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OLEDragOver Event

Description

Occurs when one component is dragged over another.

Syntax

Public Event OLEDragOver( _
    ByVal Data As DataObject, _
    ByRef Effect As Long, _
    ByVal Button As Integer, _
    ByVal Shift As Integer, _
    ByVal x As Long, _
    ByVal y As Long, _
    ByVal state As Integer _
)

Parameters

  • Data: A DataObject object containing formats that the source will provide and, in addition, possibly the data for those formats. If no data is contained in the DataObject, it is provided when the control calls the GetData method.

  • Effect: A long integer initially set by the source object identifying all effects it supports. This parameter must be correctly set by the target component during this event. The value of Effect is determined by logically Or'ing together all active effects (as listed in Settings). The target component should check these effects and other parameters to determine which actions are appropriate for it, and then set this parameter to one of the allowable effects (as specified by the source) to specify which actions will be performed if the user drops the selection on the component. The possible values are listed in Settings.

  • Button: An integer which acts as a bit field corresponding to the state of a mouse button when it is depressed. The left button is bit 0, the right button is bit 1, and the middle button is bit 2. These bits correspond to the values 1, 2, and 4, respectively. It indicates the state of the mouse buttons; some, all, or none of these three bits can be set, indicating that some, all, or none of the buttons are depressed.

  • Shift: An integer which acts as a bit field corresponding to the state of the shift, ctrl, and alt keys when they are depressed. The shift key is bit 0, the ctrl key is bit 1, and the alt key is bit 2. These bits correspond to the values 1, 2, and 4, respectively. The shift parameter indicates the state of these keys; some, all, or none of the bits can be set, indicating that some, all, or none of the keys are depressed. For example, if both the ctrl and alt keys are depressed, the value of shift would be 6.

  • x: A number that specifies the current horizontal (x) and vertical (y) position of the mouse pointer within the target form or control. The x and y values are always expressed in terms of the coordinate system set by the ScaleHeight, ScaleWidth, ScaleLeft, and ScaleTop properties of the object.

  • y: A number that specifies the current horizontal (x) and vertical (y) position of the mouse pointer within the target form or control. The x and y values are always expressed in terms of the coordinate system set by the ScaleHeight, ScaleWidth, ScaleLeft, and ScaleTop properties of the object.

  • state: An integer that corresponds to the transition state of the control being dragged in relation to a target form or control.

See Also

Example

OLEDragDrop Sample

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