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Overview |
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Group |
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Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| Yes
| Import Library
| gdi32.lib
| Header File
| wingdi.h
| Unicode
| No
| Platform Notes
| Windows 95: 16-bit coordinates only
|
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SetBrushOrgEx
The SetBrushOrgEx function sets the brush origin that GDI assigns to the next brush an application selects into the specified device context.
BOOL SetBrushOrgEx(
HDC hdc,
| // handle of device context
| int nXOrg,
| // x-coordinate of new origin
| int nYOrg,
| // y-coordinate of new origin
| LPPOINT lppt
| // points to previous brush origin
| );
|
|
Parameters
hdc
Identifies the device context.
nXOrg
Specifies the x-coordinate, in device units, of the new brush origin. If this
value is greater than the brush width, its value is reduced using the modulus
operator (nXOrg mod brush width).
nYOrg
Specifies the y-coordinate, in device units, of the new brush origin. If this
value is greater than the brush height, its value is reduced using the modulus
operator (nYOrg mod brush height).
lppt
Points to a POINT structure that receives the previous brush origin.
This parameter can be NULL if the previous brush origin is not required.
Return Values
If the function succeeds, the return value is nonzero.
If the function fails, the return value is zero. To get extended error
information, call GetLastError.
Remarks
A brush is a bitmap that the operating system uses to paint the interiors of
filled shapes.
The brush origin is a pair of coordinates specifying the location of one pixel
in the bitmap. The default brush origin coordinates are (0,0). For horizontal
coordinates, the value 0 corresponds to the leftmost column of pixels; the
width corresponds to the rightmost column. For vertical coordinates, the value 0
corresponds to the uppermost row of pixels; the height corresponds to the
lowermost row.
The operating system automatically tracks the origin of all window-managed
device contexts and adjusts their brushes as necessary to maintain an alignment of
patterns on the surface. The brush origin that is set with this call is
relative to the upper-left corner of the client area.
An application should call SetBrushOrgEx after setting the bitmap stretching mode to HALFTONE via SetStretchBltMode. This must be done to avoid brush misalignment.
Windows NT: The operating system automatically tracks the origin of all window-managed
device contexts and adjusts their brushes as necessary to maintain an alignment
of patterns on the surface.
Windows 95: Automatic tracking of the brush origin is not supported. Applications must
use the UnrealizeObject, SetBrushOrgEx, and SelectObject functions to align the brush before using it.
See Also
GetBrushOrgEx, POINT, SelectObject, SetStretchBltMode, UnrealizeObject
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