diff --git a/demo/src/common.c b/demo/src/common.c
index f1bb965..ffb12e0 100644
--- a/demo/src/common.c
+++ b/demo/src/common.c
@@ -9,6 +9,8 @@
 
 
 static int answer = 0;
+static int intAnswer = 0;
+static double doubleAnswer = 0;
 static char buffer[4096] = {};
 static Sound beep;
 
@@ -73,15 +75,22 @@ void commonDraw() {
 	noFill();
 	textFontDefault();
 	textSize(16);
-	text(16, 48, buffer);
-	
-	textf(16, 16, "answer: %d, fps: %6.2f", answer, 1/windowGetFrameTime());
 	
+	textf(16, 16, "fps: %6.2f", 1/windowGetFrameTime());
+	textf(16, 48, "answer: %d, int: %d, double: %g", answer, intAnswer, doubleAnswer);
+	text(16, 80, buffer);
+
+
 	if (mouseWentDown("left"))
 		soundPlay(beep, FALSE);
 	
-	if (mouseWentDown("middle"))
-		askTextEx("Test\ntext input", buffer, sizeof(buffer), keyDown("any shift"), keyDown("any ctrl"));
+	if (mouseWentDown("middle")) {
+		if (keyDown("any alt")) {
+			answer = askTextf("Test\nformatted text input.\nEnter two numbers: int and double", "%d%lg", &intAnswer, &doubleAnswer);
+		} else {
+			askTextEx("Test\ntext input", buffer, sizeof(buffer), keyDown("any shift"), keyDown("any ctrl"));
+		}
+	}
 	
 	if (mouseWentDown("right")) {
 		if (keyDown("any ctrl")) {
diff --git a/demo/src/font.c b/demo/src/font.c
index f805ca6..84613ad 100644
--- a/demo/src/font.c
+++ b/demo/src/font.c
@@ -46,11 +46,11 @@ void fontDraw() {
 			double xx = x + (1-i)*w/2;
 			double yy = y + (1-j)*h/2;
 			textAlign(haligns[i], valigns[j]);
-			textf(xx, yy, "%s\n%s", ht[i], vt[j]);
 			if (i == 1 && j == 1) {
+				TextLayout layout = createTextLayoutf("%s\n%s", ht[i], vt[j]);
+				textLayoutDraw(layout, xx, yy);
 				saveState();
 				strokeWidth(0.5);
-				TextLayout layout = createTextLayout("center I\ncenter q");
 				double ex = 10;
 				double l = textLayoutGetLeft(layout);
 				double t = textLayoutGetTop(layout);
@@ -67,6 +67,9 @@ void fontDraw() {
 				line( xx+l-ex , yy+x    , xx+l+w+ex , yy+x      );
 				line( xx+l-ex , yy+b    , xx+l+w+ex , yy+b      );
 				restoreState();
+				textLayoutDestroy(layout);
+			} else {
+				textf(xx, yy, "%s\n%s", ht[i], vt[j]);
 			}
 		}
 	}
diff --git a/doc/helianthus-doc-ru.odt b/doc/helianthus-doc-ru.odt
index 1b5bb43..9a4938e 100644
Binary files a/doc/helianthus-doc-ru.odt and b/doc/helianthus-doc-ru.odt differ
diff --git a/src/font.c b/src/font.c
index 86f4696..8d360c2 100644
--- a/src/font.c
+++ b/src/font.c
@@ -589,6 +589,26 @@ TextLayout createTextLayout(const char *text) {
 }
 
 
+TextLayout createTextLayoutf(const char *format, ...) {
+	va_list args;
+	va_start(args, format);
+	
+	va_list args_copy;
+	va_copy(args_copy, args);
+	int size = vsnprintf(NULL, 0, format, args_copy);
+	va_end(args_copy);
+	if (size < 0) size = 0;
+	++size;
+	char *buffer = calloc(1, size);
+	vsnprintf(buffer, size, format, args);
+	va_end(args);
+	
+	TextLayout layout = createTextLayout(buffer);
+	free(buffer);
+	return layout;
+}
+
+
 void textLayoutDestroy(TextLayout layout) {
 	if (layout) {
 		free(layout->lines);
diff --git a/src/font.h b/src/font.h
index 0d6b000..61d59b7 100644
--- a/src/font.h
+++ b/src/font.h
@@ -37,6 +37,7 @@ void textSize(double size);
 
 
 TextLayout createTextLayout(const char *text);
+TextLayout createTextLayoutf(const char *format, ...);
 void textLayoutDestroy(TextLayout layout);
 void textLayoutDraw(TextLayout layout, double x, double y);
 void textLayoutDrawFrom(TextLayout layout, double x, double y, int start);
diff --git a/src/window.c b/src/window.c
index 4c76ee5..d2fc879 100644
--- a/src/window.c
+++ b/src/window.c
@@ -382,6 +382,17 @@ int questionBox3(const char* question, const char* answer0, const char* answer1,
 int askText(const char *question, char *answer, int maxAnswerSize)
 	{ return askTextEx(question, answer, maxAnswerSize, FALSE, FALSE); }
 
+int askTextf(const char *question, const char *format, ...) {
+	char buf[2048] = {};
+	if (!askText(question, buf, sizeof(buf)))
+		return EOF;
+	va_list args;
+	va_start(args, format);
+	int result = vsscanf(buf, format, args);
+	va_end(args);
+	return result;
+}
+
 
 static void resetEvents() {
 	dialog.newText[0] = 0;
diff --git a/src/window.h b/src/window.h
index 5dd029e..d80a170 100644
--- a/src/window.h
+++ b/src/window.h
@@ -42,6 +42,7 @@ void messageBox(const char *message);
 int questionBox(const char *question, const char *answer0, const char *answer1);
 int questionBox3(const char *question, const char *answer0, const char *answer1, const char *answer2);
 int askText(const char *question, char *answer, int maxAnswerSize);
+int askTextf(const char *question, const char *format, ...);
 int askTextEx(const char *question, char *answer, int maxAnswerSize, int multiline, int password);
 
 int windowGetWidth();