求助： C++如何判断目录中，是否存在某一类文件
C++如何判断目录中，是否存在某一类文件转换前判断是否有指定(.ts .avi .wmv .3gp .flv .qsv)格式的视频文件存在。。。。。
程序代码：
#pragma once
namespace ToMP4Converter {
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>
/// Form1 摘要
/// </summary>
public ref class Form1 : public System::Windows::Forms::Form
{
public:
Form1(void)
{
InitializeComponent();
//
//TODO: 在此处添加构造函数代码
//
}
protected:
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
~Form1()
{
if (components)
{
delete components;
}
}
private: System::Windows::Forms::GroupBox^ groupBox1;
protected:
private: System::Windows::Forms::RadioButton^ radioButton6;
private: System::Windows::Forms::RadioButton^ radioButton5;
private: System::Windows::Forms::RadioButton^ radioButton4;
private: System::Windows::Forms::RadioButton^ radioButton3;
private: System::Windows::Forms::RadioButton^ radioButton2;
private: System::Windows::Forms::RadioButton^ radioButton1;
private: System::Windows::Forms::Label^ label1;
private: System::Windows::Forms::Label^ label2;
private: System::Windows::Forms::TextBox^ textBox1;
private: System::Windows::Forms::TextBox^ textBox2;
private: System::Windows::Forms::Button^ button1;
private: System::Windows::Forms::Button^ button2;
private: System::Windows::Forms::CheckBox^ checkBox1;
private: System::Windows::Forms::Button^ button3;
private: System::Windows::Forms::FolderBrowserDialog^ folderBrowserDialog1;
private:
/// <summary>
/// 必需的设计器变量。
/// </summary>
System::ComponentModel::Container ^components;
#pragma region Windows Form Designer generated code
/// <summary>
/// 设计器支持所需的方法 - 不要修改
/// 使用代码编辑器修改此方法的内容。
/// </summary>
void InitializeComponent(void)
{
this->groupBox1 = (gcnew System::Windows::Forms::GroupBox());
this->radioButton6 = (gcnew System::Windows::Forms::RadioButton());
this->radioButton5 = (gcnew System::Windows::Forms::RadioButton());
this->radioButton4 = (gcnew System::Windows::Forms::RadioButton());
this->radioButton3 = (gcnew System::Windows::Forms::RadioButton());
this->radioButton2 = (gcnew System::Windows::Forms::RadioButton());
this->radioButton1 = (gcnew System::Windows::Forms::RadioButton());
this->label1 = (gcnew System::Windows::Forms::Label());
this->label2 = (gcnew System::Windows::Forms::Label());
this->textBox1 = (gcnew System::Windows::Forms::TextBox());
this->textBox2 = (gcnew System::Windows::Forms::TextBox());
this->button1 = (gcnew System::Windows::Forms::Button());
this->button2 = (gcnew System::Windows::Forms::Button());
this->checkBox1 = (gcnew System::Windows::Forms::CheckBox());
this->button3 = (gcnew System::Windows::Forms::Button());
this->folderBrowserDialog1 = (gcnew System::Windows::Forms::FolderBrowserDialog());
this->groupBox1->SuspendLayout();
this->SuspendLayout();
//
// groupBox1
//
this->groupBox1->BackColor = System::Drawing::Color::FromArgb(static_cast<System::Int32>(static_cast<System::Byte>(128)), static_cast<System::Int32>(static_cast<System::Byte>(255)),
static_cast<System::Int32>(static_cast<System::Byte>(128)));
this->groupBox1->Controls->Add(this->radioButton6);
this->groupBox1->Controls->Add(this->radioButton5);
this->groupBox1->Controls->Add(this->radioButton4);
this->groupBox1->Controls->Add(this->radioButton3);
this->groupBox1->Controls->Add(this->radioButton2);
this->groupBox1->Controls->Add(this->radioButton1);
this->groupBox1->Dock = System::Windows::Forms::DockStyle::Top;
this->groupBox1->Font = (gcnew System::Drawing::Font(L"宋体", 12));
this->groupBox1->Location = System::Drawing::Point(0, 0);
this->groupBox1->Name = L"groupBox1";
this->groupBox1->Size = System::Drawing::Size(684, 53);
this->groupBox1->TabIndex = 0;
this->groupBox1->TabStop = false;
this->groupBox1->Text = L"输入视频格式";
//
// radioButton6
//
this->radioButton6->AutoSize = true;
this->radioButton6->Font = (gcnew System::Drawing::Font(L"宋体", 10));
this->radioButton6->Location = System::Drawing::Point(481, 24);
this->radioButton6->Name = L"radioButton6";
this->radioButton6->Size = System::Drawing::Size(53, 18);
this->radioButton6->TabIndex = 5;
this->radioButton6->TabStop = true;
this->radioButton6->Text = L".qsv";
this->radioButton6->UseVisualStyleBackColor = true;
this->radioButton6->CheckedChanged += gcnew System::EventHandler(this, &Form1::radioButton6_CheckedChanged);
