load icon in dll file not work ?!

knopper · Joined: 15 Aug 2007 Posts: 28

we have to write a module with icon and system tray on pocket pc (WM6). Whan
i start the module as exe file. All icon can loaded, but when i compile the
module as dll file and loaded in main exe app, the icons will not appear.
I have tried to pass the hInstance from main process to loadIcon function
but no result. My question it is possible to load icon in dll file generally ?

Archived from group: microsoft>public>pocketpc>developer

Scott Seligman · Joined: 15 Aug 2007 Posts: 111

=?Utf-8?B?a25vcHBlcg==?= wrote:
>
>we have to write a module with icon and system tray on pocket pc (WM6). Whan
>i start the module as exe file. All icon can loaded, but when i compile the
>module as dll file and loaded in main exe app, the icons will not appear.
>I have tried to pass the hInstance from main process to loadIcon function
>but no result. My question it is possible to load icon in dll file generally ?

Yes, it's possible to load an icon from a DLL.

If you'd like some more help, post code that's failing.

--
--------- Scott Seligman and michelle dot net> ---------
Anger is the most useless emotion, .. destructive to the mind and
hurtful of the heart.
-- Henchick in Dark Tower, Song of Susannah by Stephen King

knopper · Joined: 15 Aug 2007 Posts: 28

Ok here are my code

//************ trayicon.Dll module***************//

#define TRAY_NOTIFYICON WM_USER + 2001
#define ID_TRAY 5000
#define ID_NOTIFY 6000
static const GUID guidPPCAlertsApp = { 0xca777af7, 0x3cde, 0x4c15, { 0xa7,
0xcd, 0x81, 0xf6, 0x29, 0xab, 0xa6, 0xb6 } };

//static const GUID guidPPCAlertsApp = { 0x33765136, 0x8cb9, 0x449a, { 0xb0,
0x20, 0x43, 0xed, 0x40, 0xa, 0xb8, 0xfc } };

// Global Variables:
HINSTANCE g_hInst; // current instance
HWND g_hWndMenuBar; // menu bar handle
TCHAR szTitle[MAX_LOADSTRING]; // title bar text

HICON hTitleBarIcon;

BOOL APIENTRY DllMain (HANDLE hModule, DWORD reason, LPVOID reserved)
{
return TRUE;
}

DWORD WINAPI main_thread (LPVOID param)
{
WinMain(NULL, NULL, _T(""), 0);
return 0;
}

extern "C" __declspec(dllexport) int startmod (void *param) {
if (CreateThread(NULL, 0, main_thread, param, 0, NULL) == NULL) {
return -1;
}
return 0;
}

// Tray Icons and Notification

BOOL TrayMessage(
HWND hwnd,
DWORD dwMessage,
UINT uID,
HICON hIcon,
PTSTR pszTip
)
{
BOOL res = FALSE;
NOTIFYICONDATA tnd;

tnd.cbSize = sizeof(NOTIFYICONDATA);
tnd.hWnd = hwnd;
tnd.uID = uID;
tnd.uFlags = NIF_MESSAGE|NIF_ICON;
tnd.uCallbackMessage = TRAY_NOTIFYICON;
tnd.hIcon = hIcon;
tnd.szTip[0] = '\0';

res = Shell_NotifyIcon(dwMessage, &tnd);
return res;
}

void TrayIconDelete(
HWND hwnd,
UINT uID,
HICON hIcon,
PTSTR pszTip
)
{
TrayMessage(hwnd, NIM_DELETE, uID, hIcon, NULL);
}

void TrayIconModify(
HWND hwnd,
UINT uID,
HICON hIcon,
PTSTR pszTip
)
{
//animate icons
TrayMessage(hwnd, NIM_MODIFY, uID, hIcon, NULL);
}

void TrayIconAdd(
HWND hwnd,
UINT uID,
HICON hIcon,
PTSTR pszTip
)
{
TrayMessage(hwnd, NIM_ADD, uID, hIcon, NULL);
}

void AddNotificationIcon(HWND hWnd,UINT uID,TCHAR *wndTittle, HICON hIcon)
{
SHNOTIFICATIONDATA Notification;

