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changeset 20704:7d274a089d08 draft

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-Codechange: [Win32] Get the result string of an IME input directly without a trip through the window messaging system.
author Michael Lutz <michi@icosahedron.de>
date Sun, 21 Jul 2013 22:54:46 +0200
parents 0cc7d9dfe800
children 3b9077f142b8
files projects/openttd_vs100.vcxproj projects/openttd_vs100.vcxproj.in projects/openttd_vs80.vcproj projects/openttd_vs80.vcproj.in projects/openttd_vs90.vcproj projects/openttd_vs90.vcproj.in src/console_gui.cpp src/gfx_func.h src/textbuf.cpp src/textbuf_type.h src/video/win32_v.cpp src/window.cpp src/window_gui.h
diffstat 13 files changed, 116 insertions(+), 34 deletions(-) [+]
line wrap: on
line diff
--- a/projects/openttd_vs100.vcxproj
+++ b/projects/openttd_vs100.vcxproj
@@ -131,7 +131,7 @@
       <Culture>0x0809</Culture>
     </ResourceCompile>
     <Link>
-      <AdditionalDependencies>winmm.lib;ws2_32.lib;libpng.lib;zlibstat.lib;lzo2.lib;liblzma.lib;libfreetype2.lib;icuuc.lib;icuin.lib;icudt.lib;icule.lib;iculx.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>winmm.lib;ws2_32.lib;imm32.lib;libpng.lib;zlibstat.lib;lzo2.lib;liblzma.lib;libfreetype2.lib;icuuc.lib;icuin.lib;icudt.lib;icule.lib;iculx.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <IgnoreSpecificDefaultLibraries>%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -176,7 +176,7 @@
       <Culture>0x0809</Culture>
     </ResourceCompile>
     <Link>
-      <AdditionalDependencies>winmm.lib;ws2_32.lib;libpng.lib;zlibstat.lib;lzo2.lib;liblzma.lib;libfreetype2.lib;icuuc.lib;icuin.lib;icudt.lib;icule.lib;iculx.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>winmm.lib;ws2_32.lib;imm32.lib;libpng.lib;zlibstat.lib;lzo2.lib;liblzma.lib;libfreetype2.lib;icuuc.lib;icuin.lib;icudt.lib;icule.lib;iculx.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <IgnoreSpecificDefaultLibraries>LIBCMT.lib;%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -233,7 +233,7 @@
       <Culture>0x0809</Culture>
     </ResourceCompile>
     <Link>
-      <AdditionalDependencies>winmm.lib;ws2_32.lib;libpng.lib;zlibstat.lib;lzo2.lib;liblzma.lib;libfreetype2.lib;icuuc.lib;icuin.lib;icudt.lib;icule.lib;iculx.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>winmm.lib;ws2_32.lib;imm32.lib;libpng.lib;zlibstat.lib;lzo2.lib;liblzma.lib;libfreetype2.lib;icuuc.lib;icuin.lib;icudt.lib;icule.lib;iculx.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <IgnoreSpecificDefaultLibraries>%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -280,7 +280,7 @@
       <Culture>0x0809</Culture>
     </ResourceCompile>
     <Link>
-      <AdditionalDependencies>winmm.lib;ws2_32.lib;libpng.lib;zlibstat.lib;lzo2.lib;liblzma.lib;libfreetype2.lib;icuuc.lib;icuin.lib;icudt.lib;icule.lib;iculx.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>winmm.lib;ws2_32.lib;imm32.lib;libpng.lib;zlibstat.lib;lzo2.lib;liblzma.lib;libfreetype2.lib;icuuc.lib;icuin.lib;icudt.lib;icule.lib;iculx.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <IgnoreSpecificDefaultLibraries>LIBCMT.lib;%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
       <GenerateDebugInformation>true</GenerateDebugInformation>
--- a/projects/openttd_vs100.vcxproj.in
+++ b/projects/openttd_vs100.vcxproj.in
@@ -131,7 +131,7 @@
       <Culture>0x0809</Culture>
     </ResourceCompile>
     <Link>
-      <AdditionalDependencies>winmm.lib;ws2_32.lib;libpng.lib;zlibstat.lib;lzo2.lib;liblzma.lib;libfreetype2.lib;icuuc.lib;icuin.lib;icudt.lib;icule.lib;iculx.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>winmm.lib;ws2_32.lib;imm32.lib;libpng.lib;zlibstat.lib;lzo2.lib;liblzma.lib;libfreetype2.lib;icuuc.lib;icuin.lib;icudt.lib;icule.lib;iculx.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <IgnoreSpecificDefaultLibraries>%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -176,7 +176,7 @@
       <Culture>0x0809</Culture>
     </ResourceCompile>
     <Link>
-      <AdditionalDependencies>winmm.lib;ws2_32.lib;libpng.lib;zlibstat.lib;lzo2.lib;liblzma.lib;libfreetype2.lib;icuuc.lib;icuin.lib;icudt.lib;icule.lib;iculx.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>winmm.lib;ws2_32.lib;imm32.lib;libpng.lib;zlibstat.lib;lzo2.lib;liblzma.lib;libfreetype2.lib;icuuc.lib;icuin.lib;icudt.lib;icule.lib;iculx.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <IgnoreSpecificDefaultLibraries>LIBCMT.lib;%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -233,7 +233,7 @@
       <Culture>0x0809</Culture>
     </ResourceCompile>
     <Link>
-      <AdditionalDependencies>winmm.lib;ws2_32.lib;libpng.lib;zlibstat.lib;lzo2.lib;liblzma.lib;libfreetype2.lib;icuuc.lib;icuin.lib;icudt.lib;icule.lib;iculx.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>winmm.lib;ws2_32.lib;imm32.lib;libpng.lib;zlibstat.lib;lzo2.lib;liblzma.lib;libfreetype2.lib;icuuc.lib;icuin.lib;icudt.lib;icule.lib;iculx.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <IgnoreSpecificDefaultLibraries>%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -280,7 +280,7 @@
       <Culture>0x0809</Culture>
     </ResourceCompile>
     <Link>
