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comparison mercurial/win32.py @ 32664:2d56e6d23be7

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win32: add a method to enable ANSI color code processing on Windows 10 SetConsoleMode() fails with an invalid parameter error if given this option prior to Windows 10, so indicate that to the caller instead of doing explicit version checks.
author Matt Harbison <matt_harbison@yahoo.com>
date Mon, 22 May 2017 22:00:56 -0400
parents 5861bdbeb9a3
children 4c3d9ee87382
comparison
equal deleted inserted replaced
32663:5277d6faabb4 32664:2d56e6d23be7
129 ('dwCursorPosition', _COORD), 129 ('dwCursorPosition', _COORD),
130 ('wAttributes', _WORD), 130 ('wAttributes', _WORD),
131 ('srWindow', _SMALL_RECT), 131 ('srWindow', _SMALL_RECT),
132 ('dwMaximumWindowSize', _COORD)] 132 ('dwMaximumWindowSize', _COORD)]
133 133
134 _STD_OUTPUT_HANDLE = _DWORD(-11).value
134 _STD_ERROR_HANDLE = _DWORD(-12).value 135 _STD_ERROR_HANDLE = _DWORD(-12).value
135 136
136 # CreateToolhelp32Snapshot, Process32First, Process32Next 137 # CreateToolhelp32Snapshot, Process32First, Process32Next
137 _TH32CS_SNAPPROCESS = 0x00000002 138 _TH32CS_SNAPPROCESS = 0x00000002
138 _MAX_PATH = 260 139 _MAX_PATH = 260
199 _kernel32.GetCurrentProcessId.restype = _DWORD 200 _kernel32.GetCurrentProcessId.restype = _DWORD
200 201
201 _SIGNAL_HANDLER = ctypes.WINFUNCTYPE(_BOOL, _DWORD) 202 _SIGNAL_HANDLER = ctypes.WINFUNCTYPE(_BOOL, _DWORD)
202 _kernel32.SetConsoleCtrlHandler.argtypes = [_SIGNAL_HANDLER, _BOOL] 203 _kernel32.SetConsoleCtrlHandler.argtypes = [_SIGNAL_HANDLER, _BOOL]
203 _kernel32.SetConsoleCtrlHandler.restype = _BOOL 204 _kernel32.SetConsoleCtrlHandler.restype = _BOOL
205
206 _kernel32.SetConsoleMode.argtypes = [_HANDLE, _DWORD]
207 _kernel32.SetConsoleMode.restype = _BOOL
208
209 _kernel32.GetConsoleMode.argtypes = [_HANDLE, ctypes.c_void_p]
210 _kernel32.GetConsoleMode.restype = _BOOL
204 211
205 _kernel32.GetStdHandle.argtypes = [_DWORD] 212 _kernel32.GetStdHandle.argtypes = [_DWORD]
206 _kernel32.GetStdHandle.restype = _HANDLE 213 _kernel32.GetStdHandle.restype = _HANDLE
207 214
208 _kernel32.GetConsoleScreenBufferInfo.argtypes = [_HANDLE, ctypes.c_void_p] 215 _kernel32.GetConsoleScreenBufferInfo.argtypes = [_HANDLE, ctypes.c_void_p]
370 return width, height 377 return width, height
371 width = csbi.srWindow.Right - csbi.srWindow.Left # don't '+ 1' 378 width = csbi.srWindow.Right - csbi.srWindow.Left # don't '+ 1'
372 height = csbi.srWindow.Bottom - csbi.srWindow.Top + 1 379 height = csbi.srWindow.Bottom - csbi.srWindow.Top + 1
373 return width, height 380 return width, height
374 381
382 def enablevtmode():
383 '''Enable virtual terminal mode for the associated console. Return True if
384 enabled, else False.'''
385
386 ENABLE_VIRTUAL_TERMINAL_PROCESSING = 0x4
387
388 handle = _kernel32.GetStdHandle(_STD_OUTPUT_HANDLE) # don't close the handle
389 if handle == _INVALID_HANDLE_VALUE:
390 return False
391
392 mode = _DWORD(0)
393
394 if not _kernel32.GetConsoleMode(handle, ctypes.byref(mode)):
395 return False
396
397 if (mode.value & ENABLE_VIRTUAL_TERMINAL_PROCESSING) == 0:
398 mode.value |= ENABLE_VIRTUAL_TERMINAL_PROCESSING
399
400 if not _kernel32.SetConsoleMode(handle, mode):
401 return False
402
403 return True
404
375 def _1stchild(pid): 405 def _1stchild(pid):
376 '''return the 1st found child of the given pid 406 '''return the 1st found child of the given pid
377 407
378 None is returned when no child is found''' 408 None is returned when no child is found'''
379 pe = _tagPROCESSENTRY32() 409 pe = _tagPROCESSENTRY32()