win api элементарная графика - Visual C++ - Ответ 2495934

#include <windows.h>
 
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
 
int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, 
    LPSTR lpCmdLine, int nCmdShow )
{
  MSG  msg ;    
  WNDCLASS wc = {0};
  wc.lpszClassName = TEXT( "Brush" );
  wc.hInstance     = hInstance ;
  wc.hbrBackground = GetSysColorBrush(COLOR_3DFACE);
  wc.lpfnWndProc   = WndProc ;
  wc.hCursor       = LoadCursor(0, IDC_ARROW);
  
  RegisterClass(&wc);
  CreateWindow( wc.lpszClassName, TEXT("Solid Brush"),
        WS_OVERLAPPEDWINDOW | WS_VISIBLE,
        100, 100, 220, 240, NULL, NULL, hInstance, NULL);  
 
  while( GetMessage(&msg, NULL, 0, 0)) {
      DispatchMessage(&msg);
  }
  return (int) msg.wParam;
}
 
LRESULT CALLBACK WndProc( HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
  HDC hdc;
  PAINTSTRUCT ps;
  HPEN holdPen, hPen;
  HBRUSH holdBrush, hBrush1, hBrush2, hBrush3, hBrush4;
 
 
  switch(msg)  
  {
      case WM_PAINT:
          hdc = BeginPaint(hwnd, &ps);
          hPen = CreatePen(PS_NULL, 1, RGB(0, 0, 0));
          holdPen = SelectObject(hdc, hPen);
 
          hBrush1 = CreateSolidBrush(RGB(121, 90, 0)); 
          hBrush2 = CreateSolidBrush(RGB(240, 63, 19));
          hBrush3 = CreateSolidBrush(RGB(240, 210, 18));
          hBrush4 = CreateSolidBrush(RGB(9, 189, 21));
                    
          holdBrush = SelectObject(hdc, hBrush1);
          Rectangle(hdc, 30, 30, 100, 100);
          SelectObject(hdc, hBrush2);
          Rectangle(hdc, 110, 30, 180, 100);
          SelectObject(hdc, hBrush3);
          Rectangle(hdc, 30, 110, 100, 180);
          SelectObject(hdc, hBrush4);
          Rectangle(hdc, 110, 110, 180, 180);
 
          SelectObject(hdc, holdPen);
          SelectObject(hdc, holdBrush);
 
          DeleteObject(hPen);
          DeleteObject(hBrush1);
          DeleteObject(hBrush2);
          DeleteObject(hBrush3);
          DeleteObject(hBrush4);
                    
       EndPaint(hwnd, &ps);
       break;
 
      case WM_DESTROY:
          PostQuitMessage(0);
          break;
  }
  return DefWindowProc(hwnd, msg, wParam, lParam);
}