1 很多人在 WinXP SP3下运行 VirtuaNES 会出现“CDirectInput:CoCreateInstance failed”错误提示，目前网上还没有一个有效的解决办法。实际上是由于DirectX input冲突造成的，运行dxdiag切换到“输入”标签后在下面会看到错误提示。再次安装DirectX也无法解决。根据错误提示，问题出在注册表键值上：HKCRCLSID{25E609E1-...
#include <wchar.h> int main(int argc, char **argv) { HRESULT hr = S_OK; /// // Call CoInitialize to initialize the COM library and then // call CoCreateInstance to get the Task Scheduler object. /// ITaskScheduler *pITS; hr = CoInitialize(NULL); if (SUCCEEDED(hr)) { hr = ...
Hàm CreateObject và hàm CoCreateInstance trả về một trong các thông báo lỗi thời gian chạy sau và không thể bắt đầu cho tự động hóa. Tin nhắn 1 Lỗi thời gian chạy ' 429 ': cấu...
/// ITaskScheduler *pITS; hr = CoInitialize(NULL); if (SUCCEEDED(hr)) { hr = CoCreateInstance(CLSID_CTaskScheduler, NULL, CLSCTX_INPROC_SERVER, IID_ITaskScheduler, (void **) &pITS); if (FAILED(hr)) { CoUninitialize(); return 1; } } else { return 1; } /// // Call ITaskSc...
为了创建COM对象并从这个对象获得接口,必须调用COM库的API函数,CoCreateInstance()。当你调用CoCreateInstance()时,它负责在注册表中查找COM服务器的位置,将服务器加载到内存,并创建你所请求的coclass实例。其原型如下: HRESULT CoCreateInstance ( REFCLSID rclsid, ...
Unable to CoCreateInstance Unable to find entry point named in dll undeclared identifier c2065 but i did declared it Unexpected warning C4244 (conversion from 'double' to 'float', possible loss of data) Unhandled exception - how to resolve? Unhandled Exception 'System.Runtime.InteropServices.SEHExc...
"CoCreateInstanceerror", MB_OK|MB_ICONEXCLAMATION); C++实例程序IExampleCplusApp 目录下包含一个C++例程。它是像C例子一样正确。但你要注意有些重要的不同之处。首先,因为在IExample.h中宏把IExmaple定义为一个C ++类(而不是一个结构),并且因为C++用特殊的方式处理类,C++程序以不同的格式调用我们的IExampl...
HRESULT hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&pDevEnum)); if (SUCCEEDED(hr)) { // Create an enumerator for the category. hr = pDevEnum->CreateClassEnumerator(category, ppEnum, 0);
CoCreateInstance directly returns our IExample, bypassing the need for us to get the IClassFactory. Here's an example use: if ((hr = CoCreateInstance(&CLSID_IExample, 0, CLSCTX_INPROC_SERVER, &IID_IExample, &exampleObj))) MessageBox(0, "Can't create IExample object", "CoCreateInstance...
hr = pFileOpen.CoCreateInstance(__uuidof(FileOpenDialog)); if (SUCCEEDED(hr)) { // Show the Open dialog box. hr = pFileOpen->Show(NULL); // Get the file name from the dialog box. if (SUCCEEDED(hr)) { CComPtr<IShellItem> pItem; ...