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PC World 2001 March
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PCWorld_2001-03_cd.bin
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Software
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TemaCD
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devc
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_SETUP.6
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Group13
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new.cpp
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C/C++ Source or Header
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1999-09-30
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3KB
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76 lines
/* Creation of a simple Windows API program */
#include <windows.h>
/* Declare Windowsprocedure */
LRESULT CALLBACK WindowProcedure(HWND, UINT, WPARAM, LPARAM);
/* Make the classname into a global variabel */
char szClassName[ ] = "MyLittleWindow";
int WINAPI WinMain(HINSTANCE hThisInstance, HINSTANCE hPrevInstance, LPSTR lpszArgument,
int nFunsterStil)
{
HWND hwnd; /* This is the handle for our window */
MSG messages; /* Here messages to the application is saved */
WNDCLASSEX wincl; /* Datastructure for the windowclass */
/* The Window structure */
wincl.hInstance = hThisInstance;
wincl.lpszClassName = szClassName;
wincl.lpfnWndProc = WindowProcedure; /* This function is called by windows */
wincl.style = CS_DBLCLKS; /* Ctach double-clicks */
wincl.cbSize = sizeof(WNDCLASSEX);
/* Use default icon and mousepointer */
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 lightgray 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, lets create a program*/
hwnd = CreateWindowEx(
0, /* Extended possibilites for variation */
szClassName, /* Classname ("MyLittleWindow") */
"A Simple Windows API program", /* Title Text */
WS_OVERLAPPEDWINDOW, /* defaultwindow */
CW_USEDEFAULT, /* Windows decides the position */
CW_USEDEFAULT, /* where the window end up on the screen */
280, /* The programs width */
180, /* and height in pixels */
HWND_DESKTOP, /* The window is a childwindow to desktop */
NULL, /* No menu */
hThisInstance, /* Program Instance handler */
NULL /* No Window Creation data */
);
/* Make the window visible on the screen */
ShowWindow(hwnd, nFunsterStil);
/* Run the nessageloop. It will run until GetMessage( ) returns 0 */
while(GetMessage(&messages, NULL, 0, 0))
{
/* Send message to WindowProcedure */
DispatchMessage(&messages);
}
/* The program returvalue is 0 - The value that PostQuitMessage( ) gave */
return messages.wParam;
}
/* This function is called by the Windowsfunction DispatchMessage( ) */
LRESULT CALLBACK WindowProcedure(HWND hwnd, UINT message, WPARAM wParam,
LPARAM lParam)
{
switch (message) { /* handle the messages */
case WM_DESTROY:
PostQuitMessage(0); /* send a WM_QUIT to the messagequeue */
break;
default: /* for messages that we don't deal with */
return DefWindowProc(hwnd, message, wParam, lParam);
}
return 0;
}