/* john pfeiffer summer 07? basic windows with comments */
#include <windows.h>
/* Declare Windows procedure */
LRESULT CALLBACK WindowProcedure(HWND, UINT, WPARAM, LPARAM);
/* Make the class name into a global variable */
int WINAPI WinMain(
HINSTANCE hThisInstance, /* Handle to the current instance */
HINSTANCE hPrevInstance, /* Handle to the previous instance */
LPSTR lpszArgument, /* pointer to command line arguments */
int ncmdshow) /* show state of the window */
{
HWND hwnd; /* This is the handle for our window */
MSG messages; /* Here messages to the application are saved */
WNDCLASSEX wincl; /* Data structure for the windowclass */
/* The Window structure */
wincl.hInstance = hThisInstance;
wincl.lpszClassName = "WindowsApp";
wincl.lpfnWndProc = WindowProcedure; /* This function is called by windows */
wincl.style = CS_DBLCLKS; /* Catch double-clicks */
wincl.cbSize = sizeof(WNDCLASSEX);
/* Use default icon and mouse-pointer */
wincl.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wincl.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
wincl.hCursor = LoadCursor(NULL, IDC_ARROW);
wincl.lpszMenuName = NULL; /* No menu */
wincl.cbClsExtra = 0; /* No extra bytes after the window class */
wincl.cbWndExtra = 0; /* structure or the window instance */
/* Use light-gray as the background of the window */
wincl.hbrBackground = (HBRUSH) GetStockObject(LTGRAY_BRUSH);
/* Register the window class, if fail quit the program */
if(!RegisterClassEx(&wincl)) return 0;
/* The class is registered, let's create the program*/
hwnd = CreateWindowEx(
1, /* Extended possibilites for variation */
"WindowsApp", /* Classname */
"Windows App", /* Title Text */
WS_OVERLAPPEDWINDOW, /* default window */
CW_USEDEFAULT, /* Windows decides the position */
CW_USEDEFAULT, /* where the window ends up on the screen */
544, /* The programs width */
375, /* and height in pixels */
HWND_DESKTOP, /* The window is a child-window to desktop */
NULL, /* No menu */
hThisInstance, /* Program Instance handler */
NULL /* No Window Creation data */
);
/* Make the window visible on the screen */
ShowWindow(hwnd, ncmdshow);
/* Run the message loop. It will run until GetMessage( ) returns 0 */
while(GetMessage(&messages, NULL, 0, 0))
{
/* Translate virtual-key messages into character messages */
TranslateMessage(&messages);
/* Send message to WindowProcedure */
DispatchMessage(&messages);
}
/* The program return-value is 0 - The value that PostQuitMessage( ) gave */
return messages.wParam;
}
/* This function is called by the Windows function DispatchMessage( ) */
LRESULT CALLBACK WindowProcedure(
HWND hwnd /* Handle of window that received the msg */
UINT message, /* The message */
WPARAM wParam, /* Extra parameter (e.g. mouse x) */
LPARAM lParam) /* Extra parameter (e.g. mouse y) */
{
switch (message) /* handle the messages */
{
case WM_DESTROY:
PostQuitMessage(0); /* send a WM_QUIT to the message queue */
break;
default: /* for messages that we don't deal with */
return DefWindowProc(hwnd, message, wParam, lParam);
}
return 0;
}