Windows notes-A simple Windows GUI application

#include <windows.h>//write header files that Windows programs must contain

LRESULT CALLBACK WndProc (Hwnd,uint,wparam,lparam); declaring window function prototypes

int WINAPI WinMain (hinstance hinstance,
HInstance hPrevInstance,
LPSTR lpCmdLine,
int nshowcmd)
{
HWND hwnd; Defining window Handles
MSG msg; Define a variable to store the message
TCHAR lpszclassname[] = TEXT ("window");

WNDCLASS WC; Defining a window class variable
Wc.style = Cs_hredraw | Cs_vredraw;
Wc.lpfnwndproc = WndProc;
Wc.cbclsextra = 0;
Wc.cbwndextra = 0;
Wc.hinstance = hinstance;
Wc.hicon =:: LoadIcon (Null,idi_application);
Wc.hcursor =:: LoadCursor (Null,idc_arrow);
Wc.hbrbackground = (hbrush):: Getstockobject (White_brush);
Wc.lpszmenuname = NULL;
Wc.lpszclassname = lpszClassName;

:: RegisterClass (&WC); Registration window

Hwnd= CreateWindow (lpszClassName,//Create window
TEXT ("Windows"),
Ws_overlappedwindow,
120,50,800,600,
Null
Null
HINSTANCE,
NULL);

:: ShowWindow (Hwnd,sw_shownormal); Display window
:: UpdateWindow (HWND);

while (:: GetMessage (&msg,null,0,0))//message loop
{
:: TranslateMessage (&MSG);
::D ispatchmessage (&msg);
}
return msg.wparam;
}

window functions for processing messages
LRESULT CALLBACK WndProc (HWND hwnd,
UINT message,
WPARAM WPARAM,
LPARAM LPARAM)
{
Switch (message)
{
Case WM_LBUTTONDOWN://left mouse button under message
{
:: MessageBeep (0); API functions that can emit sounds
}
Break
Case Wm_destroy:
::P ostquitmessage (0);
Break
Default
return::D Efwindowproc (Hwnd,message,wparam,lparam);
}
return 0;
}

Style macros	Explain
Ws_border	Single-Line border
Ws_caption	Window with Title box (including Ws_boder style)
Ws_popup	As a pop-up window
Ws_child	As a subform (mutex with Ws_popup)
Ws_disabled	The window cannot be initialized and the interaction with the user is masked
Ws_dlgframe	The window looks similar to the dialog box
Ws_group	As a control for a form, you can combine it with other controls
Ws_hscroll	The window has a horizontal scroll bar
Ws_vscroll	The window has a vertical scroll bar
Ws_maximize	window with the initial state as maximized
Ws_maximizebox	The top right corner of the window has a maximize button
Ws_minimize	window with the initial state minimized
Ws_minimizebox	The top right corner of the window has a minimized button
Ws_overlappedwindow	This is a macro combination. For ease of writing, it is equivalent to ws_overlapped| ws_caption| ws_sysmenu| ws_thickframe| Ws_minimizebox| Ws_maximizebox
Ws_overlapped	window with border overlap
Ws_sizebox	The borders of the window can vary
Ws_sysmenu	In the top left corner of the title bar of the window, there is a window menu
Ws_tabstop	Window as a control, and the interaction can rest on the control
Ws_visible	The initial state of the window establishment is visible