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Overview |
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Group |
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Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| No
| Import Library
| user32.lib
| Header File
| winuser.h
| Unicode
| No
| Platform Notes
| None
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DragDetect
[Now Supported on Windows NT]
The DragDetect function captures the mouse and tracks its movement until the user releases
the left button, presses the ESC key, or moves the mouse outside the "drag rectangle" around the specified
point. The width and height of the drag rectangle are specified by the SM_CXDRAG
and SM_CYDRAG values returned by the GetSystemMetrics function.
BOOL DragDetect(
Parameters
hwnd
Handle to the window receiving mouse input.
pt
Initial position of the mouse, in screen coordinates. The function determines
the coordinates of the drag rectangle by using this point.
Return Values
If the user moved the mouse outside of the drag rectangle while holding the
left button down, the return value is nonzero.
If the user did not move the mouse outside of the drag rectangle while holding
the left button down, the return value is zero.
Remarks
The system metrics for the drag rectangle are configurable, allowing for
larger or smaller drag rectangles.
See Also
GetSystemMetrics
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