Notification.cbStruct = sizeof(SHNOTIFICATIONDATA);
Notification.dwID = uID;
Notification.npPriority = SHNP_INFORM;
Notification.csDuration = 1; // in second
Notification.hicon = hIcon;
Notification.clsid = guidPPCAlertsApp;
Notification.grfFlags = 0;
Notification.pszTitle = (LPCTSTR) wndTittle;
Notification.pszHTML = _T("module is ready"); // i can
see this popup but no icon ?!
Notification.hwndSink = hWnd;
Notification.rgskn[0].pszTitle = (LPCTSTR) wndTittle;
Notification.rgskn[0].skc.wpCmd = 1003;
Notification.rgskn[0].skc.grfFlags = NOTIF_SOFTKEY_FLAGS_HIDE;
SHNotificationAdd(&Notification);

}

int WINAPI WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPTSTR lpCmdLine,
int nCmdShow)
{
MSG msg;

// Perform application initialization:
if (!InitInstance(hInstance, nCmdShow))
{
return FALSE;
}

#ifndef WIN32_PLATFORM_WFSP
HACCEL hAccelTable;
hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_TRAYICON));
#endif // !WIN32_PLATFORM_WFSP

// Main message loop:
while (GetMessage(&msg, NULL, 0, 0))
{
#ifndef WIN32_PLATFORM_WFSP
if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
#endif // !WIN32_PLATFORM_WFSP
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}

return (int) msg.wParam;
}

BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
HWND hWnd;
//TCHAR szTitle[MAX_LOADSTRING]; // title bar text
TCHAR szWindowClass[MAX_LOADSTRING]; // main window class name

g_hInst = hInstance; //hInstance; // Store instance handle in our global
variable

#if defined(WIN32_PLATFORM_PSPC) || defined(WIN32_PLATFORM_WFSP)
// SHInitExtraControls should be called once during your application's
initialization to initialize any
// of the device specific controls such as CAPEDIT and SIPPREF.
SHInitExtraControls();
#endif // WIN32_PLATFORM_PSPC || WIN32_PLATFORM_WFSP

LoadString(g_hInst, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
LoadString(g_hInst, IDC_TRAYICON, szWindowClass, MAX_LOADSTRING);

#if defined(WIN32_PLATFORM_PSPC) || defined(WIN32_PLATFORM_WFSP)
//If it is already running, then focus on the window, and exit
hWnd = FindWindow(szWindowClass, szTitle);
if (hWnd)
{
// set focus to foremost child window
// The "| 0x00000001" is used to bring any owned windows to the
foreground and
// activate them.
SetForegroundWindow((HWND)((ULONG) hWnd | 0x00000001));

showdebug(L"Application alredy loaded");
return 0;
}

hWnd = FindWindow(szWindowClass, szTitle);
if (hWnd)
{
//set focus to foremost child window
//The "| 0x00000001" is used to bring any owned windows to the
foreground and
//activate them.
SetForegroundWindow((HWND)((ULONG) hWnd | 0x00000001));

showdebug(L"Application alredy loaded");
return 0;
}

#endif // WIN32_PLATFORM_PSPC || WIN32_PLATFORM_WFSP

if (!MyRegisterClass(g_hInst, szWindowClass))
{
showdebug(L"could not register class");
return FALSE;
}

hWnd = CreateWindow(szWindowClass, szTitle, WS_VISIBLE,
CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL,
NULL, hInstance, NULL);

// hWnd = CreateWindow(szWindowClass, szTitle, WS_VISIBLE,
// 0, 0, 0, 0, NULL, NULL, hInstance, NULL);

if (!hWnd)
{
showdebug(L"could not create windows");

return FALSE;
}

#ifdef WIN32_PLATFORM_PSPC
// When the main window is created using CW_USEDEFAULT the height of the
menubar (if one
// is created is not taken into account). So we resize the window after
creating it
// if a menubar is present
if (g_hWndMenuBar)
{
RECT rc;
RECT rcMenuBar;

