def create_window__create_borderless_window(func_map):
# Use an inner window, so that we can use the func_map for accessing other functions
# that are OS specific.
# Call out to the answer:
# http://stackoverflow.com/questions/39731497/create-window-without-titlebar-with-resizable-border-and-without-bogus-6px-whit/39735058
# However, the WM_CREATE just doesn't work right - it causes windows to
# be automatically closed, even when 0 is explicitly returned.
def window__create_borderless_window(class_name, title, message_handler, callback_map,
show_on_taskbar=True, always_on_top=False):
margins = MARGINS()
margins.cxLeftWidth = 0
margins.cxRightWidth = 0
margins.cyTopHeight = 0
margins.cyBottomHeight = 0
style_flags = {
'popup', 'visible',
# 'layered', This causes the windows to not show up.
'transparent'
}
if always_on_top:
style_flags.add('topmost')
if not show_on_taskbar:
style_flags.add('tool-window')
def hit_test(hwnd, msg, wparam, lparam):
# We don't have a border, so don't worry about
# border cursor checks.
# pt = wintypes.POINT()
# x in low word, y in the high word
# pt.x = wintypes.DWORD(lparam & 0xffff)
# pt.y = wintypes.DWORD((lparam >> 16) & 0xffff)
# windll.user32.ScreenToClient(hwnd, byref(pt))
# rc = wintypes.RECT()
# windll.user32.GetClientRect(hwnd, byref(rc))
return HTCLIENT
callback_map[WM_NCACTIVATE] = lambda hwnd, msg, wparam, lparam: 0
callback_map[WM_NCCALCSIZE] = lambda hwnd, msg, wparam, lparam: lparam == 0 and 0 or False
callback_map[WM_NCHITTEST] = hit_test
hwnd = func_map['window__create_display_window'](class_name, title, message_handler, style_flags)
# windll.dwmapi.DwmExtendFrameIntoClientArea(hwnd, byref(margins))
return hwnd
return window__create_borderless_window
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