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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: int == 16 bits
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GetTextAlign
The GetTextAlign function retrieves the text-alignment setting for the specified device
context.
UINT GetTextAlign(
HDC hdc
| // handle of device context
| );
|
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Parameters
hdc
Identifies the device context.
Return Values
If the function succeeds, the return value is the status of the text-alignment
flags.
If the function fails, the return value is GDI_ERROR. To get extended error information, call GetLastError.
For a list of status return values, see the Remarks section. The return value
is a combination of one or more of the following values:
Value
| Meaning
| TA_BASELINE
| The reference point is on the base line of the text.
| TA_BOTTOM
| The reference point is on the bottom edge of the bounding rectangle.
| TA_TOP
| The reference point is on the top edge of the bounding rectangle.
| TA_CENTER
| The reference point is aligned horizontally with the center of the bounding
rectangle.
| TA_LEFT
| The reference point is on the left edge of the bounding rectangle.
| TA_RIGHT
| The reference point is on the right edge of the bounding rectangle.
| TA_RTLREADING
| Windows 95 only: The text is laid out in right to left reading order, as opposed to the
default left to right order. This only applies when the font selected into the device
context is either Hebrew or Arabic.
| TA_NOUPDATECP
| The current position is not updated after each text output call.
| TA_UPDATECP
| The current position is updated after each text output call.
|
When the current font has a vertical default base line (as with Kanji), the
following values are used instead of TA_BASELINE and TA_CENTER:
Value
| Meaning
| VTA_BASELINE
| The reference point is on the base line of the text.
| VTA_CENTER
| The reference point is aligned vertically with the center of the bounding
rectangle.
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Remarks
The bounding rectangle is a rectangle bounding all of the character cells in a
string of text. Its dimensions can be obtained by calling the GetTextExtentPoint32 function.
The text-alignment flags determine how the TextOut and ExtTextOut functions align a string of text in relation to the string's reference point
provided to TextOut or ExtTextOut.
The text-alignment flags are not necessarily single bit flags and may be equal
to zero. The flags must be examined in groups of related flags, as shown in
the following list:
TA_LEFT, TA_RIGHT, and TA_CENTER
TA_BOTTOM, TA_TOP, and TA_BASELINE
TA_NOUPDATECP and TA_UPDATECP
If the current font has a vertical default base line, the related flags are as
shown in the following list:
TA_LEFT, TA_RIGHT, and VTA_BASELINE
TA_BOTTOM, TA_TOP, and VTA_CENTER
TA_NOUPDATECP and TA_UPDATECP
To verify that a particular flag is set in the return value of this function,
the application must perform the following steps:
- Apply the bitwise OR operator to the flag and its related flags.
- Apply the bitwise AND operator to the result and the return value.
- Test for the equality of this result and the flag.
See Also
ExtTextOut, GetTextExtentPoint32, SetTextAlign, TextOut
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