digitalmars.D.learn - Why isn't IID_ITaskbarList3 defined?
I'm trying to write a blinding and I found both IID_ITaskbarList and IID_ITaskbarList2 are defined but IID_ITaskbarList3 isn't. Any reason why it isn't defined? sorry if it sounds such a naive question, I'm new to COM and D interop. I knew a thing or two Then how do I define it myself? I've tried this:GUID IID_ITaskbarList3 = createGUIDFromString("{ea1afb91-9e28-4b86-90e9-9e9f8a5eefaf}");GUID createGUIDFromString(string guidStr) { GUID guid; wchar* GUID_STR = toUTFz!(wchar*)(guidStr); HRESULT hr = IIDFromString(GUID_STR, &guid); assert(SUCCEEDED(hr)); return guid; }I'm unsure if it's the proper way to do it (if not, please show me the right one) But the call to CoCreateInstance() still fails to access any member of m_pITaskBarList3 object, so I'm making sure I'm passing the correct arguments to the function. The memory access error is:object.Error (0): Access ViolationHRESULT hr = CoCreateInstance(&CLSID_TaskbarList, null, CLSCTX_INPROC_SERVER, &IID_ITaskbarList3, cast(void **) &m_pITaskBarList3); assert(hr == S_OK);The assert() doesn't run, so the error is somewhere else... I guess.
Oct 15 2017
On Sunday, 15 October 2017 at 15:13:09 UTC, Nieto wrote:I'm trying to write a blinding and I found both IID_ITaskbarList and IID_ITaskbarList2 are defined but IID_ITaskbarList3 isn't. Any reason why it isn't defined? sorry if it sounds such a naive question, I'm new to COM and D Then how do I define it myself? I've tried this:Did you call CoInitialize before creating anything? Is your ITaskbarList3 defined as interface? Here is the simple example anyway https://gist.github.com/Superbelko/277d86a17d497eae85a7f1788bfd83b4 There are no predefined GUID's and declarations for some stuff because standard WinAPI bindings is incomplete, you can probably contribute and add some https://github.com/dlang/druntimeGUID IID_ITaskbarList3 = createGUIDFromString("{ea1afb91-9e28-4b86-90e9-9e9f8a5eefaf}");GUID createGUIDFromString(string guidStr) { GUID guid; wchar* GUID_STR = toUTFz!(wchar*)(guidStr); HRESULT hr = IIDFromString(GUID_STR, &guid); assert(SUCCEEDED(hr)); return guid; }I'm unsure if it's the proper way to do it (if not, please show me the right one) But the call to CoCreateInstance() still fails to access any member of m_pITaskBarList3 object, so I'm making sure I'm passing the correct arguments to the function. The memory access error is:object.Error (0): Access ViolationHRESULT hr = CoCreateInstance(&CLSID_TaskbarList, null, CLSCTX_INPROC_SERVER, &IID_ITaskbarList3, cast(void **) &m_pITaskBarList3); assert(hr == S_OK);The assert() doesn't run, so the error is somewhere else... I guess.
Oct 15 2017
On Monday, 16 October 2017 at 05:06:26 UTC, evilrat wrote:On Sunday, 15 October 2017 at 15:13:09 UTC, Nieto wrote:Yes, I did call CoInitialize(null) before call CoCreateInstance(). I thoguht the GUID was some kind of constant value to identify the ITaskbarList3 (the struct name is even IID). I was dead wrong lol but I was just starting with the COM world. I defined CLSID_ITaskbarList3 like your IID_ITaskbarList3. I realized my mistake: out of C++ habit, I declared the ITaskbarList3 as a pointer! That's why it wasn't working. I didn't realized it until I read your code. Again, thank you very much. I'll try contibute to the WinAPI binding once mine is complete. Have a nice day! :)I'm trying to write a blinding and I found both IID_ITaskbarList and IID_ITaskbarList2 are defined but IID_ITaskbarList3 isn't. Any reason why it isn't defined? sorry if it sounds such a naive question, I'm new to COM and D Then how do I define it myself? I've tried this:Did you call CoInitialize before creating anything? Is your ITaskbarList3 defined as interface? Here is the simple example anyway https://gist.github.com/Superbelko/277d86a17d497eae85a7f1788bfd83b4 There are no predefined GUID's and declarations for some stuff because standard WinAPI bindings is incomplete, you can probably contribute and add some https://github.com/dlang/druntimeGUID IID_ITaskbarList3 = createGUIDFromString("{ea1afb91-9e28-4b86-90e9-9e9f8a5eefaf}");GUID createGUIDFromString(string guidStr) { GUID guid; wchar* GUID_STR = toUTFz!(wchar*)(guidStr); HRESULT hr = IIDFromString(GUID_STR, &guid); assert(SUCCEEDED(hr)); return guid; }I'm unsure if it's the proper way to do it (if not, please show me the right one) But the call to CoCreateInstance() still fails to access any member of m_pITaskBarList3 object, so I'm making sure I'm passing the correct arguments to the function. The memory access error is:object.Error (0): Access ViolationHRESULT hr = CoCreateInstance(&CLSID_TaskbarList, null, CLSCTX_INPROC_SERVER, &IID_ITaskbarList3, cast(void **) &m_pITaskBarList3); assert(hr == S_OK);The assert() doesn't run, so the error is somewhere else... I guess.
Oct 16 2017