diff --git a/main/main.cpp b/main/main.cpp
index 49a775d..b5a177b 100644
--- a/main/main.cpp
+++ b/main/main.cpp
@@ -3,6 +3,7 @@
 #include "Font.h"
 
 #include <iostream>
+#include <internal.hpp>
 
 bool isQuit(std::string command);
 
@@ -15,11 +16,109 @@ bool isQuit(std::string command);
  */
 
 #include "TextRenderer.h"
-void outPutPixel(int windowHeight, int windowWidth, vkvm::Color fontColor);
+void outputWindow(int windowHeight, int windowWidth, vkvm::Color fontColor);
+TextRenderer generateTextRender();
+void renderText(TextRenderer textRenderer);
+void test();
 
-int main() {
+void test(TextRenderer renderer);
+
+void redraw(TextRenderer renderer);
+
+void test1();
+
+int main(int argc, char *argv[]) {
     vkvm::initialize(0);
 
+    TextRenderer textRenderer = generateTextRender();
+
+    textRenderer.clear();
+
+//    test(textRenderer);
+
+    vkvm::registerEvent(vkvm::EventType::RenderText, [&textRenderer]() {
+        renderText(textRenderer);
+    });
+
+//    test1();
+
+    return 0;
+}
+
+void redraw(TextRenderer textRenderer) {
+    textRenderer.clear();
+    textRenderer.update(vkvm::getText());
+}
+
+void renderText(TextRenderer textRenderer) {
+    textRenderer.update(vkvm::getText());
+}
+
+TextRenderer generateTextRender() {
+    std::string command;
+    std::cout << "fontSize: ";
+    std::getline(std::cin, command);
+
+    int windowWidth = vkvm::getWidth();
+    int windowHeight = vkvm::getHeight();
+    vkvm::Color fontColor = vkvm::getForegroundColor();
+    vkvm::Color backgroundColor = vkvm::getBackgroundColor();
+
+    vkvm::FontType fontType = vkvm::getFont();
+    int fontSize = std::stoi(command);
+
+    int font_id = fontType.getId();
+    std::string fontResourcePath = "../res/font" + std::to_string(3)  + ".bmp";
+    std::string fontConfigureFilePath = "../res/font" + std::to_string(3)  + ".toml";
+    Font font = Font(fontResourcePath, fontConfigureFilePath);
+
+    return TextRenderer(windowWidth, windowHeight, backgroundColor, fontColor, font, fontSize);
+}
+
+void test1() {
+    std::string command;
+    std::cout << "TextRender: ";
+    std::getline(std::cin, command);
+    while(command.compare("quit") != 0) {
+        if(command.compare("RenderText") == 0) {
+            vkvm::callEvent(vkvm::EventType::RenderText);
+        }
+
+        else if(command.compare("Redraw") == 0) {
+            vkvm::callEvent(vkvm::EventType::Redraw);
+        }
+
+        else {
+            vkvm::setText(command);
+        }
+    }
+
+    std::cout << "TextRender finished." << std::endl;}
+
+void test(TextRenderer renderer) {
+    std::string currentText;
+
+    std::string command;
+    std::cout << "TextRender: ";
+    std::getline(std::cin, command);
+    while(!isQuit(command)) {
+        if(command.compare("clear")) {
+            vkvm::setText(command);
+            currentText = vkvm::getText();
+            renderer.update(currentText);
+        } else {
+            renderer.clear();
+        }
+
+        outputWindow(renderer.getWindowHeight(), renderer.getWindowWidth(), vkvm::getForegroundColor());
+        std::cout << "TextRender: ";
+        std::getline(std::cin, command);
+    }
+
+    std::cout << "TextRender finished." << std::endl;
+}
+
+void test() {
     std::string currentText;
 
     /*************************set back to shared memory(only for test)********************************************/
@@ -53,7 +152,7 @@ int main() {
             vkvm::setText(command);
             currentText = vkvm::getText();
             textRenderer.update(currentText);
-            outPutPixel(windowHeight, windowWidth, fontColor);
+            outputWindow(windowHeight, windowWidth, fontColor);
             std::cout << "TextRender: ";
             std::getline(std::cin, command);
         } else {
@@ -62,12 +161,11 @@ int main() {
     }
 
     std::cout << "TextRender finished." << std::endl;
-
-    return 0;
 }
 
+
 /***************************read pixel in shared memory and test output in console******************************************/
-void outPutPixel(int windowHeight, int windowWidth, vkvm::Color fontColor) {
+void outputWindow(int windowHeight, int windowWidth, vkvm::Color fontColor) {
     for(int y = 0; y < windowHeight; y++) {
         for(int x = 0; x < windowWidth; x++) {
             if(vkvm::getPixel(x, y).getRed() == fontColor.getRed()) {
@@ -80,27 +178,6 @@ void outPutPixel(int windowHeight, int windowWidth, vkvm::Color fontColor) {
     }
 }
 
