I am an absolute beginner. This is my first C++ code. Taking from the default project in Dev C++, youtube tutorials, and some intuition, I came up with the simple code below. I know the answer is going to be easy. I just can't seem to paste together answers from other posts the fix for mine. I know this is an easy fix for a person with any experience coding. Any help you provide is GREATLY appreciated!!!
I get 'undefined reference to CreateProcessWithLogonW' error.
#include <windows.h>
/* Declare Windows procedure */
LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);
HWND textfield;
/* Make the class name into a global variable */
char szClassName[ ] = 'WindowsApp';
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 are saved */
WNDCLASSEX wincl; /* Data structure 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; /* 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 Windows's default color as the background of the window */
wincl.hbrBackground = GetSysColorBrush (COLOR_3DFACE);
/* Register the window class, and if it fails quit the program */
if (!RegisterClassEx (&wincl))
return 0;
/* The class is registered, let's create the program*/
hwnd = CreateWindowEx (
0, /* Extended possibilites for variation */
szClassName, /* Classname */
'Files open on Mars',/* Title Text */
WS_SYSMENU, /* default window */
CW_USEDEFAULT, /* Windows decides the position */
CW_USEDEFAULT, /* where the window ends up on the screen */
444, /* The programs width */
175, /* 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, nFunsterStil);
/* 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, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message) /* handle the messages */
{
case WM_CREATE:
CreateWindow(TEXT('button'), TEXT('Open files'),
WS_VISIBLE | WS_CHILD,
10,10,80,25,
hwnd, (HMENU) 1, NULL, NULL
);
textfield = CreateWindow('STATIC',
'Please click the button to retrieve a list of open files on server',
WS_VISIBLE | WS_CHILD,
10,50,400,25, hwnd, NULL, NULL, NULL);
textfield = CreateWindow('STATIC',
'Message at bottom of box',
WS_VISIBLE | WS_CHILD,
10,120,400,25, hwnd, NULL, NULL, NULL);
break;
case WM_COMMAND:
if (LOWORD(wParam) 1) {
CreateProcessWithLogonW(L'me', L'company', L'xxxxxx', 0, 0, L'c:files.cmd', 0, NULL, NULL, NULL, NULL);
MessageBox(hwnd, 'A text file with all of the open files has been placed on your desktop', 'Open Files', MB_OK | MB_ICONINFORMATION);
}
break;
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;
}