Add command-line option /top

New: Override via command-line option `/top` to enable always on top. Use `/top 0` or `/top false` to disable.

README.md

@@ -72,6 +72,7 @@ Basic on-the-fly image processing is provided - allowing adjusting typical param
     * No change:
       * F12: toggles span all monitors, or not.
       * SHF+F12: toggles always on top.
+        * New: Override via commandline option `/top` to enable always on top. Use `/top 0` or `/top false` to disable.
     * CTRL+F12: toggle to next monitor. Now if there are more than 2 monitors (assuming horizontal row), this hotkey toggles in this cycle: monitor #1, #2, ...  #last, all but last `[XX ]`, all but 1st `[ XX]`, and back.
  * F1 with CTRL, SHF or ALT combos can now be used as hotkeys for other commands; only F1 shows the help info.
 

src/JPEGView/JPEGView.cpp

@@ -69,6 +69,20 @@ static CString ParseCommandLineForStartupFile(LPCTSTR sCommandLine) {
 	return sStartupFile;
 }
 
+static void ParseCommandLineForAlwaysOnTop(LPCTSTR sCommandLine) {
+	LPCTSTR sTop = Helpers::stristr(sCommandLine, _T("/top"));
+	if (sTop == NULL) {
+		return;
+	}
+	CString strState(sTop + _tcslen(_T("/top")));
+	strState.Trim();
+	bool bAlwaysOnTop = true;
+	if ( (strState.GetLength() > 0)
+		&& ((strState.CompareNoCase(_T("false")) == 0) || (strState.Compare(_T("0")) == 0)) )
+		bAlwaysOnTop = false;
+	CSettingsProvider::This().SetWindowAlwaysOnTopOnStartup(bAlwaysOnTop);
+}
+
 static double ParseCommandLineForAutostart(LPCTSTR sCommandLine) {
 	LPCTSTR sAutoStart = Helpers::stristr(sCommandLine, _T("/slideshow"));
 	if (sAutoStart == NULL) {
@@ -205,6 +219,7 @@ int WINAPI _tWinMain(HINSTANCE hInstance, HINSTANCE /*hPrevInstance*/, LPTSTR lp
 
 	CString sStartupFile = ParseCommandLineForStartupFile(lpstrCmdLine);
 	//Allow selection of image later, then auto-start slideshow
+	ParseCommandLineForAlwaysOnTop(lpstrCmdLine);
 	double dAutostartSlideShow = ParseCommandLineForAutostart(lpstrCmdLine);
 	bool bForceFullScreen = ParseCommandLineForFullScreen(lpstrCmdLine);
 	bool bAutoExit = ParseCommandLineForAutoExit(lpstrCmdLine);

src/JPEGView/MainDlg.cpp

@@ -2414,6 +2414,7 @@ void CMainDlg::ExecuteCommand(int nCommand) {
 			break;
 		case IDM_ALWAYS_ON_TOP:
 			ToggleAlwaysOnTop();
+			SetToast(m_bAlwaysOnTop? _T("Always on Top"): _T("Not on Top"));
 
 			break;
 		case IDM_FIT_WINDOW_TO_IMAGE:

src/JPEGView/SettingsProvider.h

@@ -133,6 +133,7 @@ class CSettingsProvider
 	LPCTSTR CustomIniEditor() { return m_sIniEditor; }
 	LPCTSTR GPSMapProvider() { return m_sGPSMapProvider; }
 	bool WindowAlwaysOnTopOnStartup() { return m_bWindowAlwaysOnTopOnStartup; }
+	void SetWindowAlwaysOnTopOnStartup(bool bAlwaysOnTop) { m_bWindowAlwaysOnTopOnStartup = bAlwaysOnTop; }
 	static double ParseTimeInterval(CString &strInterval);
 
 	// Returns if a user INI file exists