//
// radioButton5
//
this->radioButton5->AutoSize = true;
this->radioButton5->Font = (gcnew System::Drawing::Font(L"宋体", 10));
this->radioButton5->Location = System::Drawing::Point(393, 24);
this->radioButton5->Name = L"radioButton5";
this->radioButton5->Size = System::Drawing::Size(53, 18);
this->radioButton5->TabIndex = 4;
this->radioButton5->TabStop = true;
this->radioButton5->Text = L".flv";
this->radioButton5->UseVisualStyleBackColor = true;
this->radioButton5->CheckedChanged += gcnew System::EventHandler(this, &Form1::radioButton6_CheckedChanged);
//
// radioButton4
//
this->radioButton4->AutoSize = true;
this->radioButton4->Font = (gcnew System::Drawing::Font(L"宋体", 10));
this->radioButton4->Location = System::Drawing::Point(305, 24);
this->radioButton4->Name = L"radioButton4";
this->radioButton4->Size = System::Drawing::Size(53, 18);
this->radioButton4->TabIndex = 3;
this->radioButton4->TabStop = true;
this->radioButton4->Text = L".3gp";
this->radioButton4->UseVisualStyleBackColor = true;
this->radioButton4->CheckedChanged += gcnew System::EventHandler(this, &Form1::radioButton6_CheckedChanged);
//
// radioButton3
//
this->radioButton3->AutoSize = true;
this->radioButton3->Font = (gcnew System::Drawing::Font(L"宋体", 10));
this->radioButton3->Location = System::Drawing::Point(217, 24);
this->radioButton3->Name = L"radioButton3";
this->radioButton3->Size = System::Drawing::Size(53, 18);
this->radioButton3->TabIndex = 2;
this->radioButton3->TabStop = true;
this->radioButton3->Text = L".wmv";
this->radioButton3->UseVisualStyleBackColor = true;
this->radioButton3->CheckedChanged += gcnew System::EventHandler(this, &Form1::radioButton6_CheckedChanged);
//
// radioButton2
//
this->radioButton2->AutoSize = true;
this->radioButton2->Font = (gcnew System::Drawing::Font(L"宋体", 10));
this->radioButton2->Location = System::Drawing::Point(129, 24);
this->radioButton2->Name = L"radioButton2";
this->radioButton2->Size = System::Drawing::Size(53, 18);
this->radioButton2->TabIndex = 1;
this->radioButton2->TabStop = true;
this->radioButton2->Text = L".avi";
this->radioButton2->UseVisualStyleBackColor = true;
this->radioButton2->CheckedChanged += gcnew System::EventHandler(this, &Form1::radioButton6_CheckedChanged);
//
// radioButton1
//
this->radioButton1->AutoSize = true;
this->radioButton1->Font = (gcnew System::Drawing::Font(L"宋体", 10));
this->radioButton1->Location = System::Drawing::Point(48, 24);
this->radioButton1->Name = L"radioButton1";
this->radioButton1->Size = System::Drawing::Size(46, 18);
this->radioButton1->TabIndex = 0;
this->radioButton1->TabStop = true;
this->radioButton1->Text = L".ts";
this->radioButton1->UseVisualStyleBackColor = true;
this->radioButton1->CheckedChanged += gcnew System::EventHandler(this, &Form1::radioButton6_CheckedChanged);
//
// label1
//
this->label1->AutoSize = true;
this->label1->Font = (gcnew System::Drawing::Font(L"宋体", 10));
this->label1->Location = System::Drawing::Point(0, 85);
this->label1->Name = L"label1";
this->label1->Size = System::Drawing::Size(105, 14);
this->label1->TabIndex = 1;
this->label1->Text = L"视频输入路径：";
//
// label2
//
this->label2->AutoSize = true;
this->label2->Font = (gcnew System::Drawing::Font(L"宋体", 10));
this->label2->Location = System::Drawing::Point(0, 132);
this->label2->Name = L"label2";
this->label2->Size = System::Drawing::Size(105, 14);
this->label2->TabIndex = 2;
this->label2->Text = L"MP4 保存路径：";
//
// textBox1
//
this->textBox1->Font = (gcnew System::Drawing::Font(L"宋体", 12));
this->textBox1->Location = System::Drawing::Point(98, 80);
this->textBox1->Name = L"textBox1";
this->textBox1->Size = System::Drawing::Size(502, 26);
this->textBox1->TabIndex = 3;
//
// textBox2
//
this->textBox2->Font = (gcnew System::Drawing::Font(L"宋体", 12));
this->textBox2->Location = System::Drawing::Point(98, 126);
this->textBox2->Name = L"textBox2";
this->textBox2->Size = System::Drawing::Size(502, 26);
this->textBox2->TabIndex = 4;
//
// button1
//
this->button1->BackColor = System::Drawing::Color::FromArgb(static_cast<System::Int32>(static_cast<System::Byte>(0)), static_cast<System::Int32>(static_cast<System::Byte>(192)),
static_cast<System::Int32>(static_cast<System::Byte>(192)));
