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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
| user32.lib
| Header File
| winuser.h
| Unicode
| No
| Platform Notes
| None
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SetCursor
The SetCursor function establishes the cursor shape.
HCURSOR SetCursor(
HCURSOR hCursor
| // handle of cursor
| );
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Parameters
hCursor
Identifies the cursor. The cursor must have been created by the CreateCursor or loaded by the LoadCursor or LoadImage function. If this parameter is NULL, the cursor is removed from the screen.
Windows 95: The width and height of the cursor must be the values returned by the GetSystemMetrics function for SM_CXCURSOR and SM_CYCURSOR. In addition, the cursor bit depth
must match the bit depth of the display or the cursor must be monochrome.
Return Values
The return value is the handle of the previous cursor, if there was one.
If there was no previous cursor, the return value is NULL.
Remarks
The cursor is set only if the new cursor is different from the previous
cursor; otherwise, the function returns immediately.
The cursor is a shared resource. A window should set the cursor shape only
when the cursor is in its client area or when the window is capturing mouse input.
In systems without a mouse, the window should restore the previous cursor
before the cursor leaves the client area or before it relinquishes control to
another window.
If your application must set the cursor while it is in a window, make sure the
class cursor for the specified window's class is set to NULL. If the class
cursor is not NULL, the system restores the class cursor each time the mouse is
moved.
The cursor is not shown on the screen if the internal cursor display count is
less than zero. This occurs if the application uses the ShowCursor function to hide the cursor more times than to show the cursor.
See Also
CreateCursor, GetCursor, GetSystemMetrics, LoadCursor, LoadImage, SetCursorPos, ShowCursor
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