VB如何實作滑鼠懸停在程式外時顯示懸停提示資訊？
uj5u.com熱心網友回復：
什么叫做“程式外”？？？
你“自創”的這一個名詞，有誰能明白你的意思的！
uj5u.com熱心網友回復：
要不，你就用“定時器”功能，不斷的檢測（并且記錄）滑鼠指標位置，如果保持了一定的時間“位置不變”（或變化在限定區域范圍內），就可認為“懸停”了。
uj5u.com熱心網友回復：
SetCaptureThe SetCapture function sets the mouse capture to the specified window belonging to the current thread. Once a window has captured the mouse, all mouse input is directed to that window, regardless of whether the cursor is within the borders of that window. Only one window at a time can capture the mouse.
If the mouse cursor is over a window created by another thread, the system will direct mouse input to the specified window only if a mouse button is down.
HWND SetCapture(
HWND hWnd // handle of window to receive mouse capture
);
Parameters
hWnd
Handle to the window in the current thread that is to capture the mouse.
Return Values
The return value is the handle of the window that had previously captured the mouse. If there is no such window, the return value is NULL.
Remarks
Only the foreground window can capture the mouse. When a background window attempts to do so, the window receives messages only for mouse events that occur when the cursor hot spot is within the visible portion of the window. Also, even if the foreground window has captured the mouse, the user can still click another window, bringing it to the foreground.
When the window no longer requires all mouse input, the thread that created the window should call the ReleaseCapture function to release the mouse.
This function cannot be used to capture mouse input meant for another process.
Windows 95: Calling SetCapture causes the window that is losing the mouse capture to receive a WM_CAPTURECHANGED message.
QuickInfo
Windows NT: Requires version 3.1 or later.
Windows: Requires Windows 95 or later.
Windows CE: Requires version 1.0 or later.
Header: Declared in winuser.h.
Import Library: Use user32.lib.
See Also
Mouse Input Overview, Mouse Input Functions, GetCapture, ReleaseCapture, WM_CAPTURECHANGED
uj5u.com熱心網友回復：
用timer控制元件，檢測區域，超過了就提示，就是你所謂的程式外那個邊界線區域uj5u.com熱心網友回復：
ToolTip屬性設定一下就可以了。轉載請註明出處，本文鏈接：https://www.uj5u.com/gongcheng/48481.html
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