def GetHwndIcon(hWnd):
"""
Get a wx.Icon from a window through its hwnd window handle
"""
hIcon = DWORD()
res = SendMessageTimeout(hWnd, WM_GETICON, ICON_SMALL, 0, SMTO_ABORTIFHUNG,
1000, byref(hIcon))
if res == 0:
hIcon.value = 0
if hIcon.value < 10:
hIcon.value = GetClassLong(hWnd, GCL_HICONSM)
if hIcon.value == 0:
res = SendMessageTimeout(hWnd, WM_GETICON, ICON_BIG, 0,
SMTO_ABORTIFHUNG, 1000, byref(hIcon))
if res == 0:
hIcon.value = 0
if hIcon.value < 10:
hIcon.value = GetClassLong(hWnd, GCL_HICON)
if hIcon.value != 0:
icon = wx.NullIcon
value = hIcon.value
# ugly fix for "OverflowError: long int too large to convert to int"
if value & 0x80000000:
value = -((value ^ 0xffffffff) + 1)
icon.SetHandle(value)
icon.SetSize((16, 16))
return icon
else:
return None
def PySendMessageTimeout(hWnd,
msg,
wParam=0,
lParam=0,
flags=SMTO_BLOCK | SMTO_ABORTIFHUNG,
timeout=2000):
resultData = DWORD()
res = SendMessageTimeout(hWnd, msg, wParam, lParam, flags, timeout,
byref(resultData))
if not res:
raise WinError()
return resultData.value