C / C++ / MFC

LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)//Window Procedure<br />
{<br />
switch(msg)<br />
{<br />
case WM_CREATE://Creates the File and Convert to.. menus.<br />
{<br />
HMENU hMenu, hSubMenu;<br />
HICON hIcon, hIconSm;<br />
<br />
hMenu = CreateMenu();<br />
<br />
hSubMenu = CreatePopupMenu();<br />
AppendMenu(hSubMenu, MF_STRING, ID_FILE_EXIT, "E&xit");<br />
AppendMenu(hMenu, MF_STRING | MF_POPUP, (UINT)hSubMenu, "&File");<br />
<br />
<br />
hSubMenu = CreatePopupMenu();<br />
AppendMenu(hSubMenu, MF_STRING, ID_CONVERT_MM, "&MessengerMate");<br />
AppendMenu(hSubMenu, MF_STRING, ID_CONVERT_MIDDLE, "&Middle_Man(Coming Soon..)");<br />
AppendMenu(hMenu, MF_STRING | MF_POPUP, (UINT)hSubMenu, "&Convert to..");<br />
<br />
SetMenu(hwnd, hMenu);<br />
<br />
<br />
hIcon= LoadImage(NULL, "RidV.ico", IMAGE_ICON, 32, 32, LR_LOADFROMFILE);<br />
if(hIcon)<br />
SendMessage(hwnd, WM_SETICON, ICON_BIG, (LPARAM)hIcon);<br />
else<br />
MessageBox(hwnd, "Could not load large icon!", "Error", MB_OK | MB_ICONERROR);<br />
<br />
hIconSm= LoadImage(NULL, "RidV16.ico", IMAGE_ICON, 16, 16, LR_LOADFROMFILE);<br />
if(hIconSm)<br />
SendMessage(hwnd, WM_SETICON, ICON_SMALL, (LPARAM)hIconSm);<br />
else<br />
MessageBox(hwnd, "Could not load small icon!", "Error", MB_OK | MB_ICONERROR);<br />
}<br />
break;<br />
case WM_COMMAND:<br />
switch(LOWORD(wParam))<br />
{<br />
break;<br />
<br />
case ID_FILE_EXIT://Commands for Menu items go in the specified menu item.<br />
PostMessage(hwnd, WM_CLOSE, 0, 0);<br />
break;<br />
case ID_CONVERT_MM:<br />
<br />
break;<br />
case ID_CONVERT_MIDDLE:<br />
<br />
break;<br />
}<br />
<br />
break;<br />
case WM_CLOSE://Default reaction when users press the "x" button or Alt-F4<br />
DestroyWindow(hwnd);<br />
break;<br />
case WM_DESTROY://Destroys all windows including child windows(We have none, yet.)<br />
PostQuitMessage(0);<br />
break;<br />
default:<br />
return DefWindowProc(hwnd, msg, wParam, lParam);<br />
}<br />
return 0;<br />
}