrentConsoleFontEx(
handle, ctypes.c_long(False), ctypes.pointer(font))
print("Foo")
我想首先指出:
ctypes页面(也在上面的URL中列出):[Python 3.Docs]: ctypes - A foreign function library for Python
我改变了你的代码。
code.朋友:
#!/usr/bin/env python
import sys
from ctypes import POINTER, WinDLL, Structure, sizeof, byref
from ctypes.wintypes import BOOL, SHORT, WCHAR, UINT, ULONG, DWORD, HANDLE
LF_FACESIZE = 32
STD_OUTPUT_HANDLE = -11
class COORD(Structure):
_fields_ = [
("X", SHORT),
("Y", SHORT),
]
class CONSOLE_FONT_INFOEX(Structure):
_fields_ = [
("cbSize", ULONG),
("nFont", DWORD),
("dwFontSize", COORD),
("FontFamily", UINT),
("FontWeight", UINT),
("FaceName", WCHAR * LF_FACESIZE)
]
kernel32_dll = WinDLL("kernel32.dll")
get_last_error_func = kernel32_dll.GetLastError
get_last_error_func.argtypes = []
get_last_error_func.restype = DWORD
get_std_handle_func = kernel32_dll.GetStdHandle
get_std_handle_func.argtypes = [DWORD]
get_std_handle_func.restype = HANDLE
get_current_console_font_ex_func = kernel32_dll.GetCurrentConsoleFontEx
get_current_console_font_ex_func.argtypes = [HANDLE, BOOL, POINTER(CONSOLE_FONT_INFOEX)]
get_current_console_font_ex_func.restype = BOOL
set_current_console_font_ex_func = kernel32_dll.SetCurrentConsoleFontEx
set_current_console_font_ex_func.argtypes = [HANDLE, BOOL, POINTER(CONSOLE_FONT_INFOEX)]
set_current_console_font_ex_func.restype = BOOL
def main():
# Get stdout handle
stdout = get_std_handle_func(STD_OUTPUT_HANDLE)
if not stdout:
print("{:s} error: {:d}".format(get_std_handle_func.__name__, get_last_error_func()))
return
# Get current font characteristics
font = CONSOLE_FONT_INFOEX()
font.cbSize = sizeof(CONSOLE_FONT_INFOEX)
res = get_current_console_font_ex_func(stdout, False, byref(font))
if not res:
print("{:s} error: {:d}".format(get_current_console_font_ex_func.__name__, get_last_error_func()))
return
# Display font information
print("Console information for {:}".format(font))
for field_name, _ in font._fields_:
field_data = getattr(font, field_name)
if field_name == "dwFontSize":
print(" {:s}: {{X: {:d}, Y: {:d}}}".format(field_name, field_data.X, field_data.Y))
else:
print(" {:s}: {:}".format(field_name, field_data))
while 1:
try:
height = int(input("\nEnter font height (invalid to exit): "))
except:
break
# Alter font height
font.dwFontSize.X = 10 # Changing X has no effect (at least on my machine)
font.dwFontSize.Y = height
# Apply changes
res = set_current_console_font_ex_func(stdout, False, byref(font))
if not res:
print("{:s} error: {:d}".format(set_current_console_font_ex_func.__name__, get_last_error_func()))
return
print("OMG! The window changed :)")
# Get current font characteristics again and display font size
res = get_current_console_font_ex_func(stdout, False, byref(font))
if not res:
print("{:s} error: {:d}".format(get_current_console_font_ex_func.__name__, get_last_error_func()))
return
print("\nNew sizes X: {:d}, Y: {:d}".format(font.dwFontSize.X, font.dwFontSize.Y))
if __name__ == "__main__":
print("Python {:s} on {:s}\n".format(sys.version, sys.platform))
main()
笔记:
ctypes.wintypes
常量(引用标准ctypes类型)(为代码提供类似Win的风格)COORD.X
似乎被忽略了。但它在设置COORD.Y
时自动设置(接近COORD.Y // 2
的值 - 可能是为了保持纵横比)。在我的机器上(Win 10 x64),默认值为16. Yo可能希望在最后将其设置回来,以避免让控制台处于“挑战”状态(显然,Win调整cmd窗口大小) )与字体大小同步):
这不是一个纯粹的python问题,但涵盖了Windows API。
看看CONSOLE_FONT_INFOEX结构的文档。在它上面有一个COORD成员,用于每个角色的宽度和高度。
要更改控制台字体大小,可以将这些属性指定为正确的值:
font.dwFontSize.X = 11
font.dwFontSize.Y = 18