-      <AdditionalDependencies>winmm.lib;ws2_32.lib;libpng.lib;zlibstat.lib;lzo2.lib;liblzma.lib;libfreetype2.lib;icuuc.lib;icuin.lib;icudt.lib;icule.lib;iculx.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>winmm.lib;ws2_32.lib;imm32.lib;libpng.lib;zlibstat.lib;lzo2.lib;liblzma.lib;libfreetype2.lib;icuuc.lib;icuin.lib;icudt.lib;icule.lib;iculx.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <SuppressStartupBanner>true</SuppressStartupBanner>
       <IgnoreSpecificDefaultLibraries>LIBCMT.lib;%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
       <GenerateDebugInformation>true</GenerateDebugInformation>
--- a/projects/openttd_vs80.vcproj
+++ b/projects/openttd_vs80.vcproj
@@ -87,7 +87,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
+				AdditionalDependencies="winmm.lib ws2_32.lib imm32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
 				LinkIncremental="1"
 				SuppressStartupBanner="true"
 				IgnoreDefaultLibraryNames=""
@@ -184,7 +184,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
+				AdditionalDependencies="winmm.lib ws2_32.lib imm32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
 				LinkIncremental="0"
 				SuppressStartupBanner="true"
 				IgnoreDefaultLibraryNames="LIBCMT.lib"
@@ -292,7 +292,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
+				AdditionalDependencies="winmm.lib ws2_32.lib imm32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
 				LinkIncremental="1"
 				SuppressStartupBanner="true"
 				IgnoreDefaultLibraryNames=""
@@ -392,7 +392,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
+				AdditionalDependencies="winmm.lib ws2_32.lib imm32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
 				LinkIncremental="0"
 				SuppressStartupBanner="true"
 				IgnoreDefaultLibraryNames="LIBCMT.lib"
--- a/projects/openttd_vs80.vcproj.in
+++ b/projects/openttd_vs80.vcproj.in
@@ -87,7 +87,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
+				AdditionalDependencies="winmm.lib ws2_32.lib imm32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
 				LinkIncremental="1"
 				SuppressStartupBanner="true"
 				IgnoreDefaultLibraryNames=""
@@ -184,7 +184,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
+				AdditionalDependencies="winmm.lib ws2_32.lib imm32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
 				LinkIncremental="0"
 				SuppressStartupBanner="true"
 				IgnoreDefaultLibraryNames="LIBCMT.lib"
@@ -292,7 +292,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
+				AdditionalDependencies="winmm.lib ws2_32.lib imm32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
 				LinkIncremental="1"
 				SuppressStartupBanner="true"
 				IgnoreDefaultLibraryNames=""
@@ -392,7 +392,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
+				AdditionalDependencies="winmm.lib ws2_32.lib imm32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
 				LinkIncremental="0"
 				SuppressStartupBanner="true"
 				IgnoreDefaultLibraryNames="LIBCMT.lib"
--- a/projects/openttd_vs90.vcproj
+++ b/projects/openttd_vs90.vcproj
@@ -88,7 +88,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
+				AdditionalDependencies="winmm.lib ws2_32.lib imm32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
 				LinkIncremental="1"
 				SuppressStartupBanner="true"
 				IgnoreDefaultLibraryNames=""
@@ -183,7 +183,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
+				AdditionalDependencies="winmm.lib ws2_32.lib imm32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
 				LinkIncremental="0"
 				SuppressStartupBanner="true"
 				IgnoreDefaultLibraryNames="LIBCMT.lib"
@@ -290,7 +290,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
+				AdditionalDependencies="winmm.lib ws2_32.lib imm32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
 				LinkIncremental="1"
 				SuppressStartupBanner="true"
 				IgnoreDefaultLibraryNames=""
@@ -389,7 +389,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
+				AdditionalDependencies="winmm.lib ws2_32.lib imm32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
 				LinkIncremental="0"
 				SuppressStartupBanner="true"
 				IgnoreDefaultLibraryNames="LIBCMT.lib"
--- a/projects/openttd_vs90.vcproj.in
+++ b/projects/openttd_vs90.vcproj.in
@@ -88,7 +88,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
+				AdditionalDependencies="winmm.lib ws2_32.lib imm32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
 				LinkIncremental="1"
 				SuppressStartupBanner="true"
 				IgnoreDefaultLibraryNames=""
@@ -183,7 +183,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
+				AdditionalDependencies="winmm.lib ws2_32.lib imm32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
 				LinkIncremental="0"
 				SuppressStartupBanner="true"
 				IgnoreDefaultLibraryNames="LIBCMT.lib"
@@ -290,7 +290,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
+				AdditionalDependencies="winmm.lib ws2_32.lib imm32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
 				LinkIncremental="1"
 				SuppressStartupBanner="true"
 				IgnoreDefaultLibraryNames=""
@@ -389,7 +389,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
+				AdditionalDependencies="winmm.lib ws2_32.lib imm32.lib libpng.lib zlibstat.lib lzo2.lib liblzma.lib libfreetype2.lib icuuc.lib icuin.lib icudt.lib icule.lib iculx.lib"
 				LinkIncremental="0"
 				SuppressStartupBanner="true"
 				IgnoreDefaultLibraryNames="LIBCMT.lib"
--- a/src/console_gui.cpp
+++ b/src/console_gui.cpp
@@ -308,6 +308,15 @@
 		return ES_HANDLED;
 	}
 
