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a7e3b2e47b
There are two main issues fixed with this commit: * bytes vs. str: All file, image, and palette data are now handled as bytes. A new _binary module consolidates the hacks needed to do this across Python versions. tostring/fromstring methods have been renamed to tobytes/frombytes, but the Python 2.6/2.7 versions alias them to the old names for compatibility. Users should move to tobytes/frombytes. One other potentially-breaking change is that text data in image files (such as tags, comments) are now explicitly handled with a specific character encoding in mind. This works well with the Unicode str in Python 3, but may trip up old code expecting a straight byte-for-byte translation to a Python string. This also required a change to Gohlke's tags tests (in Tests/test_file_png.py) to expect Unicode strings from the code. * True div vs. floor div: Many division operations used the "/" operator to do floor division, which is now the "//" operator in Python 3. These were fixed. As of this commit, on the first pass, I have one failing test (improper handling of a slice object in a C module, test_imagepath.py) in Python 3, and three that that I haven't tried running yet (test_imagegl, test_imagegrab, and test_imageqt). I also haven't tested anything on Windows. All but the three skipped tests run flawlessly against Pythons 2.6 and 2.7.
108 lines
3.3 KiB
ReStructuredText
108 lines
3.3 KiB
ReStructuredText
=======================
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The PIL.ImageWin Module
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=======================
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The PIL.ImageWin Module
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=======================
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**Dib(image, size=None)** (class) [`# <#PIL.ImageWin.Dib-class>`_]
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Create a Windows bitmap with the given mode and size.
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For more information about this class, see `*The Dib
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Class* <#PIL.ImageWin.Dib-class>`_.
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**HDC(dc)** (class) [`# <#PIL.ImageWin.HDC-class>`_]
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The ImageWin module contains support to create and display images
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under Windows 95/98, NT, 2000 and later.
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For more information about this class, see `*The HDC
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Class* <#PIL.ImageWin.HDC-class>`_.
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**ImageWindow(image, title="PIL")** (class)
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[`# <#PIL.ImageWin.ImageWindow-class>`_]
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Create an image window which displays the given image.
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For more information about this class, see `*The ImageWindow
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Class* <#PIL.ImageWin.ImageWindow-class>`_.
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**Window(title="PIL", width=None, height=None)** (class)
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[`# <#PIL.ImageWin.Window-class>`_]
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Create a Window with the given title size.
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For more information about this class, see `*The Window
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Class* <#PIL.ImageWin.Window-class>`_.
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The Dib Class
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-------------
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**Dib(image, size=None)** (class) [`# <#PIL.ImageWin.Dib-class>`_]
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Create a Windows bitmap with the given mode and size. The mode can
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be one of "1", "L", "P", or "RGB". If the display requires a
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palette, this constructor creates a suitable palette and associates
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it with the image. For an "L" image, 128 greylevels are allocated.
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For an "RGB" image, a 6x6x6 colour cube is used, together with 20
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greylevels. To make sure that palettes work properly under Windows,
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you must call the **palette** method upon certain events from
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Windows.
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**\_\_init\_\_(image, size=None)**
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[`# <#PIL.ImageWin.Dib.__init__-method>`_]
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*image*
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*size*
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**expose(handle)** [`# <#PIL.ImageWin.Dib.expose-method>`_]
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*handle*
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Device context (HDC), cast to a Python integer, or a HDC or HWND
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instance. In PythonWin, you can use the **GetHandleAttrib**
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method of the **CDC** class to get a suitable handle.
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**frombytes(buffer)** [`# <#PIL.ImageWin.Dib.frombytes-method>`_]
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(For Python 2.6/2.7, this is also available as fromstring(buffer).)
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*buffer*
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A byte buffer containing display data (usually data returned
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from **tobytes**)
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**paste(im, box=None)** [`# <#PIL.ImageWin.Dib.paste-method>`_]
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*im*
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*box*
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**query\_palette(handle)**
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[`# <#PIL.ImageWin.Dib.query_palette-method>`_]
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Installs the palette associated with the image in the given device
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context.
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This method should be called upon **QUERYNEWPALETTE** and
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**PALETTECHANGED** events from Windows. If this method returns a
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non-zero value, one or more display palette entries were changed,
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and the image should be redrawn.
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*handle*
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Returns:
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**tobytes()** [`# <#PIL.ImageWin.Dib.tobytes-method>`_]
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Returns:
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The HDC Class
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-------------
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**HDC(dc)** (class) [`# <#PIL.ImageWin.HDC-class>`_]
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The **ImageWin** module contains support to create and display
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images under Windows 95/98, NT, 2000 and later.
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The ImageWindow Class
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---------------------
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**ImageWindow(image, title="PIL")** (class)
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[`# <#PIL.ImageWin.ImageWindow-class>`_]
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The Window Class
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----------------
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**Window(title="PIL", width=None, height=None)** (class)
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[`# <#PIL.ImageWin.Window-class>`_]
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