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cefpython/cefpython/var/SaveImage.pyx at v31.2 · pythonthings/cefpython · GitHub
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#
#
Browser.SaveImage()
#
cpdef py_bool SaveImage(
self
, py_string filePath,
str
imageType
=
"
bitmap
"
):
assert
IsThread(TID_UI), (
"
Browser.SaveImage(): this method should only be called
"
"
on the UI thread
"
)
cdef
tuple
size
=
self
.GetSize(PET_VIEW)
cdef
int
width, height
if
size:
(width, height)
=
size
else
:
return
False
#
The charFilePath pointer is tied to the lifetime
#
of the filePath string. strlen() is a C function.
cdef
char
*
charFilePath
=
filePath
cdef
int
filePathLength
=
strlen(charFilePath)
cdef wchar_t
*
widecharFilePath
=
<
wchar_t
*
>
calloc(
filePathLength, wchar_t_size)
CharToWidechar(charFilePath, widecharFilePath, filePathLength)
cdef
void
*
bits
cdef BITMAPINFOHEADER bitmapInfoHeader
bitmapInfoHeader.biSize
=
sizeof(BITMAPINFOHEADER)
bitmapInfoHeader.biWidth
=
width
bitmapInfoHeader.biHeight
=
-
height
#
minus means top-down bitmap
bitmapInfoHeader.biPlanes
=
1
bitmapInfoHeader.biBitCount
=
32
bitmapInfoHeader.biCompression
=
BI_RGB
#
no compression
bitmapInfoHeader.biSizeImage
=
0
bitmapInfoHeader.biXPelsPerMeter
=
1
bitmapInfoHeader.biYPelsPerMeter
=
1
bitmapInfoHeader.biClrUsed
=
0
bitmapInfoHeader.biClrImportant
=
0
cdef BITMAPINFO
*
bitmapInfo
bitmapInfo
=
<
BITMAPINFO
*
>
calloc(
1
, sizeof(BITMAPINFO))
bitmapInfo.bmiHeader
=
bitmapInfoHeader
cdef HDC screen_dc
=
GetDC(
NULL
)
cdef HBITMAP bitmap
=
CreateDIBSection(
screen_dc, bitmapInfo, DIB_RGB_COLORS,
&
bits,
NULL
,
0
)
ReleaseDC(
NULL
, screen_dc)
cdef PaintBuffer
if
bitmap:
#
cefclient_win.cpp > UIT_RunGetImageTest
#
TODO...
free(widecharFilePath)
free(bitmapInfo)
return
True
#
#
windows.pxd:
#
ctypedef
struct
BITMAPINFOHEADER:
DWORD biSize
LONG biWidth
LONG biHeight
WORD biPlanes
WORD biBitCount
DWORD biCompression
DWORD biSizeImage
LONG biXPelsPerMeter
LONG biYPelsPerMeter
DWORD biClrUsed
DWORD biClrImportant
ctypedef
struct
RGBQUAD:
pass
ctypedef
struct
BITMAPINFO:
BITMAPINFOHEADER bmiHeader
RGBQUAD bmiColors[
1
]
cdef DWORD BI_RGB
cdef HDC GetDC(HWND hWnd)
cdef HBITMAP CreateDIBSection(
HDC hdc,
BITMAPINFO
*
pbmi,
UINT iUsage,
void
**
ppvBits,
HANDLE hSection,
DWORD dwOffset)
cdef UINT DIB_RGB_COLORS
cdef
int
ReleaseDC(HWND hWnd,HDC hDC)
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