Simple Windows app skeleton (CreateWindow())

winmain.c

#include <windows.h>
#include <commctrl.h>
#include <tchar.h>


static LRESULT CALLBACK
win_proc(HWND win, UINT msg, WPARAM wp, LPARAM lp)
{
    switch(msg) {
        case WM_CLOSE:
            PostQuitMessage(0);
            break;
    }

    return DefWindowProc(win, msg, wp, lp);
}

int APIENTRY
_tWinMain(HINSTANCE instance, HINSTANCE prev_instance, TCHAR* cmd_line, int cmd_show)
{
    WNDCLASS wc = { 0 };
    HWND win;
    MSG msg;

    InitCommonControls();

    wc.style = CS_HREDRAW | CS_VREDRAW;
    wc.lpfnWndProc = win_proc;
    wc.hInstance = instance;
    wc.hCursor = LoadCursor(NULL, IDC_ARROW);
    wc.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1);
    wc.lpszClassName = _T("window_class");
    RegisterClass(&wc);

    win = CreateWindow(_T("window_class"), _T("Window Title"), WS_OVERLAPPEDWINDOW,
                CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
                NULL, NULL, instance, NULL);
    ShowWindow(win, cmd_show);

    while(GetMessage(&msg, NULL, 0, 0)) {
        if(IsDialogMessage(win, &msg))
            continue;

        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }

    return (int)msg.wParam;
}