using namespace System::Diagnostics; Create Process if (File::Exists("C:\\Program Files\\Some Folder\\SomeApp.exe")) { Process1 = gcnew Process(); Process1->StartInfo->FileName = "C:\\Program Files\\Some Folder\\SomeApp.exe"; Process1->StartInfo->Arguments = ""; Process1->Start(); Process1->WaitForInputIdle(); } Is Process Active if ((Process1 != nullptr) && (!Process1->HasExited)) { Close The Process if ((Process1 != nullptr) && (!Process1->HasExited)) { //Process1->CloseMainWindow(); //Process1->Close(); Process1->Kill(); //Use this instead […]
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Is String Value Numeric
int i = 0; bool ValueIsNumeric = int::TryParse(MyStringValue, i); For larger values: UInt64 i = 0; ValueIsNumeric = UInt64::TryParse(MyStringValue, i);
Checkbox General
Item Value Changed private: System::Void CheckboxSetLedChanged (System::Object^ sender, System::EventArgs^ e) { System::Windows::Forms::CheckBox ^CallingCheckBox = safe_cast<System::Windows::Forms::CheckBox^>(sender); if (CallingCheckBox->Checked) { } }
Versions of C++
Intellisense Removed in VS 2010 WTF! Returned in 2012 Good Resources yosoygames, microsoft-we-need-to-talk-about-visual-studio
FTP File Download
Simple FTP File Download using namespace System::IO; //Used for FTP using namespace System::Net; //Used for FTP array<Byte>^FtpFileData; WebClient^ request = gcnew WebClient; request->Credentials = gcnew NetworkCredential("MyUsername","MyPassword"); try { FtpFileData= request->DownloadData("ftp://1.2.3.4/SomeDirectory/MyFile.csv"); } catch (WebException^ e) { FtpFileData= gcnew array<Byte>(0); }
Refresh Form
To cause form controls such as a text box to be refreshed after updating them before your code goes and does something time consuming and intensive you can use this: this->Refresh(); This does work, if it doesn't try adding a System::Threading::Thread::Sleep(200) after it.
Timer Threads
System.Windows.Forms.Timer will execute in the UI thread System.Timers.Timer executes in a thread-pool thread unless you specify a SynchronizingObject System.Threading.Timer executes its callback in a thread-pool thread
Convert Pasted List Into Array Of Strings
array<String^> ^NewUsernames = NewUsernames = gcnew array<String^>(0); String ^sPastedString; String ^sName; String ^sMarker = "[MARKERdfghj23l]"; int Count; try { sPastedString = txtPasteUsernames->Text; txtPasteUsernames->Text = ""; sPastedString = sPastedString->Trim(); if (sPastedString->Length <= 1) //Ignore single character in case user tries to type into box return; //Place markers between each name sPastedString = sPastedString->Replace("\r\n", sMarker); sPastedString […]
Specific USB Devices
How To Find Specific USB Devices That Are Connected This example works by looking for a specific USB device VID and PID and was made to work with devices using Microchips USB CDC USB firmware stack. However it will work with all sorts of USB devices. using namespace System::IO::Ports; //< Needed for USB serial port […]
Send Keys
The SendKeys class can be used to send keystrokes to the currently active window SendKeys::Send("{F12}"); To specify keys combined with any combination of SHIFT, CTRL, and ALT keys, precede the key code with one or more of the following: For SHIFT prefix with + For CTRL prefix with ^ For […]