Process Problem
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Thread: Process Problem

  1. #1
    Join Date
    Sep 2009
    Posts
    1

    Process Problem

    Hi all,I'm new to CodeGuru,I'm Romanian and I can't speech very good english.I'm using Visual C++ Professional, and CLR.I'm still learning C++.My project is a Server Manager (for HLDS).I'm trying to set "hlds.exe" process to HIGH priority,but first,I check if the process is active.Problem : My function allways return false and I can't see the mistake.
    Function :
    Code:
    bool HLDSIsRunning()
    {    
    unsigned long aProcesses[1024], cbNeeded, cProcesses;
    if(EnumProcesses(aProcesses, sizeof(aProcesses), &cbNeeded) == 0)
    return false;
    
    cProcesses = cbNeeded / sizeof(unsigned long);
    for(unsigned int i = 0; i < cProcesses; i++)
    		{
    			if(aProcesses[i] == 0)
    			continue;
    
    		HANDLE hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, 0, aProcesses[i]);
    		TCHAR buffer[50];
    		GetModuleBaseName(hProcess, 0, buffer, 50);
    		DWORD dwExitStatus = 0;
    		GetExitCodeProcess(hProcess, &dwExitStatus);
    		CloseHandle(hProcess);
    		if( buffer == _T("hlds.exe") && dwExitStatus != 0 )	return true;
    		}
    return false;
    }
    All Code :
    Code:
    #include <windows.h>
    #include <Psapi.h>
    #include <tchar.h>
    
    #pragma comment(lib,"Winmm.lib")
    #pragma comment(lib,"Psapi.lib")
    
    #pragma once
    
    HANDLE popcorn;
    
    bool HLDSIsRunning()
    {    
    unsigned long aProcesses[1024], cbNeeded, cProcesses;
    if(EnumProcesses(aProcesses, sizeof(aProcesses), &cbNeeded) == 0)
    return false;
    
    cProcesses = cbNeeded / sizeof(unsigned long);
    for(unsigned int i = 0; i < cProcesses; i++)
    		{
    			if(aProcesses[i] == 0)
    			continue;
    
    		HANDLE hProcess = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, 0, aProcesses[i]);
    		TCHAR buffer[50];
    		GetModuleBaseName(hProcess, 0, buffer, 50);
    		DWORD dwExitStatus = 0;
    		GetExitCodeProcess(hProcess, &dwExitStatus);
    		CloseHandle(hProcess);
    		if( buffer == _T("hlds.exe") && dwExitStatus != 0 )	return true;
    		}
    return false;
    }
    
    namespace SManager {
    
    	using namespace System;
    	using namespace System::ComponentModel;
    	using namespace System::Collections;
    	using namespace System::Windows::Forms;
    	using namespace System::Data;
    	using namespace System::Drawing;
    
    	/// <summary>
    	/// Summary for Form1
    	///
    	/// WARNING: If you change the name of this class, you will need to change the
    	///          'Resource File Name' property for the managed resource compiler tool
    	///          associated with all .resx files this class depends on.  Otherwise,
    	///          the designers will not be able to interact properly with localized
    	///          resources associated with this form.
    	/// </summary>
    	public ref class Form1 : public System::Windows::Forms::Form
    	{
    	public:
    		Form1(void)
    		{
    			InitializeComponent();
    			//
    			//TODO: Add the constructor code here
    			//
    		}
    
    	protected:
    		/// <summary>
    		/// Clean up any resources being used.
    		/// </summary>
    		~Form1()
    		{
    			if (components)
    			{
    				delete components;
    			}
    		}
    	private: System::Windows::Forms::GroupBox^  groupBox1;
    	private: System::Windows::Forms::Button^  button1;
    	private: System::Windows::Forms::Button^  button2;
    	private: System::Windows::Forms::GroupBox^  groupBox2;
    	private: System::Windows::Forms::Button^  button5;
    	private: System::Windows::Forms::Button^  button4;
    	private: System::Windows::Forms::Button^  button3;
    	protected: 
    
    	private:
    		/// <summary>
    		/// Required designer variable.
    		/// </summary>
    		System::ComponentModel::Container ^components;
    