GetWindowRect(hWnd, &rc);
GetWindowRect(g_hWndMenuBar, &rcMenuBar);
rc.bottom -= (rcMenuBar.bottom - rcMenuBar.top);

MoveWindow(hWnd, rc.left, rc.top, rc.right-rc.left,
rc.bottom-rc.top, FALSE);
}
#endif // WIN32_PLATFORM_PSPC

hTitleBarIcon = LoadIcon(g_hInst, MAKEINTRESOURCE(IDI_ICON1));

AddNotificationIcon(hParent,ID_NOTIFY,szTitle,hTitleBarIcon);

showdebug(L"AddNotificationIcon done"); // but no icon appear !

HICON hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_ICON2));

TrayIconAdd(hParent, ID_TRAY,hIcon, NULL); // but no icon appear !

//ShowWindow(hWnd, SW_HIDE);
ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);

return TRUE;
}

//************in Main proccess exe file***************//

if( (hmodule= LoadLibrary(_T("trayicon.dll"))) == NULL)
{
showdebug(L"module not started.");
}
else
{
startmod = (module_icon)GetProcAddressA(hmodule, "startmod");
}

if (startmod) {
showdebug(L"module started."); // ok
startmod(NULL, 0);
}

I have tried to pass HWND and hInstance from main proccess to trayicon.dll,
but no success. what have i doing wrong ?

"Scott Seligman" wrote:

> =?Utf-8?B?a25vcHBlcg==?= wrote:
> >
> >we have to write a module with icon and system tray on pocket pc (WM6). Whan
> >i start the module as exe file. All icon can loaded, but when i compile the
> >module as dll file and loaded in main exe app, the icons will not appear.
> >I have tried to pass the hInstance from main process to loadIcon function
> >but no result. My question it is possible to load icon in dll file generally ?
>
> Yes, it's possible to load an icon from a DLL.
>
> If you'd like some more help, post code that's failing.
>
> --
> --------- Scott Seligman and michelle dot net> ---------
> Anger is the most useless emotion, .. destructive to the mind and
> hurtful of the heart.
> -- Henchick in Dark Tower, Song of Susannah by Stephen King
>

knopper · Joined: 15 Aug 2007 Posts: 28

O i got it. I have to pass the resource icon from main process

"knopper" wrote:

