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CGXControl::MouseMove

virtual BOOL MouseMove(UINT nFlags, CPoint point, UINT nHitState);

nFlags

• Indicates whether various virtual keys are down. This parameter can be any combination of the following values:
  
  
• MK_CONTROL    Set if the CTRL key is down.
  
  
• MK_LBUTTON   Set if the left mouse button is down.
  
  
• MK_MBUTTON    Set if the middle mouse button is down.
  
  
• MK_RBUTTON    Set if the right mouse button is down.

MK_SHIFT    Set if the SHIFT key is down.

point

Specifies the x- and y-coordinate of the cursor. These coordinates are always relative to the upper-left corner of the window.

nHitState

• Specifies the state of the interaction. This parameter can be any combination of the following values:
  
  
• GX_HITSTART: Mouse button has been pressed
  
  
• GX_HITMOVE: Mouse cursor has been moved.
  
  
• GX_HITEND: Mouse button has been released.
  
  
• GX_SELECT: Cells will be selected.
  
  
• GX_HITINCELL: Mouse cursor is in the cell where the mouse button has been pressed.
  
  
• GX_HITLEAVE: Mouse cursor has left the cell where the mouse button has been pressed.
  
  
• GX_CTRLPRESSED: User pressed the mouse button while pressing the CTRL key.

GX_HITCURRENTCELL: User pressed mouse in current cell.

Return Value

TRUE if the message has been processed; FALSE otherwise.

Remarks

Called when the user is moving the mouse with a clicked mouse button.

The base-class version checks if a CGXChild has the focus (ChildWithFocus). If yes, it calls its MouseMove method.

A good example is the CGXSpinEdit control. When the user clicks on an arrow-button and holds down the mouse button, the focus is set to the arrow-button and the control will continuously receive MouseMove messages. CGXControl passes the MouseMove messages to the arrow-button. This results in increasing or decreasing the value. See the implementation of CGXSpinEdit and CGXArrowButton for details.

See Also

CGXControl::ChildWithFocus

CGXControl

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