我有一个表单,我已删除标题栏但保留了边框(请参阅this answer)。
在上面的回答中,声明需要将FormBorderStyle
设置为Sizable
或SizableToolWindow
,并且为了阻止表单大小,您需要捕获WM_NCHITTEST事件。唯一的问题是,这样做会使不引发正常的Form_MouseEnter
或Form_MouseLeave
事件。
这有什么解决方法吗?
我的代码:
Protected Overrides Sub WndProc(ByRef message As Message)
If message.Msg = &H84 Then 'WM_NCHITTEST
Me.Focus() 'Focus the form when it receives a click.
Return
End If
MyBase.WndProc(message)
End Sub
Private Sub PanelForm_MouseLeave(sender As Object, e As System.EventArgs) Handles PanelForm.MouseLeave
PlaceOnScreen(False) 'Placed a breakpoint here, it won't execute.
End Sub
答案 0 :(得分:3)
这只是一个错误,WM_NCHITTEST的返回值现在是0.这意味着"鼠标无处可及#34;。所以许多东西停止工作,比如激活和聚焦窗口和MouseEnter事件。你必须返回1(又名HTCLIENT),意思是"它在客户区":
case class DeptWithEmployees(department: Department, employees: Seq[Employee])
val result3: DeptWithEmployees = db.run(q.result).map { results =>
results.groupBy(_._1).map { // assumption that _._1 is your department id
case (dept, grp) => DeptWithEmployees(dept, grp.map(_._2))
}
}