+	virtual void InsertTextString(int wid, const char *str)
+	{
+		if (_iconsole_cmdline.InsertString(str)) {
+			IConsoleWindow::scroll = 0;
+			IConsoleResetHistoryPos();
+			this->SetDirty();
+		}
+	}
+
 	virtual void OnMouseWheel(int wheel)
 	{
 		this->Scroll(-wheel);
--- a/src/gfx_func.h
+++ b/src/gfx_func.h
@@ -71,6 +71,7 @@
 extern Palette _cur_palette; ///< Current palette
 
 void HandleKeypress(uint keycode, WChar key);
+void HandleTextInput(const char *str);
 void HandleCtrlChanged();
 void HandleMouseEvents();
 void CSleep(int milliseconds);
--- a/src/textbuf.cpp
+++ b/src/textbuf.cpp
@@ -144,20 +144,18 @@
 }
 
 /**
- * Insert a chunk of text from the clipboard onto the textbuffer. Get TEXT clipboard
- * and append this up to the maximum length (either absolute or screenlength). If maxlength
- * is zero, we don't care about the screenlength but only about the physical length of the string
- * @return true on successful change of Textbuf, or false otherwise
+ * Insert a string into the text buffer. If maxwidth of the Textbuf is zero,
+ * we don't care about the visual-length but only about the physical
+ * length of the string.
+ * @param str String to insert.
+ * @return True on successful change of Textbuf, or false otherwise.
  */
-bool Textbuf::InsertClipboard()
+bool Textbuf::InsertString(const char *str)
 {
-	char utf8_buf[512];
-
-	if (!GetClipboardContents(utf8_buf, lengthof(utf8_buf))) return false;
 
 	uint16 bytes = 0, chars = 0;
 	WChar c;
-	for (const char *ptr = utf8_buf; (c = Utf8Consume(&ptr)) != '\0';) {
+	for (const char *ptr = str; (c = Utf8Consume(&ptr)) != '\0';) {
 		if (!IsValidChar(c, this->afilter)) break;
 
 		byte len = Utf8CharLen(c);
@@ -171,7 +169,7 @@
 	if (bytes == 0) return false;
 
 	memmove(this->buf + this->caretpos + bytes, this->buf + this->caretpos, this->bytes - this->caretpos);
-	memcpy(this->buf + this->caretpos, utf8_buf, bytes);
+	memcpy(this->buf + this->caretpos, str, bytes);
 
 	this->bytes += bytes;
 	this->chars += chars;
@@ -187,6 +185,21 @@
 	return true;
 }
 