> Ok here are my code
>
> //************ trayicon.Dll module***************//
>
> #define TRAY_NOTIFYICON WM_USER + 2001
> #define ID_TRAY 5000
> #define ID_NOTIFY 6000
> static const GUID guidPPCAlertsApp = { 0xca777af7, 0x3cde, 0x4c15, { 0xa7,
> 0xcd, 0x81, 0xf6, 0x29, 0xab, 0xa6, 0xb6 } };
>
> //static const GUID guidPPCAlertsApp = { 0x33765136, 0x8cb9, 0x449a, { 0xb0,
> 0x20, 0x43, 0xed, 0x40, 0xa, 0xb8, 0xfc } };
>
> // Global Variables:
> HINSTANCE g_hInst; // current instance
> HWND g_hWndMenuBar; // menu bar handle
> TCHAR szTitle[MAX_LOADSTRING]; // title bar text
>
> HICON hTitleBarIcon;
>
>
> BOOL APIENTRY DllMain (HANDLE hModule, DWORD reason, LPVOID reserved)
> {
> return TRUE;
> }
>
> DWORD WINAPI main_thread (LPVOID param)
> {
> WinMain(NULL, NULL, _T(""), 0);
> return 0;
> }
>
> extern "C" __declspec(dllexport) int startmod (void *param) {
> if (CreateThread(NULL, 0, main_thread, param, 0, NULL) == NULL) {
> return -1;
> }
> return 0;
> }
>
>
>
>
> // Tray Icons and Notification
>
> BOOL TrayMessage(
> HWND hwnd,
> DWORD dwMessage,
> UINT uID,
> HICON hIcon,
> PTSTR pszTip
> )
> {
> BOOL res = FALSE;
> NOTIFYICONDATA tnd;
>
> tnd.cbSize = sizeof(NOTIFYICONDATA);
> tnd.hWnd = hwnd;
> tnd.uID = uID;
> tnd.uFlags = NIF_MESSAGE|NIF_ICON;
> tnd.uCallbackMessage = TRAY_NOTIFYICON;
> tnd.hIcon = hIcon;
> tnd.szTip[0] = '\0';
>
> res = Shell_NotifyIcon(dwMessage, &tnd);
> return res;
> }
>
> void TrayIconDelete(
> HWND hwnd,
> UINT uID,
> HICON hIcon,
> PTSTR pszTip
> )
> {
> TrayMessage(hwnd, NIM_DELETE, uID, hIcon, NULL);
> }
>
> void TrayIconModify(
> HWND hwnd,
> UINT uID,
> HICON hIcon,
> PTSTR pszTip
> )
> {
> //animate icons
> TrayMessage(hwnd, NIM_MODIFY, uID, hIcon, NULL);
> }
>
> void TrayIconAdd(
> HWND hwnd,
> UINT uID,
> HICON hIcon,
> PTSTR pszTip
> )
> {
> TrayMessage(hwnd, NIM_ADD, uID, hIcon, NULL);
> }
>
>
> void AddNotificationIcon(HWND hWnd,UINT uID,TCHAR *wndTittle, HICON hIcon)
> {
> SHNOTIFICATIONDATA Notification;
>
> Notification.cbStruct = sizeof(SHNOTIFICATIONDATA);
> Notification.dwID = uID;
> Notification.npPriority = SHNP_INFORM;
> Notification.csDuration = 1; // in second
> Notification.hicon = hIcon;
> Notification.clsid = guidPPCAlertsApp;
> Notification.grfFlags = 0;
> Notification.pszTitle = (LPCTSTR) wndTittle;
> Notification.pszHTML = _T("module is ready"); // i can
> see this popup but no icon ?!
> Notification.hwndSink = hWnd;
> Notification.rgskn[0].pszTitle = (LPCTSTR) wndTittle;
> Notification.rgskn[0].skc.wpCmd = 1003;
> Notification.rgskn[0].skc.grfFlags = NOTIF_SOFTKEY_FLAGS_HIDE;
> SHNotificationAdd(&Notification);
>
> }
>
> int WINAPI WinMain(HINSTANCE hInstance,
> HINSTANCE hPrevInstance,
> LPTSTR lpCmdLine,
> int nCmdShow)
> {
> MSG msg;
>
> // Perform application initialization:
> if (!InitInstance(hInstance, nCmdShow))
> {
> return FALSE;
> }
>
> #ifndef WIN32_PLATFORM_WFSP
> HACCEL hAccelTable;
> hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_TRAYICON));
> #endif // !WIN32_PLATFORM_WFSP
>
>
> // Main message loop:
> while (GetMessage(&msg, NULL, 0, 0))
> {
> #ifndef WIN32_PLATFORM_WFSP
> if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
> #endif // !WIN32_PLATFORM_WFSP
> {
> TranslateMessage(&msg);
> DispatchMessage(&msg);
> }
> }
>
> return (int) msg.wParam;
> }
>
>
> BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
> {
> HWND hWnd;
> //TCHAR szTitle[MAX_LOADSTRING]; // title bar text
> TCHAR szWindowClass[MAX_LOADSTRING]; // main window class name
>
> g_hInst = hInstance; //hInstance; // Store instance handle in our global
> variable
>
