Consolidate the Win32 init and cleanup code in to one place so

it's easier to keep track of it.


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10312 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

FL/win32.H

@@ -101,6 +101,8 @@ extern FL_EXPORT void fl_save_dc( HWND w, HDC dc);
 
 inline Window fl_xid(const Fl_Window* w) { Fl_X *temp = Fl_X::i(w); return temp ? temp->xid : 0; }
 
+extern FL_EXPORT void fl_open_display();
+
 #else
 FL_EXPORT Window fl_xid_(const Fl_Window* w);
 #define fl_xid(w) fl_xid_(w)

src/Fl.cxx

@@ -590,45 +590,6 @@ int Fl::run() {
   return 0;
 }
 
-#ifdef WIN32
-
-// Function to initialize COM/OLE for usage. This must be done only once.
-// We define a flag to register whether we called it:
-static char oleInitialized = 0;
-
-// This calls the Windows function OleInitialize() exactly once.
-void fl_OleInitialize() {
-  if (!oleInitialized) {
-    OleInitialize(0L);
-    oleInitialized = 1;
-  }
-}
-
-// This calls the Windows function OleUninitialize() only, if
-// OleInitialize has been called before.
-void fl_OleUninitialize() {
-  if (oleInitialized) {
-    OleUninitialize();
-    oleInitialized = 0;
-  }
-}
-
-class Fl_Win32_At_Exit {
-public:
-  Fl_Win32_At_Exit() { }
-  ~Fl_Win32_At_Exit() {
-    fl_free_fonts();        // do some WIN32 cleanup
-    fl_cleanup_pens();
-    fl_OleUninitialize();
-    fl_brush_action(1);
-    fl_cleanup_dc_list();
-  }
-};
-static Fl_Win32_At_Exit win32_at_exit;
-#endif
-
-
-
 /**
   Waits until "something happens" and then returns.  Call this
   repeatedly to "run" your program.  You can also check what happened

src/Fl_Native_File_Chooser_WIN32.cxx

@@ -34,14 +34,13 @@ LPCWSTR utf8towchar(const char *in); //MG
 char *wchartoutf8(LPCWSTR in);  //MG
 
 #include <FL/Fl_Native_File_Chooser.H>
+#include <FL/x.H>
 
 #define LCURLY_CHR	'{'
 #define RCURLY_CHR	'}'
 #define LBRACKET_CHR	'['
 #define RBRACKET_CHR	']'
 
-void fl_OleInitialize();	// in Fl.cxx (Windows only)
-
 // STATIC: PRINT WINDOWS 'DOUBLE NULL' STRING (DEBUG)
 #ifdef DEBUG
 static void dnullprint(char *wp) {
@@ -465,7 +464,7 @@ int CALLBACK Fl_Native_File_Chooser::Dir_CB(HWND win, UINT msg, LPARAM param, LP
 // SHOW DIRECTORY BROWSER
 int Fl_Native_File_Chooser::showdir() {
   // initialize OLE only once
-  fl_OleInitialize();		// init needed by BIF_USENEWUI
+  fl_open_display();		// init needed by BIF_USENEWUI
   ClearBINF();
   clear_pathnames();
   // PARENT WINDOW

src/Fl_win32.cxx

@@ -125,21 +125,15 @@ typedef BOOL (WINAPI* flTypeImmSetCompositionWindow)(HIMC, LPCOMPOSITIONFORM);
 static flTypeImmSetCompositionWindow flImmSetCompositionWindow = 0;
 typedef BOOL (WINAPI* flTypeImmReleaseContext)(HWND, HIMC);
 static flTypeImmReleaseContext flImmReleaseContext = 0;
-typedef BOOL (WINAPI* flTypeImmIsIME)(HKL);
-static flTypeImmIsIME flImmIsIME = 0;
 
