Web22 de jun. de 2014 · 我们可以在类向导那里添加OnLButtonDown消息响应函数,它有两个参数,其中第二个参数是CPoint类型,CPoint类表示一个点,也就是说,当鼠标左键按下 … Web30 de jan. de 2013 · Multiple selection of tree control items using rubber band selection. Drag-n-Drop of multiple selected items on a target. Specifying whether an item can be considered as a valid target for a drop operation. Restricting renaming feature for items, if needed. Specifying whether an item is a valid target for a drop operation.
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Web24 de fev. de 2004 · It might be a little tricky actually. I think you can do it by deriving from the CTreeCtrl class and overriding on OnRButtonDown or OnRButtonUp which ever is appropriate and for the control to make the selection. Maybe something like this... CMyTreeCtrl::OnRButtonDown(UINT nFlags, CPoint point ) … Web25 de out. de 2004 · I checked out your project on Win2000 SP4, VC++ 6.0 SP5. It is impressive work. I have one doubt though-In this demo, if you click an item in the sidebar area, the corresponding menu event goes off. tsui woo terrace
Why doesnt OnContextMenu () work in my situation? but OnRButtonDown …
Web12 de abr. de 2014 · 1、解释一下鼠标左键单击的两个参数OnLButtonDown(UINT nFlags, CPoint point) : nFlags 表示控制键状态(包括 ctrl,shift,鼠标左、中、右 共5个键的状 … Web9 de nov. de 2024 · Nov 10, 2024 at 16:42. Add a comment. 4. To add to Nawaf answer: The point in time when the evenhandlers are fired is also different (at least when using mouse). onPointerDown fires when the mouse button is pressed down. onClick waits for press AND release of the mouse button. Share. Web17 de nov. de 2006 · I am trying to do some test to see where the user "right-clicked" for the context menu, but there is something screwy. I tried left-clicking, right-clicking and for some reason, the point passed into OnLButtonDown(...) and OnContextMenu(...) are different. I an cliking in the same spot without moving the mouse: On left button : X = 591, y = 45 On … tsui wo house