mfc - 将应用程序移动到 MFC 中的第二个监视器

Question

我正在 VS2008 VC++.net 中开发一个应用程序

我想将应用程序移动到辅助监视器。不是通过使用鼠标单击和拖动。

通过按按钮或任何快捷键是否有像 MoveToMonitor 这样的功能。然后它应该移动到辅助监视器。

Answer 1

您应该能够调用GetMonitorInfo并将您的窗口移至其中。

有关详细信息，请参阅此处的“ MFC 示例使用 GetSystemMetrics EnumDisplayMonitors 和 GetMonitorInfo 支持多显示器”。

Using the code

CMointor is a basic MFC class that allows you to safely use the multiple-monitor API on any Win32 platform. 

There are three classes in this library:

CMonitors represents the collection of monitors currently attached to the system and wraps the EnumDisplayMonitors API function.

  Collapse Copy Code
//CMonitors' interface
CMonitor GetMonitor( const int index ) const;
int GetCount() const; 

//returns the monitor closest to the specified item
static CMonitor GetNearestMonitor( const LPRECT lprc );
static CMonitor GetNearestMonitor( const POINT pt );
static CMonitor GetNearestMonitor( const CWnd* pWnd );

//is the specificed item visible on any monitor
static BOOL IsOnScreen( const POINT pt );
static BOOL IsOnScreen( const CWnd* pWnd );
static BOOL IsOnScreen( const LPRECT lprc );

//returns the rectangle encompassing all monitors
static void GetVirtualDesktopRect( LPRECT lprc );

//determines whether the given handle is a valid monitor handle
static BOOL IsMonitor( const HMONITOR hMonitor );
static CMonitor GetPrimaryMonitor();
static BOOL AllMonitorsShareDisplayFormat();

static int GetMonitorCount();
CMonitor is a wrapper around an HMONITOR handle (returned from EnumDisplayMonitors) and the GetMonitorInfo function. With CMonitor you can get at the characteristics of a given monitor.

  Collapse Copy Code
//The interface of CMonitor            
void Attach( const HMONITOR hMonitor );
HMONITOR Detach();

void ClipRectToMonitor( LPRECT lprc, 
                        const BOOL UseWorkAreaRect = FALSE ) const;
void CenterRectToMonitor( LPRECT lprc, 
                          const BOOL UseWorkAreaRect = FALSE ) const;
void CenterWindowToMonitor( CWnd* const pWnd,
                            const BOOL UseWorkAreaRect = FALSE ) const;

//creates a device context for the monitor - the client is responsible for 
// DeleteDC
HDC CreateDC() const;

void GetMonitorRect( LPRECT lprc ) const;
//the work area is the monitor rect minus the start bar
void GetWorkAreaRect( LPRECT lprc ) const;

void GetName( CString& string ) const;

int GetBitsPerPixel() const;

//determines if the specified item on the monitor
BOOL IsOnMonitor( const POINT pt ) const;
BOOL IsOnMonitor( const CWnd* pWnd ) const;
BOOL IsOnMonitor( const LPRECT lprc ) const;

BOOL IsPrimaryMonitor() const;
BOOL IsMonitor() const;

CMonitorDC is a CDC derived class that represents a monitor specific device context. I haven't really gone to far with this class but it seemed like a logical part of the library.  

Known Limitations

CMonitor and CMonitors rely on the assumption that a monitor handle does not change. This has proved to be a safe assumption empirically but isn't nessecarily a guarantee.

如果您在 Window 7 上，那么显示器之间的移动窗口是Windows-Arrow

Answer 2

You use MoveWindow (or SetWindowPos, though you don't need the extra things it can do in this case) to move the Window to the part of the desktop shown on the monitor in question. You can find that with (among other possibilities) EnumDisplayMonitors, which will tell you the rectangle associated with each monitor.