    #pragma region Windows Form Designer generated code
    		/// <summary>
    		/// Required method for Designer support - do not modify
    		/// the contents of this method with the code editor.
    		/// </summary>
    		void InitializeComponent(void)
    		{
    			System::ComponentModel::ComponentResourceManager^  resources = (gcnew System::ComponentModel::ComponentResourceManager(Form1::typeid));
    			this->groupBox1 = (gcnew System::Windows::Forms::GroupBox());
    			this->button2 = (gcnew System::Windows::Forms::Button());
    			this->button1 = (gcnew System::Windows::Forms::Button());
    			this->groupBox2 = (gcnew System::Windows::Forms::GroupBox());
    			this->button5 = (gcnew System::Windows::Forms::Button());
    			this->button4 = (gcnew System::Windows::Forms::Button());
    			this->button3 = (gcnew System::Windows::Forms::Button());
    			this->groupBox1->SuspendLayout();
    			this->groupBox2->SuspendLayout();
    			this->SuspendLayout();
    			// 
    			// groupBox1
    			// 
    			this->groupBox1->Controls->Add(this->button2);
    			this->groupBox1->Controls->Add(this->button1);
    			this->groupBox1->Location = System::Drawing::Point(12, 12);
    			this->groupBox1->Name = L"groupBox1";
    			this->groupBox1->Size = System::Drawing::Size(182, 50);
    			this->groupBox1->TabIndex = 0;
    			this->groupBox1->TabStop = false;
    			this->groupBox1->Text = L"Booster";
    			// 
    			// button2
    			// 
    			this->button2->Location = System::Drawing::Point(100, 19);
    			this->button2->Name = L"button2";
    			this->button2->Size = System::Drawing::Size(75, 23);
    			this->button2->TabIndex = 1;
    			this->button2->Text = L"Stop";
    			this->button2->UseVisualStyleBackColor = true;
    			this->button2->Click += gcnew System::EventHandler(this, &Form1::button2_Click);
    			// 
    			// button1
    			// 
    			this->button1->Location = System::Drawing::Point(6, 19);
    			this->button1->Name = L"button1";
    			this->button1->Size = System::Drawing::Size(75, 23);
    			this->button1->TabIndex = 0;
    			this->button1->Text = L"Start";
    			this->button1->UseVisualStyleBackColor = true;
    			this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click);
    			// 
    			// groupBox2
    			// 
    			this->groupBox2->Controls->Add(this->button5);
    			this->groupBox2->Controls->Add(this->button4);
    			this->groupBox2->Controls->Add(this->button3);
    			this->groupBox2->Location = System::Drawing::Point(12, 79);
    			this->groupBox2->Name = L"groupBox2";
    			this->groupBox2->Size = System::Drawing::Size(182, 73);
    			this->groupBox2->TabIndex = 1;
    			this->groupBox2->TabStop = false;
    			this->groupBox2->Text = L"Process Manager";
    			// 
    			// button5
    			// 
    			this->button5->Location = System::Drawing::Point(52, 45);
    			this->button5->Name = L"button5";
    			this->button5->Size = System::Drawing::Size(75, 23);
    			this->button5->TabIndex = 2;
    			this->button5->Text = L"Normal";
    			this->button5->UseVisualStyleBackColor = true;
    			this->button5->Click += gcnew System::EventHandler(this, &Form1::button5_Click);
    			// 
    			// button4
    			// 
    			this->button4->Location = System::Drawing::Point(100, 16);
    			this->button4->Name = L"button4";
    			this->button4->Size = System::Drawing::Size(75, 23);
    			this->button4->TabIndex = 1;
    			this->button4->Text = L"RealTime";
    			this->button4->UseVisualStyleBackColor = true;
    			this->button4->Click += gcnew System::EventHandler(this, &Form1::button4_Click);
    			// 
    			// button3
    			// 
    			this->button3->Location = System::Drawing::Point(6, 16);
    			this->button3->Name = L"button3";
    			this->button3->Size = System::Drawing::Size(75, 23);
    			this->button3->TabIndex = 0;
    			this->button3->Text = L"High";
    			this->button3->UseVisualStyleBackColor = true;
    			this->button3->Click += gcnew System::EventHandler(this, &Form1::button3_Click);
    			// 
    			// Form1
    			// 
    			this->AutoScaleDimensions = System::Drawing::SizeF(6, 13);
    			this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
    			this->ClientSize = System::Drawing::Size(207, 273);
    			this->Controls->Add(this->groupBox2);
    			this->Controls->Add(this->groupBox1);
    			this->Icon = (cli::safe_cast<System::Drawing::Icon^  >(resources->GetObject(L"$this.Icon")));
    			this->Name = L"Form1";
    			this->Text = L"SManager";
    			this->groupBox1->ResumeLayout(false);
    			this->groupBox2->ResumeLayout(false);
    			this->ResumeLayout(false);
    
