def BringHwndToFront(hWnd, invalidate=True):
if hWnd is None:
return
hWnd = GetAncestor(hWnd, GA_ROOT)
if not IsWindow(hWnd):
return
# If the window is in a minimized state, restore now
if IsIconic(hWnd):
ShowWindow(hWnd, SW_RESTORE)
BringWindowToTop(hWnd)
UpdateWindow(hWnd)
# Check to see if we are the foreground thread
foregroundHwnd = GetForegroundWindow()
foregroundThreadID = GetWindowThreadProcessId(foregroundHwnd, None)
ourThreadID = GetCurrentThreadId()
# If not, attach our thread's 'input' to the foreground thread's
if foregroundThreadID != ourThreadID:
AttachThreadInput(foregroundThreadID, ourThreadID, True)
ShowWindow(hWnd, SW_SHOWNA)
BringWindowToTop(hWnd)
# Force our window to redraw
if invalidate:
InvalidateRect(hWnd, None, True)
if foregroundThreadID != ourThreadID:
AttachThreadInput(foregroundThreadID, ourThreadID, False)
def HighlightWindow(hWnd):
"""
Draws an inverted rectangle around a window to inform the user about
the currently selected window.
"""
UpdateWindow(hWnd)
# Retrieve location of window on-screen.
rect = RECT()
GetWindowRect(hWnd, byref(rect))
# Get a device context that allows us to write anywhere within the window.
hdc = GetWindowDC(hWnd)
# Save the original device context attributes.
SaveDC(hdc)
# To guarantee that the frame will be visible, tell Windows to draw the
# frame using the inverse screen color.
SetROP2(hdc, R2_NOT)
# Create a pen that is three times the width of a nonsizeable border. The
# color will not be used to draw the frame, so its value could be
# anything. PS_INSIDEFRAME tells windows that the entire frame should be
# enclosed within the window.
hpen = CreatePen(PS_INSIDEFRAME, _H_BORDERWIDTH, _H_BORDERCOLOUR)
SelectObject(hdc, hpen)
# We must select a NULL brush so that the contents of the window will not
# be overwritten.
SelectObject(hdc, GetStockObject(NULL_BRUSH))
# Draw the frame. Because the device context is relative to the window,
# the top-left corner is (0, 0) and the lower right corner is (width of
# window, height of window).
Rectangle(hdc, 0, 0, rect.right - rect.left, rect.bottom - rect.top)
# Restore the original attributes and release the device context.
RestoreDC(hdc, -1)
ReleaseDC(hWnd, hdc)
# We can destroy the pen only AFTER we have restored the DC because the DC
# must have valid objects selected into it at all times.
DeleteObject(hpen)