+/**
+ * Insert a chunk of text from the clipboard onto the textbuffer. Get TEXT clipboard
+ * and append this up to the maximum length (either absolute or screenlength). If maxlength
+ * is zero, we don't care about the screenlength but only about the physical length of the string
+ * @return true on successful change of Textbuf, or false otherwise
+ */
+bool Textbuf::InsertClipboard()
+{
+	char utf8_buf[512];
+
+	if (!GetClipboardContents(utf8_buf, lengthof(utf8_buf))) return false;
+
+	return this->InsertString(utf8_buf);
+}
+
 /** Update the character iter after the text has changed. */
 void Textbuf::UpdateStringIter()
 {
--- a/src/textbuf_type.h
+++ b/src/textbuf_type.h
@@ -52,6 +52,7 @@
 	bool InsertClipboard();
 
 	bool InsertChar(uint32 key);
+	bool InsertString(const char *str);
 
 	bool DeleteChar(uint16 keycode);
 	bool MovePos(uint16 keycode);
--- a/src/video/win32_v.cpp
+++ b/src/video/win32_v.cpp
@@ -493,6 +493,33 @@
 	return 0;
 }
 
+#if !defined(WINCE) || _WIN32_WCE >= 0x400
+/** Handle WM_IME_COMPOSITION messages. */
+static LRESULT HandleIMEComposition(HWND hwnd, WPARAM wParam, LPARAM lParam)
+{
+	HIMC hIMC = ImmGetContext(hwnd);
+
+	if (hIMC != NULL) {
+		if (lParam & GCS_RESULTSTR) {
+			/* Read result string from the IME. */
+			LONG len = ImmGetCompositionString(hIMC, GCS_RESULTSTR, NULL, 0); // Length is always in bytes, even in UNICODE build.
+			TCHAR *str = (TCHAR *)_alloca(len + sizeof(TCHAR));
+			len = ImmGetCompositionString(hIMC, GCS_RESULTSTR, str, len);
+			str[len / sizeof(TCHAR)] = '\0';
+
+			/* Transmit text to windowing system. */
+			if (len > 0) HandleTextInput(FS2OTTD(str));
+
+			/* Don't pass the result string on to the default window proc. */
+			lParam &= ~(GCS_RESULTSTR | GCS_RESULTCLAUSE | GCS_RESULTREADCLAUSE | GCS_RESULTREADSTR);
+		}
+	}
+	ImmReleaseContext(hwnd, hIMC);
+
+	return lParam != 0 ? DefWindowProc(hwnd, WM_IME_COMPOSITION, wParam, lParam) : 0;
+}
+#endif
+
 static LRESULT CALLBACK WndProcGdi(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
 {
 	static uint32 keycode = 0;
@@ -628,6 +655,9 @@
 		}
 
 #if !defined(WINCE) || _WIN32_WCE >= 0x400
+		case WM_IME_COMPOSITION:
+			return HandleIMEComposition(hwnd, wParam, lParam);
+
 #if !defined(UNICODE)
 		case WM_IME_CHAR:
 			if (GB(wParam, 8, 8) != 0) {
--- a/src/window.cpp
+++ b/src/window.cpp
@@ -2528,6 +2528,33 @@
 }
 
 /**
+ * Insert a text string at the cursor position into the edit box widget.
+ * @param wid Edit box widget.
+ * @param str Text string to insert.
+ */
+/* virtual */ void Window::InsertTextString(int wid, const char *str)
+{
+	QueryString *query = this->GetQueryString(wid);
+	if (query == NULL) return;
+
+	if (query->text.InsertString(str)) {
+		this->SetWidgetDirty(wid);
+		this->OnEditboxChanged(wid);
+	}
+}
+
+/**
+ * Handle text input.
+ * @param str Text string to input.
+ */
+void HandleTextInput(const char *str)
+{
+	if (!EditBoxInGlobalFocus()) return;
+
+	_focused_window->InsertTextString(_focused_window->window_class == WC_CONSOLE ? 0 : _focused_window->nested_focus->index, str);
+}
+
+/**
  * Local counter that is incremented each time an mouse input event is detected.
  * The counter is used to stop auto-scrolling.
  * @see HandleAutoscroll()
--- a/src/window_gui.h
+++ b/src/window_gui.h
@@ -489,6 +489,7 @@
 	bool SetFocusedWidget(int widget_index);
 
 	EventState HandleEditBoxKey(int wid, WChar key, uint16 keycode);
+	virtual void InsertTextString(int wid, const char *str);
 
 	void HandleButtonClick(byte widget);
 	int GetRowFromWidget(int clickpos, int widget, int padding, int line_height = -1) const;