How to get type of Icon in system messages

[User 10847587]

Hi, I writing a small application which will notify whenever any windows messages or Dialogue boxes appear with any of the (Error,Information,Warning,Question) Icons. this is how i am doing.. main() { WinHAn = FindWindowA(NULL,"Windows Security"); if(WinHAn != NULL) { EnumChildWindows(WinHAn,SearchIcon,(LPARAM) &winIconSearch); } } static BOOL CALLBACK SearchIcon(HWND hwnd, LPARAM lParam) { style = GetWindowLongPtr(hwnd, GWL_STYLE); if ((style & SS_ICON) == SS_ICON) { thisHan =(UINT64)SendMessageW(hwnd, STM_GETIMAGE,IMAGE_ICON, 0L); searchHan =(UINT64) LoadIconA(NULL, (LPCSTR)(IDI_WARNING)); if(thisHan ==searchHan ) { printf("Icon Found"); } return TRUE; } This is only for Warning messages.But it is not working. can any body tell me what the problem is.. Thanks. vvk.

[Jochen Arndt]

You might add some more output to your program to see which code is reached or use the debugger for the same purpose. E.g. if a window with the title "Windows Security" is found and if such a window contains a static control with an icon. Your check for SS_ICON is wrong (but this is not the reason for finding nothing). You should use:

if ((style & SS_TYPEMASK) == SS_ICON)

Finally I'm not sure if this can be done this way. While the LoadIcon description states that it may return a handle to an existing resource, this may be only true when the icon has been loaded by the same application.

[Lost User]

Stepping through your code with the debugger will identify where it is failing. Have you checked that there is a currently open Window with the title "Windows Security", to satisfy the FindWindowA call? By the way, it is really bad practice to use the A or W suffixes on your Windows API calls. Use the project settings to set your project to ASCII or Unicode mode, and let the compiler generate the appropriate code.

[User 10847587]

Hi, i have tried with debugging and the it is failing at the if condition if(thisHan ==searchHan).Sendmessage function('thisHan') is returnig one value and where Loadicon function is returning('searchHan') different value.

[Lost User]

So the icons don't match. All that tells you is that the icon for the message window is not the one you were hoping for. The chances of you being able to use this code in a production environment are not very high, since very few applications will be doing things the way you expect or want.