    		}
    #pragma endregion
    	private: System::Void button1_Click(System::Object^  sender, System::EventArgs^  e) 
    			 {
    			 timeBeginPeriod(1);
    			 MessageBox::Show( "Booster Started !", "SManager",
                 MessageBoxButtons::OK, MessageBoxIcon::Information );
    			 }
    	private: System::Void button2_Click(System::Object^  sender, System::EventArgs^  e) 
    			 {
    			 timeEndPeriod(1);
    			 MessageBox::Show( "Booster Started !", "SManager",
                 MessageBoxButtons::OK, MessageBoxIcon::Information );
    			 }
    	private: System::Void button3_Click(System::Object^  sender, System::EventArgs^  e) 
    			 {
    				 if( HLDSIsRunning() ) {
    									SetPriorityClass(popcorn,HIGH_PRIORITY_CLASS);
    									MessageBox::Show( "HLDS is now high !", "SManager",
    									MessageBoxButtons::OK, MessageBoxIcon::Information );
    											 } 
    				 else 				MessageBox::Show( "HLDS is not active !", "SManager",
    									MessageBoxButtons::OK, MessageBoxIcon::Warning );
    
    			 }
    private: System::Void button4_Click(System::Object^  sender, System::EventArgs^  e) 
    		 {
    				 if( HLDSIsRunning() ) {
    									SetPriorityClass(popcorn,REALTIME_PRIORITY_CLASS);
    									MessageBox::Show( "HLDS is now RealTime !", "SManager",
    									MessageBoxButtons::OK, MessageBoxIcon::Information );
    											 } 
    				 else 				MessageBox::Show( "HLDS is not active !", "SManager",
    									MessageBoxButtons::OK, MessageBoxIcon::Warning );
    		 }
    private: System::Void button5_Click(System::Object^  sender, System::EventArgs^  e) 
    		 {
    				 if( HLDSIsRunning() ) {
    									SetPriorityClass(popcorn,NORMAL_PRIORITY_CLASS);
    									MessageBox::Show( "HLDS is now Normal!", "SManager",
    									MessageBoxButtons::OK, MessageBoxIcon::Information );
    											 } 
    				 else 				MessageBox::Show( "HLDS is not active !", "SManager",
    									MessageBoxButtons::OK, MessageBoxIcon::Warning );
    		 }
    };
    }
    Thanks .

  2. #2
    Join Date
    Sep 2004
    Location
    Holland (land of the dope)
    Posts
    4,123

    Re: Process Problem

    Code:
    buffer == _T("hlds.exe")
    You are comparing the pointers, not the text itself.

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