-
-//    std::string str;
-//    std::cout << "string to draw: ";
-//    std::getline(std::cin, str);
-//
-//    for (int i = 0; i < font.height(); i++) {
-//        for (char c : str) {
-//            for (int j = 0; j < font.width(); j++) {
-//                if (font.getPixel(c,j,i)) {
-//                    std::cout << "█";
-//                } else {
-//                    std::cout << " ";
-//                }
-//            }
-//            std::cout << " ";
-//        }
-//        std::cout << std::endl;
-//    }
-//
-//    return 0;
-
 bool isQuit(std::string command) {
     return command.compare("quit") == 0;
 }
diff --git a/src/TextRenderer.cpp b/src/TextRenderer.cpp
index c827131..74d0f73 100644
--- a/src/TextRenderer.cpp
+++ b/src/TextRenderer.cpp
@@ -3,28 +3,47 @@
 //
 #include "TextRenderer.h"
 
+TextRenderer::TextRenderer(int windowWidth, int windowHeight, vkvm::Color backGroundColor, vkvm::Color fontColor,
+                           Font font, int fontSize): backgroundColor(backgroundColor), fontColor(fontColor), font(font)  {
+    this-> windowWidth = windowWidth;
+    this-> windowHeight = windowHeight;
+    currentX = 0;
+    currentY = 0;
+    fontHeight = font.height() * fontSize;
+    fontWidth = font.width() * fontSize;
+
+    this -> fontSize = fontSize;
+}
+
+
 TextRenderer::TextRenderer(int windowWidth, int windowHeight, vkvm::Color backgroundColor, vkvm::Color fontColor, Font font)
                             : backgroundColor(backgroundColor), fontColor(fontColor), font(font) {
     this-> windowWidth = windowWidth;
     this-> windowHeight = windowHeight;
-    fontWidth = font.width();
-    fontHeight = font.height();
+    currentX = 0;
+    currentY = 0;
+
+    fontHeight = font.height() * fontSize;
+    fontWidth = font.width() * fontSize;
 }
 
 void TextRenderer::update(std::string newText) {
-    int startX = 0;
-    int startY = 0;
+    currentX = 0;
+    currentY = 0;
     int i;
     int fontNumbersInOneLine = windowWidth / (fontWidth + left_margin);
     std::vector<std::vector<bool>> characterBitmap;
 
     for(i = 0; i < newText.size(); i++) {
         if(i > oldText.size() || oldText[i] != newText[i]) {
-            startX = (i % fontNumbersInOneLine) * (fontWidth + left_margin);
-            startY = (i / fontNumbersInOneLine) * (fontHeight + bottom_margin);
+
+            currentX = (i % fontNumbersInOneLine) * (fontWidth + left_margin);
+            currentY = (i / fontNumbersInOneLine) * (fontHeight + bottom_margin);
+
             characterBitmap = getCharacter(newText[i], font);
+
 //            fontProcessing(characterBitmap);
-            translateToSharedMemory(characterBitmap, startX, startY);
+            translateToSharedMemory(characterBitmap, currentX, currentY);
         }
     }
 
@@ -40,22 +59,58 @@ void TextRenderer::clear() {
     }
 }
 
+void TextRenderer::clear(int startX, int startY, int endX, int endY) {
+    int x, y;
+    for(y = startY; y < endY; y++) {
+        for(x = startX; x < endX; x++) {
+            vkvm::setPixel(x, y, backgroundColor);
+        }
+    }
+}
+
 void TextRenderer::setOldText(std::string text) {
     oldText = text;
 }
 
 std::vector<std::vector<bool>> TextRenderer::getCharacter(unsigned char character, Font font) {
-    int fontHeight = font.height();
-    int fontWidth = font.width();
     std::vector<std::vector<bool>> bitmap_character;
 
+//    bitmap_character.resize(fontHeight);
+//    bitmap_character.resize(fontWidth);
+//    return bitmap_character;
+
+
 //    bitmap_character = (bool**)malloc(fontHeight * sizeof(bool*));
     bitmap_character.resize(fontHeight);
-    for (int i = 0; i < fontHeight; i++) {
+    for (int y = 0; y < fontHeight; y += fontSize) {
 //        bitmap_character[i] = (bool*)malloc(fontWidth * sizeof(bool));
-        bitmap_character[i].resize(fontWidth);
-        for (int j = 0; j < fontWidth; j++) {
-            bitmap_character[i][j] = font.getPixel(character, j, i);
+
+        for(int i = 0; i < fontSize; i++) {
+            bitmap_character[y + i].resize(fontWidth);
+        }
+        for (int x = 0; x < fontWidth; x += fontSize) {
+            bitmap_character[y][x] = font.getPixel(character, x / fontSize, y / fontSize);
+
+            if(bitmap_character[y][x] && fontSize != 1) {
+
+                if(y != 0) {
+                    for (int i = y - fontSize + 1; i < y; i++) {
+                        bitmap_character[i][x] = bitmap_character[y - fontSize][x];
+                    }
+                }
+
+                if(x != 0) {
+                    for (int i = x - fontSize + 1; i < x; i++) {
+                        bitmap_character[y][i] = bitmap_character[y][x - fontSize];
+                    }
+                }
+
+                if(x != 0 && y != 0) {
+                    for (int i = 1; i < fontSize; i++) {
+                        bitmap_character[y - i][x - i] = bitmap_character[y - fontSize][x - fontSize];
+                    }
+                }
+            }
         }
     }
 
