def set_clipboard_image(self, img_format, img_data):
image_formats = {}
if COMPRESSED_IMAGES:
#first save it as binary compressed data:
fmt_name = LPCSTR(img_format.upper().encode("latin1")+b"\0") #ie: "PNG"
fmt = RegisterClipboardFormatA(fmt_name)
if fmt:
buf = create_string_buffer(img_data)
pbuf = cast(byref(buf), c_void_p)
l = len(img_data)
data_handle = GlobalAlloc(GMEM_MOVEABLE, l)
if not data_handle:
log.error("Error: failed to allocate %i bytes of global memory", l)
return True
data = GlobalLock(data_handle)
if not data:
log("failed to lock data handle %#x (may try again)", data_handle)
return False
log("got data handle lock %#x for %i bytes of '%s' data", data, l, img_format)
try:
memmove(data, pbuf, l)
finally:
GlobalUnlock(data)
image_formats[fmt] = data_handle
#also convert it to a bitmap:
from PIL import Image
buf = BytesIO(img_data)
img = Image.open(buf)
if img.mode!="RGBA":
img = img.convert("RGBA")
rgb_data = img.tobytes("raw", "BGRA")
w, h = img.size
log("set_clipboard_image(%s, %s) image size=%s, BGR buffer=%i bytes",
img_format, ellipsizer(data), img.size, len(rgb_data))
header = BITMAPINFOHEADER()
memset(byref(header), 0, sizeof(BITMAPINFOHEADER ))
header.biSize = sizeof(BITMAPINFOHEADER)
header.biWidth = w
header.biHeight = -h
header.biPlanes = 1
header.biBitCount = 32
header.biCompression = BI_RGB
header.biSizeImage = 0
header.biXPelsPerMeter = 10
header.biYPelsPerMeter = 10
bitmapinfo = BITMAPINFO()
bitmapinfo.bmiColors = 0
memmove(byref(bitmapinfo.bmiHeader), byref(header), sizeof(BITMAPINFOHEADER))
rgb_buf = create_string_buffer(rgb_data)
pbuf = cast(byref(rgb_buf), c_void_p)
hdc = GetDC(None)
CBM_INIT = 4
bitmap = CreateDIBitmap(hdc, byref(header), CBM_INIT, pbuf, byref(bitmapinfo), win32con.DIB_RGB_COLORS)
ReleaseDC(None, hdc)
image_formats[win32con.CF_BITMAP] = bitmap
self.do_set_clipboard_image(image_formats)
def format_name(fmt):
name = CLIPBOARD_FORMATS.get(fmt)
if name:
return name
ulen = 128
buf = LPCSTR(b" " * ulen)
r = GetClipboardFormatNameA(fmt, buf, ulen - 1)
if r == 0:
return str(fmt)
return (buf.value[:r]).decode("latin1")
def got_clipboard_lock():
if COMPRESSED_IMAGES:
fmt_name = LPCSTR(img_format.upper().encode("latin1") +
b"\0") #ie: "PNG"
fmt = RegisterClipboardFormatA(fmt_name)
if fmt:
data_handle = GetClipboardData(fmt)
if data_handle:
size = GlobalSize(data_handle)
data = GlobalLock(data_handle)
log("GetClipboardData(%s)=%#x size=%s, data=%#x",
img_format.upper(), data_handle, size, data)
if data and size:
try:
cdata = (c_char * size).from_address(data)
finally:
GlobalUnlock(data)
got_image(bytes(cdata), False)
return True
data_handle = GetClipboardData(win32con.CF_DIBV5)
log("CF_BITMAP=%s", data_handle)
data = GlobalLock(data_handle)
if not data:
log("failed to lock data handle %#x (may try again)",
data_handle)
return False
try:
header = cast(data, PBITMAPV5HEADER).contents
offset = header.bV5Size + header.bV5ClrUsed * 4
w, h = header.bV5Width, abs(header.bV5Height)
bits = header.bV5BitCount
log(
"offset=%s, width=%i, height=%i, compression=%s", offset,
w, h,
BI_FORMATS.get(header.bV5Compression,
header.bV5Compression))
log("planes=%i, bitcount=%i", header.bV5Planes, bits)
log("colorspace=%s",
COLOR_PROFILES.get(header.bV5CSType, header.bV5CSType))
#if header.bV5Compression in (BI_JPEG, BI_PNG):
# pass
if header.bV5Compression != BI_RGB:
errback(
"cannot handle %s compression yet" % BI_FORMATS.get(
header.bV5Compression, header.bV5Compression))
return True
if bits == 24:
save_format = "RGB"
rgb_format = "BGR"
stride = roundup(w * 3, 4)
elif bits == 32:
save_format = "RGBA"
rgb_format = "BGRA"
stride = w * 4
else:
errback(
"cannot handle image data with %i bits per pixel yet" %
bits)
return True
img_size = stride * h
rgb_data = (c_char * img_size).from_address(data + offset)
from PIL import Image, ImageOps
img = Image.frombytes(save_format, (w, h), rgb_data, "raw",
rgb_format, stride, 1)
if header.bV5Height > 0:
img = ImageOps.flip(img)
buf = BytesIO()
img.save(buf, format=save_format)
data = buf.getvalue()
buf.close()
got_image(data, True)
return True
finally:
GlobalUnlock(data)