> #if defined(WIN32_PLATFORM_PSPC) || defined(WIN32_PLATFORM_WFSP)
> // SHInitExtraControls should be called once during your application's
> initialization to initialize any
> // of the device specific controls such as CAPEDIT and SIPPREF.
> SHInitExtraControls();
> #endif // WIN32_PLATFORM_PSPC || WIN32_PLATFORM_WFSP
>
> LoadString(g_hInst, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
> LoadString(g_hInst, IDC_TRAYICON, szWindowClass, MAX_LOADSTRING);
>
> #if defined(WIN32_PLATFORM_PSPC) || defined(WIN32_PLATFORM_WFSP)
> //If it is already running, then focus on the window, and exit
> hWnd = FindWindow(szWindowClass, szTitle);
> if (hWnd)
> {
> // set focus to foremost child window
> // The "| 0x00000001" is used to bring any owned windows to the
> foreground and
> // activate them.
> SetForegroundWindow((HWND)((ULONG) hWnd | 0x00000001));
>
> showdebug(L"Application alredy loaded");
> return 0;
> }
>
>
> hWnd = FindWindow(szWindowClass, szTitle);
> if (hWnd)
> {
> //set focus to foremost child window
> //The "| 0x00000001" is used to bring any owned windows to the
> foreground and
> //activate them.
> SetForegroundWindow((HWND)((ULONG) hWnd | 0x00000001));
>
> showdebug(L"Application alredy loaded");
> return 0;
> }
>
> #endif // WIN32_PLATFORM_PSPC || WIN32_PLATFORM_WFSP
>
> if (!MyRegisterClass(g_hInst, szWindowClass))
> {
> showdebug(L"could not register class");
> return FALSE;
> }
>
> hWnd = CreateWindow(szWindowClass, szTitle, WS_VISIBLE,
> CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL,
> NULL, hInstance, NULL);
>
> // hWnd = CreateWindow(szWindowClass, szTitle, WS_VISIBLE,
> // 0, 0, 0, 0, NULL, NULL, hInstance, NULL);
>
> if (!hWnd)
> {
> showdebug(L"could not create windows");
>
> return FALSE;
> }
>
>
> #ifdef WIN32_PLATFORM_PSPC
> // When the main window is created using CW_USEDEFAULT the height of the
> menubar (if one
> // is created is not taken into account). So we resize the window after
> creating it
> // if a menubar is present
> if (g_hWndMenuBar)
> {
> RECT rc;
> RECT rcMenuBar;
>
> GetWindowRect(hWnd, &rc);
> GetWindowRect(g_hWndMenuBar, &rcMenuBar);
> rc.bottom -= (rcMenuBar.bottom - rcMenuBar.top);
>
> MoveWindow(hWnd, rc.left, rc.top, rc.right-rc.left,
> rc.bottom-rc.top, FALSE);
> }
> #endif // WIN32_PLATFORM_PSPC
>
>
> hTitleBarIcon = LoadIcon(g_hInst, MAKEINTRESOURCE(IDI_ICON1));
>
> AddNotificationIcon(hParent,ID_NOTIFY,szTitle,hTitleBarIcon);
>
> showdebug(L"AddNotificationIcon done"); // but no icon appear !
>
> HICON hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_ICON2));
>
> TrayIconAdd(hParent, ID_TRAY,hIcon, NULL); // but no icon appear !
>
>
> //ShowWindow(hWnd, SW_HIDE);
> ShowWindow(hWnd, nCmdShow);
> UpdateWindow(hWnd);
>
> return TRUE;
> }
>
>
>
>
> //************in Main proccess exe file***************//
>
>
> if( (hmodule= LoadLibrary(_T("trayicon.dll"))) == NULL)
> {
> showdebug(L"module not started.");
> }
> else
> {
> startmod = (module_icon)GetProcAddressA(hmodule, "startmod");
> }
>
> if (startmod) {
> showdebug(L"module started."); // ok
> startmod(NULL, 0);
> }
>
>
>
>
> I have tried to pass HWND and hInstance from main proccess to trayicon.dll,
> but no success. what have i doing wrong ?
>
>
> "Scott Seligman" wrote:
>
> > =?Utf-8?B?a25vcHBlcg==?= wrote:
> > >
> > >we have to write a module with icon and system tray on pocket pc (WM6). Whan
> > >i start the module as exe file. All icon can loaded, but when i compile the
> > >module as dll file and loaded in main exe app, the icons will not appear.

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