@@ -89,21 +144,21 @@ bool TextRenderer::isUnderline() {
 
 void TextRenderer::translateToSharedMemory(std::vector<std::vector<bool>> characterBitmap, int startX, int startY) {
     int x, y;
-    int currentX = startX;
-    int currentY = startY;
+    int _currentX = startX;
+    int _currentY = startY;
 
     for(y = 0; y < fontHeight; y++) {
         for(x = 0; x < fontWidth; x++) {
             if(characterBitmap[y][x]) {
-                vkvm::setPixel(currentX, currentY, fontColor);
+                vkvm::setPixel(_currentX, _currentY, fontColor);
             }
             else {
-                vkvm::setPixel(currentX, currentY, backgroundColor);
+                vkvm::setPixel(_currentX, _currentY, backgroundColor);
             }
-            currentX++;
+            _currentX++;
         }
-        currentX = startX;
-        currentY++;
+        _currentX = startX;
+        _currentY++;
     }
 
     for(x = 0; x < left_margin; x++) {
@@ -126,3 +181,58 @@ void TextRenderer::setLeftMargin(int margin) {
 void TextRenderer::setBottomMargin(int margin) {
     bottom_margin = margin;
 }
+
+void TextRenderer::check() {
+    checkWindowSize();
+    checkFontColor();
+    checkBackgroundColor();
+}
+
+
+void TextRenderer::setWindowWidth(int windowWidth) {
+    this -> windowWidth = windowWidth;
+}
+
+void TextRenderer::setWindowHeight(int windowHeight) {
+    this -> windowHeight = windowHeight;
+}
+
+void TextRenderer::checkWindowSize() {
+
+}
+
+void TextRenderer::checkFontColor() {
+
+}
+
+void TextRenderer::checkBackgroundColor() {
+
+}
+
+int TextRenderer::getWindowWidth() {
+    return windowWidth;
+}
+
+int TextRenderer::getWindowHeight() {
+    return windowHeight;
+}
+
+//void TextRenderer::setPixelRange(int startX, int startY, int endX, int endY, int type) {
+//    if(type == 0) {
+//        for(int i = startX + 1; i < endX; i++) {
+//            vkvm::setPixel(i, startY, fontColor);
+//        }
+//    }
+//
+//    if(type == 1) {
+//        for(int i = 1; i < endX; i++) {
+//            vkvm::setPixel(startX + i, startY - i, fontColor);
+//        }
+//    }
+//
+//    if(type == 2) {
+//        for(int i = startY + 1; i < endY; i++) {
+//            vkvm::setPixel(i, startY, fontColor);
+//        }
+//    }
+//}
diff --git a/src/TextRenderer.h b/src/TextRenderer.h
index 1195563..2f428ea 100644
--- a/src/TextRenderer.h
+++ b/src/TextRenderer.h
@@ -23,6 +23,8 @@
 class TextRenderer {
 public:
     TextRenderer(int windowWidth, int windowHeight, vkvm::Color defaultBackgroundColor, vkvm::Color fontColor, Font font);
+    TextRenderer(int windowWidth, int windowHeight, vkvm::Color defaultBackgroundColor, vkvm::Color fontColor, Font font, int fontSize);
+
 
     void update(std::string text);
     void setOldText(std::string text);
@@ -30,12 +32,20 @@ public:
     void setLeftMargin(int margin);
     void setBottomMargin(int margin);
     void clear();
+    void clear(int startX, int startY, int endX, int endY);
+    void check();
+
+    void setWindowWidth(int windowWidth);
+    void setWindowHeight(int windowHeight);
+    int getWindowWidth();
+    int getWindowHeight();
 
 private:
     std::string oldText;
     vkvm::Color backgroundColor;
     vkvm::Color fontColor;
     Font font;
+    int fontSize = 1;
     int left_margin = 1;
     int bottom_margin = 1;
     int type;
@@ -43,11 +53,22 @@ private:
     int windowHeight;
     int fontWidth;
     int fontHeight;
+    int currentX;
+    int currentY;
     bool isBold();
     bool isItalics();
     bool isUnderline();
     void fontProcessing(std::vector<std::vector<bool>> characterBitmap);
     void translateToSharedMemory(std::vector<std::vector<bool>> characterBitmap, int startX, int startY);
+    void checkWindowSize();
+
+    void checkFontColor();
+
+    void checkBackgroundColor();
+
+    void checkText();
+
+//    void setPixelRange(int startX, int startY, int endX, int endY, int type);
 };