Simple Windows app skeleton (CreateDialog())

dlgmain.c

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


/* To use this, you have to create rsource script to accompany this file,
 * providing the dialog resource with this resource ID. */
#ifndef IDD_MAIN
    #define IDD_MAIN        1000
#endif


static INT_PTR CALLBACK
dlg_proc(HWND dlg, UINT msg, WPARAM wp, LPARAM lp)
{
    switch(msg) {
        case WM_CLOSE:
            PostQuitMessage(0);
            break;

        default:
            return FALSE;
    }

    return TRUE;
}

int APIENTRY
_tWinMain(HINSTANCE instance, HINSTANCE prev_instance, TCHAR* cmd_line, int cmd_show)
{
    HWND dlg;
    MSG msg;

    InitCommonControls();

    dlg = CreateDialog(instance, MAKEINTRESOURCE(IDD_MAIN), NULL, dlg_proc);
    if(!dlg)
        return 1;

    ShowWindow(dlg, cmd_show);

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

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

    return (int)msg.wParam;
}