Module PIL.ImageWin

Module Summary:

class Dib:
    def __init__(self, image, size=None)
Create a Windows bitmap with the given mode and size.
class HDC:
    def __init__(self)
The ImageWin module contains support to create and display images under Windows 95/98, NT, 2000 and later.

Classes

The Dib Class

Dib()

Create a Windows bitmap with the given mode and size. The mode can be one of "1", "L", "P", or "RGB". If the display requires a palette, this constructor creates a suitable palette and associates it with the image. For an "L" image, 128 greylevels are allocated. For an "RGB" image, a 6x6x6 colour cube is used, together with 20 greylevels. To make sure that palettes work properly under Windows, you must call the palette method upon certain events from Windows.

Constructor:

Dib(image, size=None)

Create Windows bitmap.

Parameters:

image -- Either a PIL image, or a mode string. If a mode string is used, a size must also be given. The mode can be one of "1", "L", "P", or "RGB".

size -- If the first argument is a mode string, this defines the size of the image.

Method Summary:

expose(handle)
Copy the bitmap contents to a device context.
paste(im, box=None)
Paste a PIL image into the bitmap image.
query_palette(dc)
Installs the palette associated with the image in the given device context.

expose

expose(handle)

Copy the bitmap contents to a device context.

Parameters:

handle -- Device context (HDC), cast to a Python integer, or a HDC or HWND instance. In PythonWin, you can use the GetHandleAttrib method of the CDC class to get a suitable handle.

paste

paste(im, box=None)

Paste a PIL image into the bitmap image.

Parameters:

im -- A PIL image. The size must match the target region. If the mode does not match, the image is converted to the mode of the bitmap image.

box -- A 4-tuple defining the left, upper, right, and lower pixel coordinate. If None is given instead of a tuple, all of the image is assumed.

query_palette

query_palette(dc)

Installs the palette associated with the image in the given device context.

This method should be called upon QUERYNEWPALETTE and PALETTECHANGED events from Windows. If this method returns a non-zero value, one or more display palette entries were changed, and the image should be redrawn.

Parameters:

dc -- Device context (HDC), cast to a Python integer, or an HDC or HWND instance.

Returns:

A true value if one or more entries were changed (this indicates that the image should be redrawn).

The HDC Class

HDC()

The ImageWin module contains support to create and display images under Windows 95/98, NT, 2000 and later.