Introduction to WIN32 Development (3) redrawing the window

Let's take a look at the window redraw today, and before we start bragging, we're going to write a simple Win32 application in the way we mentioned in the previous blog post. The code is as follows:

#include <Windows.h>//First declare the message handler function Lresult CALLBACK Mywindowproc (HWND hwnd, UINT MSG, WPARAM WPARAM, LPA     

RAM LParam); Entry point int CALLBACK WinMain (hinstance hinstance, hinstance hprvinstance, LPSTR Lpcommandl     
    ine, int cmdshow) {wchar* CLN = L "MyApp";     
    Design window class Wndclass WC = {};     
    Wc.hinstance = hinstance;     
    Wc.lpszclassname = CLN;     
    Wc.lpfnwndproc = Mywindowproc;     
    Registration window class registerclass (&AMP;WC);     
        Create window HWND hmainwind = CreateWindow (CLN, L "Draw Window", Ws_overlappedwindow, 450, MB, NULL, NULL, h     
    Instance, NULL);     
    Display window if (hmainwind = NULL) return 0;     
    ShowWindow (Hmainwind,sw_normal);     
    message loop msg msg; while (GetMessage (&msg,null,0,0)) {translatemessage (&msg);     
    DispatchMessage (&AMP;MSG);     
return 0; }//Window message Handler lresult CALLBACK Mywindowproc (HWND hwnd, UINT MSG, WPARAM WPARAM, LPARAM LPARAM) {SWITC     
    H (msg) {case wm_paint:break;     
    Case Wm_destroy:postquitmessage (0);//exit program return 0;     
    Default:return DefWindowProc (Hwnd,msg,wparam,lparam); }     
}

This program can be normal operation, we first to run, to see what effect, of course, no effect, because it is just a blank window.