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Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| Yes
| Import Library
| user32.lib
| Header File
| winuser.h
| Unicode
| No
| Platform Notes
| None
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GetDC
The GetDC function retrieves a handle of a display device context (DC) for the client
area of the specified window. The display device context can be used in
subsequent GDI functions to draw in the client area of the window.
This function retrieves a common, class, or private device context depending
on the class style specified for the specified window. For common device
contexts, GetDC assigns default attributes to the device context each time it is retrieved.
For class and private device contexts, GetDC leaves the previously assigned attributes unchanged.
HDC GetDC(
HWND hWnd
| // handle of window
| );
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Parameters
hWnd
Identifies the window whose device context is to be retrieved.
Return Values
If the function succeeds, the return value identifies the device context for
the given window's client area.
If the function fails, the return value is NULL.
Remarks
After painting with a common device context, the ReleaseDC function must be called to release the device context. Class and private
device contexts do not have to be released. The number of device contexts is
limited only by available memory.
See Also
ReleaseDC, GetWindowDC
Related Links
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Unix Manual Pages
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