We can make the Mode to be a type and a value at the same type. type Mode = string; let Mode = { Silent: “Silent”, Normal: “Normal”, Deleted: “Deleted” } let modeStr: string = “Silent”; let mode: Mode; mode = Mode[modeStr]; // Silent mode = Mode.Normal; // Normal mode = “Deleted”; // Deleted mode … Read more
The Control.Begin/End/Invoke() and Dispatcher.Begin/End/Invoke() methods have identical names and somewhat similar behavior to a delegate’s Begin/End/Invoke() methods but it is certainly best to scrap the idea that they are the same. The most important difference is that a delegate’s methods are type-safe, something that’s completely missing from the Control and Dispatcher versions. Runtime behavior is … Read more
The following code #include <windows.h> #include <devguid.h> // for GUID_DEVCLASS_CDROM etc #include <setupapi.h> #include <cfgmgr32.h> // for MAX_DEVICE_ID_LEN, CM_Get_Parent and CM_Get_Device_ID #define INITGUID #include <tchar.h> #include <stdio.h> //#include “c:\WinDDK\7600.16385.1\inc\api\devpkey.h” // include DEVPKEY_Device_BusReportedDeviceDesc from WinDDK\7600.16385.1\inc\api\devpropdef.h #ifdef DEFINE_DEVPROPKEY #undef DEFINE_DEVPROPKEY #endif #ifdef INITGUID #define DEFINE_DEVPROPKEY(name, l, w1, w2, b1, b2, b3, b4, b5, b6, b7, b8, pid) … Read more
I wrote a program in C which demonstrate how to receive the information which you need #include <windows.h> #include <devguid.h> // for GUID_DEVCLASS_CDROM etc #include <setupapi.h> #include <cfgmgr32.h> // for MAX_DEVICE_ID_LEN, CM_Get_Parent and CM_Get_Device_ID #include <tchar.h> #include <stdio.h> #define ARRAY_SIZE(arr) (sizeof(arr)/sizeof(arr[0])) #pragma comment (lib, “setupapi.lib”) // // Define the various device characteristics flags (defined in … Read more
On Error GoTo 0 disables any error trapping currently present in the procedure. On Error GoTo -1 clears the error handling and sets it to nothing which allows you to create another error trap. Example: On Error GoTo -1 After the first error is raised, it will GoTo ErrorFound which will then clear the routine’s … Read more
You didn’t specifically ask how you could make this work, only why it doesn’t by default. However, if you do want your Pages to inherit the Frame’s DataContext, you can do this: In XAML: <Frame Name=”frame” LoadCompleted=”frame_LoadCompleted” DataContextChanged=”frame_DataContextChanged”/> In codebehind: private void frame_DataContextChanged(object sender, DependencyPropertyChangedEventArgs e) { UpdateFrameDataContext(sender, e); } private void frame_LoadCompleted(object sender, NavigationEventArgs … Read more
the issue here is that their Hello World Program is showing up then it would immediately close. why is that? Because it’s finished. When console applications have completed executing and return from their main method, the associated console window automatically closes. This is expected behavior. If you want to keep it open for debugging purposes, … Read more