#include <iostream>
#include <windows.h>
#include <dwmapi.h>

#include "resource.h"

#pragma comment (lib, "dwmapi.lib")




/*  Declare Windows procedure  */
LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);

/*  Make the class name into a global variable  */
char szClassName[ ] = "CodeBlocksWindowsApp";

int WINAPI WinMain (HINSTANCE hThisInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR lpszArgument,
                     int nCmdShow)
{
    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 */

            BLENDFUNCTION bfunc;
            bfunc.AlphaFormat = 0;
            bfunc.BlendFlags = 0;
            bfunc.BlendOp = AC_SRC_OVER;
            bfunc.SourceConstantAlpha = 0;

    /* 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 (GetModuleHandle(0), MAKEINTRESOURCE(IDI_MYAPP));
    wincl.hIconSm = LoadIcon (GetModuleHandle(0), MAKEINTRESOURCE(IDI_MYAPP));
    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 colour as the background of the window */
    wincl.hbrBackground = (HBRUSH) COLOR_BACKGROUND;

    /* 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 */
           "My App",            /* Title Text */
           WS_EX_LAYERED,       /* default window */
           CW_USEDEFAULT,       /* Windows decides the position */
           CW_USEDEFAULT,       /* where the window ends up on the screen */
           640,                 /* The programs width */
           480,                 /* 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 */
           );
        MARGINS mar =  { -1, -1, -1, -1 };

SetLayeredWindowAttributes(hwnd,  RGB(0x0, 0x0, 0x0), 0, LWA_COLORKEY);

      DwmExtendFrameIntoClientArea(hwnd, &mar);

    /* Make the window visible on the screen */
    ShowWindow (hwnd, nCmdShow);

    /* 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);
    }

    //Start of my code...



//    UpdateLayeredWindow (hwnd, //window handle
//                         NULL, //DC for screen (optional)
//                         NULL, //window position (NULL = no change)
//                         NULL, //New window size (NULL = same)
//                         NULL, //used if you want to morph the window, otherwise NULL
//                         NULL, //location of layer on Device context, if previous param is NULL, this should be too
//                         RGB(0,0,0), //window color
//                         &bfunc, //a BLENDFUNCTION variable, for setting alpha and stuff like that
//                         0); //tells how to use the blending, make 0 if param 5 is NULL



    //End of my code...



    /* 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_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;
}