MFC Application Disable/Hide Taskbar icon

[efe.ozyer]

How can i disable or hide mfc application taskbar icon?

seems like "ShowInTaskBar = false";

[Ancient Dragon]

You mean the icon in the taskbar when the application is running? Why would you even be concerned about that? An MFC application has a dialog or window that is visible to the user then why not the icon in the task bar?

[RonalBertogi]

OK, for the sake of answering the question, when creating your main window (with CreateWindowEx API and not with CreateWindow macro), include in the extended window style the WS_EX_TOOLWINDOW. But you'll have title bar which is awkward for a main window. If you are using a dialog box as your main window, find in the dialog box's properties any property that corresponds to that extended style. In VC++ 6, it was a checkbox button in the extended window style page. In VC2010, it is a boolean property.

ITaskbarIcon interface give's you more control on what appears on the taskbar.

[triumphost]

I use the following and link to "Shell32" and "Ole32":

    #include <windows.h>
    #include <shobjidl.h>

    const GUID CLSID_TaskbarList = {0x56FDF344, 0xFD6D, 0x11D0, {0x95, 0x8A, 0x00, 0x60, 0x97, 0xC9, 0xA0, 0x90}};
    const GUID IID_ITaskbarList = {0x56FDF342, 0xFD6D, 0x11D0, {0x95, 0x8A, 0x00, 0x60, 0x97, 0xC9, 0xA0, 0x90}};
    const GUID IID_ITaskbarList2 = {0x602D4995, 0xB13A, 0x429b, {0xA6, 0x6E, 0x19, 0x35, 0xE4, 0x4F, 0x43, 0x17}};
    const GUID IID_ITaskList3 = {0xEA1AFB91, 0x9E28, 0x4B86, {0x90, 0xE9, 0x9E, 0x9F, 0x8A, 0x5E, 0xEF, 0xAF}};


    void ShowTaskbarIcon(HWND WindowHandle)
    {
        ITaskbarList* TaskListPtr;
        CoInitialize(nullptr);
        long Result = !CoCreateInstance(CLSID_TaskbarList, nullptr, CLSCTX_SERVER, IID_ITaskbarList, reinterpret_cast<void**>(&TaskListPtr));
        if (Result) TaskListPtr->AddTab(WindowHandle);
        TaskListPtr->Release();
        CoUninitialize();
    }

    void HideTaskbarIcon(HWND WindowHandle)
    {
        ITaskbarList* TaskListPtr;
        CoInitialize(nullptr);
        long Result = !CoCreateInstance(CLSID_TaskbarList, nullptr, CLSCTX_SERVER, IID_ITaskbarList, reinterpret_cast<void**>(&TaskListPtr));
        if (Result) TaskListPtr->DeleteTab(WindowHandle);
        TaskListPtr->Release();
        CoUninitialize();
    }

[RonalBertogi]

Ugh! Got myself corrected by triumphost. I meant ITaskbarList. But I want to point two lines in your post that may cause an access violation error: These are on lines 16 and 26.