[C++ D3D9] Wie erstelle ich ein Gui plus Maus?

#pragma once
 
#ifndef __CCHECKBOX_H_
#define __CCHECKBOX_H_
 
class cCheckBox
{
public:
 cCheckBox(void);
 ~cCheckBox(void);
 
 int X;
 int Y;
 bool Checked;
};
 
#endif

ClientSocket *s = new ClientSocket();
 if (!s->Init()) printf(\"init error\");
 
 // Register functions
 s->messageReceived = MessageReceived;

void bla()
{
 MessageBox();
}

typedef void (*OnClick)();
 
class cCheckBox
{
public:
 cCheckBox(void);
 ~cCheckBox(void);
 
 int X;
 int Y;
 bool Checked;
 OnClick Clicked;
};

cCheckBox::cCheckBox(int x, int y, bool checked, char *text, OnClick *click)
{
 this->X = x;
 this->Y = y;
 this->Checked = checked;
 this->Clicked = *click;
 this->Text = text;
}

cCheckBox::cCheckBox(int x, int y, bool checked, char *text, OnClick click)
{
 this->X = x;
 this->Y = y;
 this->Checked = checked;
 this->Clicked = click;
 this->Text = text;
}

void paint()
{
  FillRBG(x,y,10,10,255,255,255);
}

if(checked)
   FillRBG(x+2,y+2,6,6,255,0,0);

new_EndScene(LPDIRECT3DDEVICE9 *pDevice)
{
  pD3DDraw->device = pDevice;
}

void cCheckBox::Paint()
{
 pD3DDraw->DrawFilledRectangle(X, Y, 10, 10, 255, 255, 255);
 
 if (Checked)
   pD3DDraw->DrawFilledRectangle(X+2, Y+2, 6, 6, 0, 0, 0);
}

#pragma once
 
#ifndef __CMOUSE_H_
#define __CMOUSE_H_
 
class cMouse
{
public:
 cMouse(void);
 ~cMouse(void);
 
 int X;
 int Y;
 
 bool Down;
 bool Release;
};
 
#endif

void cMouse::SetMouseDown()
{
 Down = true;
 Release = false;
}
 
 
void cMouse::SetMouseRelease()
{
 Down = false;
 Release = true;
}

if (GetAsyncKeyState(VK_LBUTTON))
  mouse->SetMouseDown();

if (GetAsyncKeyState(VK_LBUTTON))
  mouse->SetMouseDown();
 else if (!GetAsyncKeyState(VK_LBUTTON))
  mouse->SetMouseRelease();

void Gui::CheckMouse() 
{ 
     if(GetAsyncKeyState(VK_LBUTTON)&1)
          mousedown = true;
     else
     {
          if(mousedown)
               mouserelease = true;
          else 
               mouserelease = false;
          mousedown = false;
     } 
}

LPPOINT point;
GetCursorPos(point);
pD3DDraw->DrawString(10, 50, 255, 0, 0, \"X: %i Y: %i\", point->x, point->y);

POINT point;
GetCursorPos(&point);

POINT point;
GetCursorPos(&point);
ScreenToClient(GetForegroundWindow(),&point);

void cMouse::IsControlClicked(int x, int y, int h, int w)
{
 if ((X >= x) && (X <= (x+w)) && (Y >= y) && (Y <= (y+h)))
  return true;
 
 return false;
}

if (GetAsyncKeyState(VK_LBUTTON))
  mouse->Down = true;
 else 
 {
  if (mouse->Down)
  {
   mouse->Release = true;
 
   if (mouse->IsOverControl(checkbox1->X, checkbox1->Y, 10, 10))
    MessageBox(NULL, \"KLICK\", \"\", 0);
  }
  else
   mouse->Release = false;
 
  mouse->Down = false;
 }

if (mouse->IsOverControl(checkbox1->X, checkbox1->Y, 10, 10))
    checkbox1->Checked = !checkbox1->Checked;

bool Gui::klickarea(int x, int y, int w, int h) 
{ 
     if(mouserelease && 
        mousepos[0] > x &&  
        x+w > mousepos[0] &&  
        mousepos[1] > y &&  
        y+h > mousepos[1]) 
          return true; 
     else 
          return false; 
}

bool Gui::klickarea(int x, int y, int w, int h) 
{ 
     if(mouserelease && 
        mousepos[0] > x &&  
        x+w > mousepos[0] &&  
        mousepos[1] > y &&  
        y+h > mousepos[1]) 
          return true; 
     else 
          return false; 
} 
 
bool Gui::overarea(int x, int y, int w, int h) 
{ 
     if(mousepos[0] > x &&  
        x+w > mousepos[0]&&  
        mousepos[1] > y &&  
        y+h > mousepos[1]) 
          return true; 
     else 
          return false; 
}

bool cMouse::ClickControl(int x, int y, int h, int w)
{
 if (!Release) return false;
 
 if ((X >= x) && (X <= (x+w)) && (Y >= y) && (Y <= (y+h)))
  return true;
 
 return false;
}

if (mouse->ClickControl(checkbox1->X, checkbox1->Y, 10, 10))
 {
  checkbox1->Checked = !checkbox1->Checked;
 }

POINT point;
GetCursorPos(&point);
ScreenToClient(GetForegroundWindow(), &point);
mouse->X = point.x;
mouse->Y = point.y;
 
 
 
if (GetAsyncKeyState(VK_LBUTTON))
  mouse->Down = true;
else 
{
  if (mouse->Down)
    mouse->Release = true;
  else
    mouse->Release = false;
 
  mouse->Down = false;
}
 
if (mouse->ClickControl(checkbox1->X, checkbox1->Y, 10, 10))
{
  checkbox1->Checked = !checkbox1->Checked;
}

if (mouse->ClickControl(checkbox1->X, checkbox1->Y, 10, 10))
{
  checkbox1->Checked = !checkbox1->Checked;
}

if(clickarea(x,y,10,10))

if (pMouse->ClickControl(X, Y, 10, 10))
 {
  Checked ^= 1;
  if (Clicked != NULL) Clicked();
 }

for(unsigned int i = 0; i < vcheckbox.size(); i++)
   vcheckbox[i]->paint();