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What is a good pattern for using a Global Mutex in C#?
...uid );
// Need a place to store a return value in Mutex() constructor call
bool createdNew;
// edited by Jeremy Wiebe to add example of setting up security for multi-user usage
// edited by 'Marc' to work also on localized systems (don't use just "Everyone")
var allowEveryoneR...
How do I enable MSDTC on SQL Server?
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I've found that the best way to debug is to use the microsoft tool called DTCPing
Copy the file to both the server (DB) and the client (Application server/client pc)
Start it at the server and the client
At the server: fill in the client netbios computer name and try to setup a DTC conne...
Calculate a Running Total in SQL Server
Imagine the following table (called TestTable ):
15 Answers
15
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How can I get a resource content from a static context?
...e setText on widgets, so how can I do that without an activity object to call getResources() on?
14 Answers
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Which, if any, C++ compilers do tail-recursion optimization?
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All current mainstream compilers perform tail call optimisation fairly well (and have done for more than a decade), even for mutually recursive calls such as:
int bar(int, int);
int foo(int n, int acc) {
return (n == 0) ? acc : bar(n - 1, acc + 2);
}
int bar(int n...
Sending a notification from a service in Android
...pIntent)
.setAutoCancel(true)
.addAction(R.drawable.icon, "Call", pIntent)
.addAction(R.drawable.icon, "More", pIntent)
.addAction(R.drawable.icon, "And more", pIntent).build();
NotificationManager notificationManager =
(NotificationManager) getSystemService(NOTI...
How to sign an android apk file
...d here for more details). Threfore Google implemented their own apk signer called apksigner (duh!)
The script file can be found in %ANDROID_HOME%/sdk/build-tools/24.0.3/ (the .jar is in the /lib subfolder). Use it like this
apksigner sign --ks my.keystore my-app.apk --ks-key-alias alias_name
and ...
How to make inline functions in C#
... => x + y;
void print(int x) { Console.WriteLine(x); }
There are basically two different types for these: Func and Action. Funcs return values but Actions don't. The last type parameter of a Func is the return type; all the others are the parameter types.
There are similar types with differen...
PowerShell: Setting an environment variable for a single command only
...stead you can set your environment variables in the CMD environment before calling powershell.exe:
> set foo=bar && powershell.exe -File .\script.ps1
A single & will also work, but will allow the command to continue if the set failed for some reason. (Is this even possible? I have ...
How do you set up use HttpOnly cookies in PHP
...ith PHP 8's named parameters, we'll finally be able to make the set_cookie call less verbose if we don't need to set the other parameters. For example set_cookie($name, $value, httponly: true).
– Sygmoral
Aug 30 at 15:36
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