WM_COMMAND message not being received by the Windows Procedure - winapi

Question

I am creating a system tray program with a shortcut/context menu, but I can't seem to receive WM_COMMAND messages in the Windows Procedure. It simply doesn't send when I click the menu item, and I've been checking for ages whether I have set up the menu correctly.
Here is my code:
#include <Windows.h>
#include <stdio.h>
#include "resource.h"
#define WM_TRAYICON (WM_USER + 0x0001) //a custom message for the notification icon
HWND hwnd; //window handle
HINSTANCE hinst; //module handle
WNDCLASSEX wnd; //window class
MSG msg; //event message or notification
NOTIFYICONDATA nid; //notification icon object
HMENU cmenu;
MENUITEMINFO menuitem1;
MENUITEMINFO menuitem2;
CURSORINFO cursor;
LRESULT CALLBACK MainWProc ( HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
{
switch( uMsg )
{
case WM_COMMAND:
printf("asfd\r\n");
break;
case WM_CREATE:
printf("just created\r\n");
break;
case WM_TRAYICON:
switch( LOWORD(lParam) )
{
case WM_CONTEXTMENU:
GetCursorInfo( &cursor );
//printf("xPos: %d\r\nyPos = %d\r\n\r\n", xPos, yPos );
TrackPopupMenuEx( cmenu, TPM_RETURNCMD | TPM_LEFTBUTTON | TPM_NOANIMATION | TPM_HORIZONTAL | TPM_VERTICAL, cursor.ptScreenPos.x, cursor.ptScreenPos.y, hwnd, NULL );
//DestroyMenu(
break;
}
break;
case WM_INITMENU:
printf("open menu\r\n");
break;
case WM_DESTROY:
//clean things up
Shell_NotifyIcon( NIM_DELETE, &nid );
break;
default:
break;
}
return DefWindowProc( hwnd, uMsg, wParam, lParam );
}
void main()
{
int result;
hinst = GetModuleHandle( NULL );
cursor.cbSize = sizeof( cursor );
memset( &wnd, 0, sizeof( wnd ) );
wnd.cbSize = sizeof( wnd );
wnd.lpszClassName = "MainWClass";
wnd.lpfnWndProc = MainWProc;
wnd.hInstance = hinst;
result = RegisterClassEx( &wnd );
hwnd = CreateWindowEx
(
0, //extended styles
wnd.lpszClassName, //class name
"Main Window", //window name
WS_OVERLAPPEDWINDOW | WS_HSCROLL | WS_VSCROLL | WS_MINIMIZEBOX, //style tags
CW_USEDEFAULT, //horizontal position
CW_USEDEFAULT, //vertical position
CW_USEDEFAULT, //width
CW_USEDEFAULT, //height
(HWND) NULL, //parent window
(HMENU) NULL, //class menu
(HINSTANCE) wnd.hInstance, //some HINSTANCE pointer
NULL //Create Window Data?
);
if( !hwnd )
{
printf("CreateWindowEx failed: %d\n", GetLastError() );
Sleep( INFINITE );
}
nid.cbSize = sizeof( nid );
nid.hWnd = hwnd;
nid.uID = 1;
nid.uVersion = NOTIFYICON_VERSION_4;
nid.uCallbackMessage = WM_TRAYICON;
nid.hIcon = LoadIcon( hinst, MAKEINTRESOURCE( IDI_ICON1 ) );
strcpy( nid.szTip, "My Tooltip!" );
nid.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP | NIF_SHOWTIP;
cmenu = CreatePopupMenu();
menuitem1.cbSize = sizeof( menuitem1 );
menuitem1.fMask = MIIM_TYPE;
menuitem1.fType = MFT_STRING;
menuitem1.hSubMenu = NULL;
//menuitem1.cch = ;
menuitem1.dwTypeData = "Open a world of wonder!";
InsertMenuItem( cmenu, 0, true, &menuitem1 );
if( ! Shell_NotifyIcon( NIM_ADD, &nid ) )
{
printf("Shell_NotifyIcon( NIM_ADD, &nid ) failed.\r\n");
Sleep( INFINITE );
}
if( ! Shell_NotifyIcon( NIM_SETVERSION, &nid ) )
{
printf("Shell_NotifyIcon( NIM_SETVERSION, &nid ) failed.\r\n");
Sleep( INFINITE );
}
UpdateWindow( hwnd );
for( ; ; )
{
if( GetMessage(&msg, hwnd, 0, 0) )
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
}

Answer 1

Um, you passed the TPM_RETURNCMD flag which means "don't post a WM_COMMAND message. Just return the value you would have posted."