I'm new to Windows programming, and I've been trying to assemble a program that creates a window alot of times! But I always end up getting errors! :( Now I've done it again, and this time it isn't a compiler error, but a linker error:( Well anyway, here is my source: ================================================================ /****************************************************************************** * bool initWindow( HINSTANCE hInstance ) * initWindow registers the window class for the application, creates the window ******************************************************************************/ #include <windows.h> HINSTANCE hInst; // global handle to hold the application instance HWND wndHandle; // global variable to hold the window handle // forward declarations bool initWindow(HINSTANCE hInstance); LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); // This is winmain, the main entry point for Windows applications int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow) { // Initialize the window if (!initWindow(hInstance)) return false; // main message loop: MSG msg; ZeroMemory( &msg, sizeof(msg)); while(msg.message!=WM_QUIT) { // Check the message queue while (GetMessage(&msg, wndHandle, 0, 0)) { TranslateMessage(&msg); DispatchMessage(&msg); } } return (int) msg.wParam; } bool initWindow(HINSTANCE hInstance) { WNDCLASSEX wcex; // Fill in the WNDCLASSEX structure. This describes how the window // will look to the system wcex.cbSize = sizeof(WNDCLASSEX); // the size of the structure wcex.style = CS_HREDRAW | CS_VREDRAW; // the class style wcex.lpfnWndProc = (WNDPROC)WndProc; // the window procedure callback wcex.cbClsExtra = 0; // extra bytes to allocate for this class wcex.cbWndExtra = 0; // extra bytes to allocate for this instance wcex.hInstance = hInstance; // handle to the application instance wcex.hIcon = 0; // icon to associate with the application wcex.hCursor = LoadCursor(NULL, IDC_ARROW); // the default cursor wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1); // the background color wcex.lpszMenuName = NULL; // the resource name for the menu wcex.lpszClassName = "DirectXExample"; // the class name being created wcex.hIconSm = 0; // the handle to the small icon RegisterClassEx(&wcex); // Create the window wndHandle = CreateWindow( "DirectXExample", "DirectXExample", WS_OVERLAPPEDWINDOW, // the window class to use // the title bar text // the window style CW_USEDEFAULT, // the starting x coordinate CW_USEDEFAULT, // the starting y coordinate 640, // the pixel width of the window 480, // the pixel height of the window NULL, // the parent window; NULL for desktop NULL, // the menu for the application; NULL for none hInstance, // the handle to the application instance NULL); // no values passed to the window // Make sure that the window handle that is created is valid if (!wndHandle) return false; // Display the window on the screen ShowWindow(wndHandle, SW_SHOW); UpdateWindow(wndHandle); return true; } /****************************************************************************** * LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, * LPARAM lParam) * The window procedure ******************************************************************************/ LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { // Check any available messages from the queue switch (message) { case WM_DESTROY: PostQuitMessage(0); break; } // Always return the message to the default window // procedure for further processing return DefWindowProc(hWnd, message, wParam, lParam); } ================================================================ The errors that I get are called LNK2001 and LNK1120. Here's what it ssays: LIBCD.lib(crt0.obj) : error LNK2001: unresolved external symbol _main Debug/CreateWindow.exe : fatal error LNK1120: 1 unresolved externals Can someone please help me out?

You're probably linking it as a Console app rather than a Windows GUI application (it's looking for main instead of WinMain).

Follow Project-> Project Settings-> Link
Then look for /subsystem:console and change it to /subsystem:windows. It should work. I hope so :)

Thank you so much guys! :D I've never been in a forum where I've gotten response this quickly before. Apparently, there's some things I've yet to learn about Visual Studio:\

For future reference, this:

[source]
#include <iostream>

int main()
{
std::cout << "Hello World!" << std::endl;
return 0;
}
[/source]

Becomes this:



Makes reading source code a little easier.