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Applies to: Subclasser object
See also:
The MouseDownChild event occurs when the subclassed window has captured mouse
input, and a mouse button is pressed whilst the mouse pointer is within a child
window of the subclassed window.
Syntax:
Private Sub object_MouseUpChild(ByVal
hWndChild
As Long, ByVal
Button
As MouseButtonConstants, ByVal
Shift
As Boolean, ByVal
Control
As Boolean, ByVal x As
Long, ByVal y As
Long, Cancel As Boolean)
The MouseDownChild event syntax has these parts:
| Part |
Description |
| object |
The name of a SubClasser object, declared using WithEvents. |
| hWndChild |
The handle of the child window in which the mouse button was pressed.
|
| Button |
A value indicating which button was clicked. Can be any one of the
following values:
- vbLeftButton
- vbMiddleButton
- vbRightButton
|
| Shift |
A boolean value indicating the state of the Shift key. A value of
True indicates that one or both Shift keys are down. |
| Control |
A boolean value indicating the state of the Control key. A value
of True indicates that one or both Control keys are down |
| x |
The x coordinate (in pixels) of the mouse pointer at the time it was
clicked, relative to the top-left corner of the window or control. |
| y |
The y coordinate (in pixels) of the mouse pointer at the time it was
clicked, relative to the top-left corner of the window or control. |
| Cancel |
A boolean value indicating whether to cancel normal processing of the
MouseDown event. Setting Cancel = True in response to a
MouseDownChild event will alter the processing of normal MouseDown events,
so that a double click will be interpreted by the control as a single
MouseDown and other MouseDown events will be cancelled. |
Remarks:
The MouseUpChild event is only raised if the subclassed window has captured
mouse input. To enable the MouseDownChild and MouseUpChild events, call TrackMouse in the MouseEnter
event. This will disable normal processing of mouse messages by child
windows, and will allow the Subclasser object to handle messages that would
normally be processed by child windows.
Refer to the example given in MouseDownChild
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