this->button1->Font = (gcnew System::Drawing::Font(L"宋体", 10));
this->button1->Location = System::Drawing::Point(606, 80);
this->button1->Name = L"button1";
this->button1->Size = System::Drawing::Size(68, 26);
this->button1->TabIndex = 5;
this->button1->Text = L"浏 览";
this->button1->UseVisualStyleBackColor = false;
this->button1->Click += gcnew System::EventHandler(this, &Form1::button1_Click);
//
// button2
//
this->button2->BackColor = System::Drawing::Color::FromArgb(static_cast<System::Int32>(static_cast<System::Byte>(0)), static_cast<System::Int32>(static_cast<System::Byte>(192)),
static_cast<System::Int32>(static_cast<System::Byte>(192)));
this->button2->Font = (gcnew System::Drawing::Font(L"宋体", 10));
this->button2->Location = System::Drawing::Point(607, 126);
this->button2->Name = L"button2";
this->button2->Size = System::Drawing::Size(68, 26);
this->button2->TabIndex = 6;
this->button2->Text = L"浏 览";
this->button2->UseVisualStyleBackColor = false;
this->button2->Click += gcnew System::EventHandler(this, &Form1::button2_Click);
//
// checkBox1
//
this->checkBox1->AutoSize = true;
this->checkBox1->Checked = true;
this->checkBox1->CheckState = System::Windows::Forms::CheckState::Checked;
this->checkBox1->Font = (gcnew System::Drawing::Font(L"宋体", 10));
this->checkBox1->Location = System::Drawing::Point(3, 168);
this->checkBox1->Name = L"checkBox1";
this->checkBox1->Size = System::Drawing::Size(124, 18);
this->checkBox1->TabIndex = 7;
this->checkBox1->Text = L"删除原视频文件";
this->checkBox1->UseVisualStyleBackColor = true;
//
// button3
//
this->button3->BackColor = System::Drawing::Color::FromArgb(static_cast<System::Int32>(static_cast<System::Byte>(0)), static_cast<System::Int32>(static_cast<System::Byte>(192)),
static_cast<System::Int32>(static_cast<System::Byte>(192)));
this->button3->Font = (gcnew System::Drawing::Font(L"宋体", 12));
this->button3->Location = System::Drawing::Point(280, 198);
this->button3->Name = L"button3";
this->button3->Size = System::Drawing::Size(113, 34);
this->button3->TabIndex = 8;
this->button3->Text = L"开始转换";
this->button3->UseVisualStyleBackColor = false;
this->button3->Click += gcnew System::EventHandler(this, &Form1::button3_Click);
//
// Form1
//
this->AutoScaleDimensions = System::Drawing::SizeF(6, 12);
this->AutoScaleMode = System::Windows::Forms::AutoScaleMode::Font;
this->BackColor = System::Drawing::Color::FromArgb(static_cast<System::Int32>(static_cast<System::Byte>(192)), static_cast<System::Int32>(static_cast<System::Byte>(255)),
static_cast<System::Int32>(static_cast<System::Byte>(255)));
this->ClientSize = System::Drawing::Size(684, 245);
this->Controls->Add(this->button3);
this->Controls->Add(this->checkBox1);
this->Controls->Add(this->button2);
this->Controls->Add(this->button1);
this->Controls->Add(this->textBox2);
this->Controls->Add(this->textBox1);
this->Controls->Add(this->label2);
this->Controls->Add(this->label1);
this->Controls->Add(this->groupBox1);
this->MaximumSize = System::Drawing::Size(700, 284);
this->MinimumSize = System::Drawing::Size(700, 284);
this->Name = L"Form1";
this->Text = L"ToMP4Converter";
this->groupBox1->ResumeLayout(false);
this->groupBox1->PerformLayout();
this->ResumeLayout(false);
this->PerformLayout();
}
#pragma endregion
private: String^ InPath; //视频输入路径
private: String^ OutPath; //MP4 保存路径
private: static String^ InType = ".ts"; //输入视频文件格式
private: System::Void button1_Click(System::Object^ sender, System::EventArgs^ e)
{
if (folderBrowserDialog1->ShowDialog() == Windows::Forms::DialogResult::OK)
{
textBox1->Text = folderBrowserDialog1->SelectedPath;
}
}
private: System::Void button2_Click(System::Object^ sender, System::EventArgs^ e)
{
if (folderBrowserDialog1->ShowDialog() == Windows::Forms::DialogResult::OK)
{
textBox2->Text = folderBrowserDialog1->SelectedPath;
}
}
private: System::Void radioButton6_CheckedChanged(System::Object^ sender, System::EventArgs^ e)
{
InType = ((RadioButton^)sender)->Text;
}
private: System::Void button3_Click(System::Object^ sender, System::EventArgs^ e)
{
}
};
}
转换前判断是否有指定(.ts .avi .wmv .3gp .flv .qsv)格式的视频文件存在。。。。。
开始转换 是 button3
private: System::Void button3_Click(System::Object^ sender, System::EventArgs^ e)
{
如何判断，目录是否存在 选定类型的视频文件 (.ts .avi .wmv .3gp .flv .qsv)
}
