Implemented the text functions on Windows.

button_windows.c

@@ -93,7 +93,15 @@ uiControl *uiNewButton(const char *text)
 	return b->c;
 }
 
-// TODO text
+char *uiButtonText(uiControl *c)
+{
+	return uiWindowsControlText(c);
+}
+
+void uiButtonSetText(uiControl *c, const char *text)
+{
+	uiWindowsControlSetText(c, text);
+}
 
 void uiButtonOnClicked(uiControl *c, void (*f)(uiControl *, void *), void *data)
 {

entry_windows.c

@@ -61,3 +61,13 @@ uiControl *uiNewEntry(void)
 
 	return e->c;
 }
+
+char *uiEntryText(uiControl *c)
+{
+	return uiWindowsControlText(c);
+}
+
+void uiEntrySetText(uiControl *c, const char *text)
+{
+	uiWindowsControlSetText(c, text);
+}

newcontrol_windows.c

@@ -123,3 +123,24 @@ void *uiWindowsControlData(uiControl *c)
 {
 	return S(c)->data;
 }
+
+char *uiWindowsControlText(uiControl *c)
+{
+	WCHAR *wtext;
+	char *text;
+
+	wtext = windowText(S(c)->hwnd);
+	text = toUTF8(wtext);
+	uiFree(wtext);
+	return text;
+}
+
+void uiWindowsControlSetText(uiControl *c, const char *text)
+{
+	WCHAR *wtext;
+
+	wtext = toUTF16(text);
+	if (SetWindowTextW(S(c)->hwnd, wtext) == 0)
+		logLastError("error setting control text in uiWindowsControlSetText()");
+	uiFree(wtext);
+}

text_windows.c

@@ -16,3 +16,46 @@ WCHAR *toUTF16(const char *str)
 		logLastError("error converting from UTF-8 to UTF-16 in toUTF16()");
 	return wstr;
 }
+
+#define WCTMB(wstr, str, bufsiz) WideCharToMultiByte(CP_UTF8, WC_NO_BEST_FIT_CHARS, wstr, -1, str, bufsiz, NULL, FALSE)
+
+char *toUTF8(const WCHAR *wstr)
+{
+	char *str;
+	int n;
+
+	n = WCTMB(wstr, NULL, 0);
+	if (n == 0)
+		logLastError("error figuring out number of characters to convert to in toUTF8()");
+	// TODO does n include the null terminator?
+	str = (char *) uiAlloc((n + 1) * sizeof (char), "char[]");
+	if (WCTMB(wstr, str, n + 1) != n)
+		logLastError("error converting from UTF-16 to UTF-8 in toUTFF8()");
+	return str;
+}
+
+WCHAR *windowText(HWND hwnd)
+{
+	int n;
+	WCHAR *text;
+	DWORD le;
+
+	SetLastError(0);
+	n = GetWindowTextLengthW(hwnd);
+	if (n == 0) {
+		le = GetLastError();
+		SetLastError(le);		// just in case
+		if (le != 0)
+			logLastError("error getting window text length in windowText()");
+	}
+	// TODO null terminator?
+	text = (WCHAR *) uiAlloc((n + 1) * sizeof (WCHAR), "WCHAR[]");
+	if (GetWindowTextW(hwnd, text, n + 1) != n)
+		logLastError("error getting window text in windowText()");
+	return text;
+}
+
+void uiFreeText(char *text)
+{
+	uiFree(text);
+}

ui_windows.h

@@ -47,4 +47,9 @@ void *uiWindowsControlData(uiControl *);
 // TODO really export?
 extern intmax_t uiWindowsWindowTextWidth(HWND hwnd);
 
+// these functions get and set the window text for such a uiControl
+// the value returned should be freed with uiFreeText()
+extern char *uiWindowsControlText(uiControl *);
+extern void uiWindowsControlSetText(uiControl *, const char *);
+
 #endif

uipriv_windows.h

@@ -49,6 +49,8 @@ extern HWND initialParent;
 
 // text_windows.c
 extern WCHAR *toUTF16(const char *);
+extern char *toUTF8(const WCHAR *);
+extern WCHAR *windowText(HWND);
 
 // container_windows.c
 extern BOOL sharedWndProc(HWND, UINT, WPARAM, LPARAM, LRESULT *);

window_windows.c

@@ -116,7 +116,26 @@ uintptr_t uiWindowHandle(uiWindow *w)
 	return (uintptr_t) (w->hwnd);
 }
 
-// TODO titles
+char *uiWindowTitle(uiWindow *w)
+{
+	WCHAR *wtext;
+	char *text;
+
+	wtext = windowText(w->hwnd);
+	text = toUTF8(wtext);
+	uiFree(wtext);
+	return text;
+}
+
+void uiWindowSetTitle(uiWindow *w, const char *text)
+{
+	WCHAR *wtext;
+
+	wtext = toUTF16(text);
+	if (SetWindowTextW(w->hwnd, wtext) == 0)
+		logLastError("error setting window title in uiWindowSetTitle()");
+	uiFree(wtext);
+}
 
 void uiWindowShow(uiWindow *w)
 {