Problem with taskbar icon
This is my code:
Code:
#include <windows.h>
#define WM_TASKBAR 45154
#define IDI_ICON1 5001
/* Declare Windows procedure */
LRESULT CALLBACK WindowProcedure (HWND, UINT, WPARAM, LPARAM);
HWND hwnd;
/* Make the class name into a global variable */
char szClassName[ ] = "WindowsApp";
LRESULT TaskbarFunc(WPARAM wParam, LPARAM lParam);
void RemoveTask();
void CreateTask();
int WINAPI WinMain (HINSTANCE hThisInstance,
HINSTANCE hPrevInstance,
LPSTR lpszArgument,
int nFunsterStil)
{
MSG messages; /* Here messages to the application are saved */
WNDCLASSEX wincl; /* Data structure for the windowclass */
/* 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 (NULL, IDI_APPLICATION);
wincl.hIconSm = LoadIcon (NULL, IDI_APPLICATION);
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 color 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 */
"Windows App", /* Title Text */
WS_OVERLAPPEDWINDOW, /* default window */
CW_USEDEFAULT, /* Windows decides the position */
CW_USEDEFAULT, /* where the window ends up on the screen */
544, /* The programs width */
375, /* 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 */
);
/* Make the window visible on the screen */
ShowWindow (hwnd, nFunsterStil);
/* 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);
}
/* 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_CREATE:
CreateTask();
break;
case WM_TASKBAR:{
UINT uMouseMsg = (UINT) lParam;
switch (uMouseMsg){
case WM_LBUTTONDOWN: MessageBox(HWND_DESKTOP,"Mouse click on the Icon !","WARNING",MB_OK);
break;
default: break;
}
break;}
case WM_DESTROY:
RemoveTask();
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;
}
void RemoveTask(){
NOTIFYICONDATA tnid;
tnid.cbSize = sizeof(NOTIFYICONDATA);
tnid.hWnd = hwnd;
tnid.uID = IDI_ICON1;
Shell_NotifyIcon(NIM_DELETE, &tnid);
}
void CreateTask(){
HICON hIcon;
char lpszTip[] = "Mouse is on the Icon !!";
hIcon = (HICON)LoadImage(GetModuleHandle(NULL),MAKEINTRESOURCE(IDI_ICON1),IMAGE_ICON,16,16,LR_DEFAULTCOLOR);
NOTIFYICONDATA tnid;
tnid.cbSize = sizeof(NOTIFYICONDATA);
tnid.hWnd = hwnd;
tnid.uID = IDI_ICON1;
tnid.uFlags = NIF_MESSAGE | NIF_ICON | NIF_TIP;
tnid.uCallbackMessage = WM_TASKBAR; // my user message
tnid.hIcon = hIcon;
if (lpszTip){ lstrcpyn(tnid.szTip, lpszTip, sizeof(tnid.szTip));}
else{ tnid.szTip[0] = '\0';}
Shell_NotifyIcon(NIM_ADD, &tnid);
if (hIcon){ DestroyIcon(hIcon); }
}
This is what I've mixed up from different examples what were using AFX, were coded to be compatible with Visual C++ and don't work in normal compilers or used MFC instead of Win32.
My problem is that when I move my mouse to the icon, it just disappears. What mistakes have I made?
My resource.rc
Code:
5001 ICON DISCARDABLE "icon1.ico"