+class wxSingleInstanceChecker
+{
+public:
+ // like Create() but no error checking (dangerous!)
+ wxSingleInstanceChecker(const wxString& name,
+ const wxString& path = wxPyEmptyString);
+
+ // default ctor, use Create() after it
+ %name(wxPreSingleInstanceChecker) wxSingleInstanceChecker();
+
+ ~wxSingleInstanceChecker();
+
+
+ // name must be given and be as unique as possible, it is used as the mutex
+ // name under Win32 and the lock file name under Unix -
+ // wxTheApp->GetAppName() may be a good value for this parameter
+ //
+ // path is optional and is ignored under Win32 and used as the directory to
+ // create the lock file in under Unix (default is wxGetHomeDir())
+ //
+ // returns FALSE if initialization failed, it doesn't mean that another
+ // instance is running - use IsAnotherRunning() to check it
+ bool Create(const wxString& name, const wxString& path = wxPyEmptyString);
+
+ // is another copy of this program already running?
+ bool IsAnotherRunning() const;
+};
+
+//----------------------------------------------------------------------
+
+%{
+#ifdef __WXMSW__
+#include <wx/msw/private.h>
+#include <wx/dynload.h>
+#endif
+%}
+
+
+%inline %{
+
+void wxDrawWindowOnDC(wxWindow* window, const wxDC& dc, int method)
+{
+#ifdef __WXMSW__
+
+ switch (method)
+ {
+ case 1:
+ // This one only partially works. Appears to be an undocumented
+ // "standard" convention that not all widgets adhear to. For
+ // example, for some widgets backgrounds or non-client areas may
+ // not be painted.
+ ::SendMessage(GetHwndOf(window), WM_PAINT, (long)GetHdcOf(dc), 0);
+ break;
+
+ case 2:
+ // This one works much better, except for on XP. On Win2k nearly
+ // all widgets and their children are captured correctly[**]. On
+ // XP with Themes activated most native widgets draw only
+ // partially, if at all. Without themes it works just like on
+ // Win2k.
+ //
+ // ** For example the radio buttons in a wxRadioBox are not its
+ // children by default, but you can capture it via the panel
+ // instead, or change RADIOBTN_PARENT_IS_RADIOBOX in radiobox.cpp.
+ ::SendMessage(GetHwndOf(window), WM_PRINT, (long)GetHdcOf(dc),
+ PRF_CLIENT | PRF_NONCLIENT | PRF_CHILDREN |
+ PRF_ERASEBKGND | PRF_OWNED );
+ break;
+
+ case 3:
+ // This one is only defined in the latest SDK and is only
+ // available on XP. MSDN says it is similar to sending WM_PRINT
+ // so I expect that it will work similar to the above. Since it
+ // is avaialble only on XP, it can't be compiled like this and
+ // will have to be loaded dynamically.
+ // //::PrintWindow(GetHwndOf(window), GetHdcOf(dc), 0); //break;
+
+ // fall through
+
+ case 4:
+ // Use PrintWindow if available, or fallback to WM_PRINT
+ // otherwise. Unfortunately using PrintWindow is even worse than
+ // WM_PRINT. For most native widgets nothing is drawn to the dc
+ // at all, with or without Themes.
+ typedef BOOL (WINAPI *PrintWindow_t)(HWND, HDC, UINT);
+ static bool s_triedToLoad = false;
+ static PrintWindow_t pfnPrintWindow = NULL;
+ if ( !s_triedToLoad )
+ {
+
+ s_triedToLoad = true;
+ wxDynamicLibrary dllUser32(_T("user32.dll"));
+ if ( dllUser32.IsLoaded() )
+ {
+ wxLogNull nolog; // Don't report errors here
+ pfnPrintWindow = (PrintWindow_t)dllUser32.GetSymbol(_T("PrintWindow"));
+ }
+ }
+ if (pfnPrintWindow)
+ {
+ printf("Using PrintWindow\n");
+ pfnPrintWindow(GetHwndOf(window), GetHdcOf(dc), 0);
+ }
+ else
+ {
+ printf("Using WM_PRINT\n");
+ ::SendMessage(GetHwndOf(window), WM_PRINT, (long)GetHdcOf(dc),
+ PRF_CLIENT | PRF_NONCLIENT | PRF_CHILDREN | PRF_ERASEBKGND | PRF_OWNED );
+ }
+ }
+#endif
+}
+
+%}
+//----------------------------------------------------------------------
projects / wxWidgets.git / blobdiff