-static HMODULE get_imm_module() {
-  if (!s_imm_module) {
-    s_imm_module = LoadLibrary("IMM32.DLL");
-    if (!s_imm_module)
-      Fl::fatal("FLTK Lib Error: IMM32.DLL file not found!\n\n"
-        "Please check your input method manager library accessibility.");
-    flImmGetContext = (flTypeImmGetContext)GetProcAddress(s_imm_module, "ImmGetContext");
-    flImmSetCompositionWindow = (flTypeImmSetCompositionWindow)GetProcAddress(s_imm_module, "ImmSetCompositionWindow");
-    flImmReleaseContext = (flTypeImmReleaseContext)GetProcAddress(s_imm_module, "ImmReleaseContext");
-    flImmIsIME = (flTypeImmIsIME)GetProcAddress(s_imm_module, "ImmIsIME");
-  }
-  return s_imm_module;
+static void get_imm_module() {
+  s_imm_module = LoadLibrary("IMM32.DLL");
+  if (!s_imm_module)
+    Fl::fatal("FLTK Lib Error: IMM32.DLL file not found!\n\n"
+      "Please check your input method manager library accessibility.");
+  flImmGetContext = (flTypeImmGetContext)GetProcAddress(s_imm_module, "ImmGetContext");
+  flImmSetCompositionWindow = (flTypeImmSetCompositionWindow)GetProcAddress(s_imm_module, "ImmSetCompositionWindow");
+  flImmReleaseContext = (flTypeImmReleaseContext)GetProcAddress(s_imm_module, "ImmReleaseContext");
 }
 
 // USE_TRACK_MOUSE - define NO_TRACK_MOUSE if you don't have
@@ -257,7 +251,9 @@ void fl_set_spot(int font, int size, int X, int Y, int W, int H, Fl_Window *win)
   Fl_Window* tw = win;
   while (tw->parent()) tw = tw->window(); // find top level window
 
-  get_imm_module();
+  if (!tw->shown())
+    return;
+
   HIMC himc = flImmGetContext(fl_xid(tw));
 
   if (himc) {
@@ -438,6 +434,32 @@ int fl_ready() {
   return get_wsock_mod() ? s_wsock_select(0,&fdt[0],&fdt[1],&fdt[2],&t) : 0;
 }
 
+void fl_open_display() {
+  static char beenHereDoneThat = 0;
+
+  if (beenHereDoneThat)
+    return;
+
+  beenHereDoneThat = 1;
+
+  OleInitialize(0L);
+
+  get_imm_module();
+}
+
+class Fl_Win32_At_Exit {
+public:
+  Fl_Win32_At_Exit() { }
+  ~Fl_Win32_At_Exit() {
+    fl_free_fonts();        // do some WIN32 cleanup
+    fl_cleanup_pens();
+    OleUninitialize();
+    fl_brush_action(1);
+    fl_cleanup_dc_list();
+  }
+};
+static Fl_Win32_At_Exit win32_at_exit;
+
 ////////////////////////////////////////////////////////////////
 
 int Fl::x()
@@ -1649,6 +1671,8 @@ int fl_disable_transient_for; // secret method of removing TRANSIENT_FOR
 Fl_X* Fl_X::make(Fl_Window* w) {
   Fl_Group::current(0); // get rid of very common user bug: forgot end()
 
+  fl_open_display();
+
   // if the window is a subwindow and our parent is not mapped yet, we
   // mark this window visible, so that mapping the parent at a later
   // point in time will call this function again to finally map the subwindow.
@@ -1852,7 +1876,6 @@ Fl_X* Fl_X::make(Fl_Window* w) {
 	     (Fl::grab() || (styleEx & WS_EX_TOOLWINDOW)) ? SW_SHOWNOACTIVATE : SW_SHOWNORMAL);
 
   // Register all windows for potential drag'n'drop operations
-  fl_OleInitialize();
   RegisterDragDrop(x->xid, flIDropTarget);
 
   return x;